Mercurial > hg > octave-max
changeset 4155:61fba034b13b
[project @ 2002-11-07 18:46:13 by jwe]
| author | jwe |
|---|---|
| date | Thu, 07 Nov 2002 18:46:20 +0000 |
| parents | f10865750046 |
| children | 7d85ceb0c570 |
| files | libcruft/ChangeLog libcruft/misc/Makefile.in libcruft/misc/f77-fcn.h libcruft/misc/quit.h liboctave/DASPK.cc src/ChangeLog src/Makefile.in src/cutils.c src/oct-snprintf.c src/oct-snprintf.h src/snprintf.c src/toplev.cc |
| diffstat | 12 files changed, 1128 insertions(+), 49 deletions(-) [+] |
line wrap: on
line diff
--- a/libcruft/ChangeLog +++ b/libcruft/ChangeLog @@ -1,3 +1,17 @@ +2002-11-07 John W. Eaton <jwe@bevo.che.wisc.edu> + + * misc/Makefile.in: Handle automatic dependency generation for + C/C++ source files. + + * misc/quit.h (INCREMENT_OCTAVE_INTERRUPT_IMMEDIATELY, + DECREMENT_OCTAVE_INTERRUPT_IMMEDIATELY, + SET_OCTAVE_INTERRUPT_IMMEDIATELY): New macros. + (BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE, + BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE): Use them. + * f77-fcn.h (F77_XFCN): Likewise. + + * misc/quit.cc: Include <cstring> for memcpy decl. + 2002-11-06 John W. Eaton <jwe@bevo.che.wisc.edu> * misc/f77-fcn.h (F77_XFCN): Adapt to new signal/exception
--- a/libcruft/misc/Makefile.in +++ b/libcruft/misc/Makefile.in @@ -12,8 +12,14 @@ top_srcdir = @top_srcdir@ VPATH = @srcdir@ -SPECIAL := machar.c d1mach-tst.for f77-extern.cc \ - f77-fcn.c f77-fcn.h lo-error.c lo-error.h quit.h quit.cc +SPECIAL := machar.c f77-extern.cc f77-fcn.c lo-error.c quit.cc + +DEP_1 := $(patsubst %.c, %.d, $(SPECIAL)) +MAKEDEPS := $(patsubst %.cc, %.d, $(DEP_1)) + +SPECIAL_INCLUDE := f77-fcn.h lo-error.h quit.h + +SPECIAL:= d1mach-tst.for $(SPECIAL_SRC) $(SPECIAL_INCLUDE) SPECIAL_DEPEND := machar.o f77-extern.o f77-fcn.o lo-error.o quit.o @@ -60,3 +66,7 @@ pic/machar.o: $(srcdir)/machar.c $(XCC) -c $(CPPFLAGS) $(CPICFLAG) $(XALL_CFLAGS) -DDP $< -o $@ + +ifndef omit_deps +-include $(MAKEDEPS) +endif
--- a/libcruft/misc/f77-fcn.h +++ b/libcruft/misc/f77-fcn.h @@ -66,9 +66,9 @@ } \ else \ { \ - octave_interrupt_immediately++; \ + INCREMENT_OCTAVE_INTERRUPT_IMMEDIATELY; \ F77_FUNC (f, F) args; \ - octave_interrupt_immediately--; \ + DECREMENT_OCTAVE_INTERRUPT_IMMEDIATELY; \ octave_restore_current_context ((char *) saved_context); \ } \ } \
--- a/libcruft/misc/quit.h +++ b/libcruft/misc/quit.h @@ -81,6 +81,15 @@ #define OCTAVE_CATCH_INTERRUPTS catch (octave_interrupt_exception) +#define INCREMENT_OCTAVE_INTERRUPT_IMMEDIATELY \ + do { octave_interrupt_immediately++; } while (0) + +#define DECREMENT_OCTAVE_INTERRUPT_IMMEDIATELY \ + do { octave_interrupt_immediately--; } while (0) + +#define SET_OCTAVE_INTERRUPT_IMMEDIATELY(x) \ + do { octave_interrupt_immediately = x; } while (0) + #define BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE \ do \ { \ @@ -95,10 +104,10 @@ } \ else \ { \ - octave_interrupt_immediately++ + INCREMENT_OCTAVE_INTERRUPT_IMMEDIATELY #define END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE \ - octave_interrupt_immediately--; \ + DECREMENT_OCTAVE_INTERRUPT_IMMEDIATELY; \ octave_restore_current_context ((char *) saved_context); \ } \ } \ @@ -116,6 +125,10 @@ #define OCTAVE_CATCH_INTERRUPTS if (0) +#define INCREMENT_OCTAVE_INTERRUPT_IMMEDIATELY do { } while (0) + +#define DECREMENT_OCTAVE_INTERRUPT_IMMEDIATELY do { } while (0) + #define BEGIN_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE do { } while (0) #define END_INTERRUPT_IMMEDIATELY_IN_FOREIGN_CODE do { } while (0)
--- a/liboctave/DASPK.cc +++ b/liboctave/DASPK.cc @@ -35,6 +35,7 @@ #include "f77-fcn.h" #include "lo-error.h" #include "lo-sstream.h" +#include "quit.h" typedef int (*daspk_fcn_ptr) (const double&, const double*, const double*, const double&,
--- a/src/ChangeLog +++ b/src/ChangeLog @@ -1,3 +1,20 @@ +2002-11-07 John W. Eaton <jwe@bevo.che.wisc.edu> + + * cutils.c (octave_vsnprintf): Use portable_snprintf to avoid + having to cope with all kinds of buggy implementations. + + * snprintf.c: New file. + * Makefile.in (DISTFILES): Add it to the list. + + * oct-snprintf.h: New file. + * Makefile.in (INCLUDES): Add it to the list. + + * oct-snprintf.c: New file. + * Makefile.in (DIST_SRC): Add it to the list. + + * toplev.cc (main_loop): Use SET_OCTAVE_INTERRUPT_IMMEDIATELY + instead of assigning octave_interrupt_immediately. + 2002-11-06 John W. Eaton <jwe@bevo.che.wisc.edu> * utils.cc (jump_to_top_level): Delete.
--- a/src/Makefile.in +++ b/src/Makefile.in @@ -84,10 +84,10 @@ defun-int.h defun.h dirfns.h dynamic-ld.h error.h file-io.h \ fn-cache.h gripes.h help.h input.h lex.h load-save.h \ oct-fstrm.h oct-hist.h oct-iostrm.h oct-map.h oct-obj.h \ - oct-prcstrm.h oct-procbuf.h oct-stdstrm.h oct-stream.h \ - oct-strstrm.h oct-lvalue.h oct.h octave.h ops.h pager.h parse.h \ - pr-output.h procstream.h sighandlers.h siglist.h symtab.h \ - sysdep.h token.h toplev.h unwind-prot.h utils.h \ + oct-prcstrm.h oct-procbuf.h oct-snprintf.h oct-stdstrm.h \ + oct-stream.h oct-strstrm.h oct-lvalue.h oct.h octave.h \ + ops.h pager.h parse.h pr-output.h procstream.h sighandlers.h \ + siglist.h symtab.h sysdep.h token.h toplev.h unwind-prot.h utils.h \ variables.h version.h xdiv.h xpow.h $(OV_INCLUDES) $(PT_INCLUDES) TI_XSRC := Array-oc.cc Array-os.cc Array-sym.cc Array-tc.cc Map-fnc.cc \ @@ -131,8 +131,9 @@ help.cc input.cc lex.l load-save.cc main.c mappers.cc \ matherr.c oct-fstrm.cc oct-hist.cc oct-iostrm.cc \ oct-map.cc oct-obj.cc oct-prcstrm.cc oct-procbuf.cc \ - oct-stdstrm.cc oct-stream.cc oct-strstrm.cc oct-lvalue.cc \ - pager.cc parse.y pr-output.cc procstream.cc sighandlers.cc \ + oct-snprintf.c oct-stdstrm.cc oct-stream.cc \ + oct-strstrm.cc oct-lvalue.cc pager.cc parse.y \ + pr-output.cc procstream.cc sighandlers.cc \ siglist.c strcasecmp.c strncase.c strfns.cc symtab.cc \ syscalls.cc sysdep.cc system.c token.cc toplev.cc \ unwind-prot.cc utils.cc variables.cc xdiv.cc xpow.cc \ @@ -210,7 +211,7 @@ DISTFILES = Makefile.in ChangeLog mkdefs mkops mkgendoc \ DOCSTRINGS mkbuiltins mk-oct-links \ defaults.h.in oct-conf.h.in octave.gperf oct-gperf.h \ - octave.cc parse.cc lex.cc y.tab.h \ + octave.cc parse.cc lex.cc y.tab.h snprintf.c \ $(INCLUDES) $(DIST_SRC) $(OPT_HANDLERS) ifeq ($(SHARED_LIBS), true)
--- a/src/cutils.c +++ b/src/cutils.c @@ -52,6 +52,8 @@ #endif +#include "oct-snprintf.h" + void octave_sleep (unsigned int seconds) { @@ -122,14 +124,9 @@ // We manage storage. User should not free it, and its contents are // only valid until next call to vsnprintf. -#if defined __GNUC__ && __GNUC__ >= 3 -#define HAVE_C99_VSNPRINTF 1 -#endif - char * octave_vsnprintf (const char *fmt, va_list args) { -#if defined (HAVE_VSNPRINTF) static size_t size = 100; static char *buf = 0; @@ -139,9 +136,7 @@ if (! buf) buf = malloc (size); -#if defined (HAVE_C99_VSNPRINTF) - - nchars = vsnprintf (buf, size, fmt, args); + nchars = portable_vsnprintf (buf, size, fmt, args); if (nchars >= size) { @@ -153,31 +148,6 @@ return buf; } - -#else - - while (1) - { - nchars = vsnprintf (buf, size, fmt, args); - - if (nchars > -1) - return buf; - else - { - size *= 2; - - buf = realloc (buf, size); - - if (! buf) - return 0; - } - } - -#endif - -#else - return 0; -#endif } char *
new file mode 100644 --- /dev/null +++ b/src/oct-snprintf.c @@ -0,0 +1,18 @@ +/* Compiling snprintf.c with these two symbols defined will create an + object with portable_snprintf and portable_vsnprintf defined. */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#if ! defined HAVE_SNPRINTF +#define HAVE_SNPRINTF 1 +#endif + +#if ! defined PREFER_PORTABLE_SNPRINTF +#define PREFER_PORTABLE_SNPRINTF 1 +#endif + +#include "oct-snprintf.h" + +#include "snprintf.c"
new file mode 100644 --- /dev/null +++ b/src/oct-snprintf.h @@ -0,0 +1,10 @@ +#if defined (HAVE_SYS_TYPES_H) +#include <sys/types.h> +#endif +#include <stdarg.h> + +extern int +portable_snprintf (char *str, size_t str_m, const char *fmt, ...); + +extern int +portable_vsnprintf (char *str, size_t str_m, const char *fmt, va_list ap);
new file mode 100644 --- /dev/null +++ b/src/snprintf.c @@ -0,0 +1,1025 @@ +/* + * snprintf.c - a portable implementation of snprintf + * + * AUTHOR + * Mark Martinec <mark.martinec@ijs.si>, April 1999. + * + * Copyright 1999, Mark Martinec. All rights reserved. + * + * TERMS AND CONDITIONS + * This program is free software; you can redistribute it and/or modify + * it under the terms of the "Frontier Artistic License" which comes + * with this Kit. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + * See the Frontier Artistic License for more details. + * + * You should have received a copy of the Frontier Artistic License + * with this Kit in the file named LICENSE.txt . + * If not, I'll be glad to provide one. + * + * FEATURES + * - careful adherence to specs regarding flags, field width and precision; + * - good performance for large string handling (large format, large + * argument or large paddings). Performance is similar to system's sprintf + * and in several cases significantly better (make sure you compile with + * optimizations turned on, tell the compiler the code is strict ANSI + * if necessary to give it more freedom for optimizations); + * - return value semantics per ISO/IEC 9899:1999 ("ISO C99"); + * - written in standard ISO/ANSI C - requires an ANSI C compiler. + * + * SUPPORTED CONVERSION SPECIFIERS AND DATA TYPES + * + * This snprintf only supports the following conversion specifiers: + * s, c, d, u, o, x, X, p (and synonyms: i, D, U, O - see below) + * with flags: '-', '+', ' ', '0' and '#'. + * An asterisk is supported for field width as well as precision. + * + * Length modifiers 'h' (short int), 'l' (long int), + * and 'll' (long long int) are supported. + * NOTE: + * If macro SNPRINTF_LONGLONG_SUPPORT is not defined (default) the + * length modifier 'll' is recognized but treated the same as 'l', + * which may cause argument value truncation! Defining + * SNPRINTF_LONGLONG_SUPPORT requires that your system's sprintf also + * handles length modifier 'll'. long long int is a language extension + * which may not be portable. + * + * Conversion of numeric data (conversion specifiers d, u, o, x, X, p) + * with length modifiers (none or h, l, ll) is left to the system routine + * sprintf, but all handling of flags, field width and precision as well as + * c and s conversions is done very carefully by this portable routine. + * If a string precision (truncation) is specified (e.g. %.8s) it is + * guaranteed the string beyond the specified precision will not be referenced. + * + * Length modifiers h, l and ll are ignored for c and s conversions (data + * types wint_t and wchar_t are not supported). + * + * The following common synonyms for conversion characters are supported: + * - i is a synonym for d + * - D is a synonym for ld, explicit length modifiers are ignored + * - U is a synonym for lu, explicit length modifiers are ignored + * - O is a synonym for lo, explicit length modifiers are ignored + * The D, O and U conversion characters are nonstandard, they are supported + * for backward compatibility only, and should not be used for new code. + * + * The following is specifically NOT supported: + * - flag ' (thousands' grouping character) is recognized but ignored + * - numeric conversion specifiers: f, e, E, g, G and synonym F, + * as well as the new a and A conversion specifiers + * - length modifier 'L' (long double) and 'q' (quad - use 'll' instead) + * - wide character/string conversions: lc, ls, and nonstandard + * synonyms C and S + * - writeback of converted string length: conversion character n + * - the n$ specification for direct reference to n-th argument + * - locales + * + * It is permitted for str_m to be zero, and it is permitted to specify NULL + * pointer for resulting string argument if str_m is zero (as per ISO C99). + * + * The return value is the number of characters which would be generated + * for the given input, excluding the trailing null. If this value + * is greater or equal to str_m, not all characters from the result + * have been stored in str, output bytes beyond the (str_m-1) -th character + * are discarded. If str_m is greater than zero it is guaranteed + * the resulting string will be null-terminated. + * + * NOTE that this matches the ISO C99, OpenBSD, and GNU C library 2.1, + * but is different from some older and vendor implementations, + * and is also different from XPG, XSH5, SUSv2 specifications. + * For historical discussion on changes in the semantics and standards + * of snprintf see printf(3) man page in the Linux programmers manual. + * + * Routines asprintf and vasprintf return a pointer (in the ptr argument) + * to a buffer sufficiently large to hold the resulting string. This pointer + * should be passed to free(3) to release the allocated storage when it is + * no longer needed. If sufficient space cannot be allocated, these functions + * will return -1 and set ptr to be a NULL pointer. These two routines are a + * GNU C library extensions (glibc). + * + * Routines asnprintf and vasnprintf are similar to asprintf and vasprintf, + * yet, like snprintf and vsnprintf counterparts, will write at most str_m-1 + * characters into the allocated output string, the last character in the + * allocated buffer then gets the terminating null. If the formatted string + * length (the return value) is greater than or equal to the str_m argument, + * the resulting string was truncated and some of the formatted characters + * were discarded. These routines present a handy way to limit the amount + * of allocated memory to some sane value. + * + * AVAILABILITY + * http://www.ijs.si/software/snprintf/ + * + * REVISION HISTORY + * 1999-04 V0.9 Mark Martinec + * - initial version, some modifications after comparing printf + * man pages for Digital Unix 4.0, Solaris 2.6 and HPUX 10, + * and checking how Perl handles sprintf (differently!); + * 1999-04-09 V1.0 Mark Martinec <mark.martinec@ijs.si> + * - added main test program, fixed remaining inconsistencies, + * added optional (long long int) support; + * 1999-04-12 V1.1 Mark Martinec <mark.martinec@ijs.si> + * - support the 'p' conversion (pointer to void); + * - if a string precision is specified + * make sure the string beyond the specified precision + * will not be referenced (e.g. by strlen); + * 1999-04-13 V1.2 Mark Martinec <mark.martinec@ijs.si> + * - support synonyms %D=%ld, %U=%lu, %O=%lo; + * - speed up the case of long format string with few conversions; + * 1999-06-30 V1.3 Mark Martinec <mark.martinec@ijs.si> + * - fixed runaway loop (eventually crashing when str_l wraps + * beyond 2^31) while copying format string without + * conversion specifiers to a buffer that is too short + * (thanks to Edwin Young <edwiny@autonomy.com> for + * spotting the problem); + * - added macros PORTABLE_SNPRINTF_VERSION_(MAJOR|MINOR) + * to snprintf.h + * 2000-02-14 V2.0 (never released) Mark Martinec <mark.martinec@ijs.si> + * - relaxed license terms: The Artistic License now applies. + * You may still apply the GNU GENERAL PUBLIC LICENSE + * as was distributed with previous versions, if you prefer; + * - changed REVISION HISTORY dates to use ISO 8601 date format; + * - added vsnprintf (patch also independently proposed by + * Caolan McNamara 2000-05-04, and Keith M Willenson 2000-06-01) + * 2000-06-27 V2.1 Mark Martinec <mark.martinec@ijs.si> + * - removed POSIX check for str_m<1; value 0 for str_m is + * allowed by ISO C99 (and GNU C library 2.1) - (pointed out + * on 2000-05-04 by Caolan McNamara, caolan@ csn dot ul dot ie). + * Besides relaxed license this change in standards adherence + * is the main reason to bump up the major version number; + * - added nonstandard routines asnprintf, vasnprintf, asprintf, + * vasprintf that dynamically allocate storage for the + * resulting string; these routines are not compiled by default, + * see comments where NEED_V?ASN?PRINTF macros are defined; + * - autoconf contributed by Caolan McNamara + * 2000-10-06 V2.2 Mark Martinec <mark.martinec@ijs.si> + * - BUG FIX: the %c conversion used a temporary variable + * that was no longer in scope when referenced, + * possibly causing incorrect resulting character; + * - BUG FIX: make precision and minimal field width unsigned + * to handle huge values (2^31 <= n < 2^32) correctly; + * also be more careful in the use of signed/unsigned/size_t + * internal variables - probably more careful than many + * vendor implementations, but there may still be a case + * where huge values of str_m, precision or minimal field + * could cause incorrect behaviour; + * - use separate variables for signed/unsigned arguments, + * and for short/int, long, and long long argument lengths + * to avoid possible incompatibilities on certain + * computer architectures. Also use separate variable + * arg_sign to hold sign of a numeric argument, + * to make code more transparent; + * - some fiddling with zero padding and "0x" to make it + * Linux compatible; + * - systematically use macros fast_memcpy and fast_memset + * instead of case-by-case hand optimization; determine some + * breakeven string lengths for different architectures; + * - terminology change: 'format' -> 'conversion specifier', + * 'C9x' -> 'ISO/IEC 9899:1999 ("ISO C99")', + * 'alternative form' -> 'alternate form', + * 'data type modifier' -> 'length modifier'; + * - several comments rephrased and new ones added; + * - make compiler not complain about 'credits' defined but + * not used; + */ + + +/* Define HAVE_SNPRINTF if your system already has snprintf and vsnprintf. + * + * If HAVE_SNPRINTF is defined this module will not produce code for + * snprintf and vsnprintf, unless PREFER_PORTABLE_SNPRINTF is defined as well, + * causing this portable version of snprintf to be called portable_snprintf + * (and portable_vsnprintf). + */ +/* #define HAVE_SNPRINTF */ + +/* Define PREFER_PORTABLE_SNPRINTF if your system does have snprintf and + * vsnprintf but you would prefer to use the portable routine(s) instead. + * In this case the portable routine is declared as portable_snprintf + * (and portable_vsnprintf) and a macro 'snprintf' (and 'vsnprintf') + * is defined to expand to 'portable_v?snprintf' - see file snprintf.h . + * Defining this macro is only useful if HAVE_SNPRINTF is also defined, + * but does does no harm if defined nevertheless. + */ +/* #define PREFER_PORTABLE_SNPRINTF */ + +/* Define SNPRINTF_LONGLONG_SUPPORT if you want to support + * data type (long long int) and length modifier 'll' (e.g. %lld). + * If undefined, 'll' is recognized but treated as a single 'l'. + * + * If the system's sprintf does not handle 'll' + * the SNPRINTF_LONGLONG_SUPPORT must not be defined! + * + * This is off by default as (long long int) is a language extension. + */ +/* #define SNPRINTF_LONGLONG_SUPPORT */ + +/* Define NEED_SNPRINTF_ONLY if you only need snprintf, and not vsnprintf. + * If NEED_SNPRINTF_ONLY is defined, the snprintf will be defined directly, + * otherwise both snprintf and vsnprintf routines will be defined + * and snprintf will be a simple wrapper around vsnprintf, at the expense + * of an extra procedure call. + */ +/* #define NEED_SNPRINTF_ONLY */ + +/* Define NEED_V?ASN?PRINTF macros if you need library extension + * routines asprintf, vasprintf, asnprintf, vasnprintf respectively, + * and your system library does not provide them. They are all small + * wrapper routines around portable_vsnprintf. Defining any of the four + * NEED_V?ASN?PRINTF macros automatically turns off NEED_SNPRINTF_ONLY + * and turns on PREFER_PORTABLE_SNPRINTF. + * + * Watch for name conflicts with the system library if these routines + * are already present there. + * + * NOTE: vasprintf and vasnprintf routines need va_copy() from stdarg.h, as + * specified by C99, to be able to traverse the same list of arguments twice. + * I don't know of any other standard and portable way of achieving the same. + * With some versions of gcc you may use __va_copy(). You might even get away + * with "ap2 = ap", in this case you must not call va_end(ap2) ! + * #define va_copy(ap2,ap) ap2 = ap + */ +/* #define NEED_ASPRINTF */ +/* #define NEED_ASNPRINTF */ +/* #define NEED_VASPRINTF */ +/* #define NEED_VASNPRINTF */ + + +/* Define the following macros if desired: + * SOLARIS_COMPATIBLE, SOLARIS_BUG_COMPATIBLE, + * HPUX_COMPATIBLE, HPUX_BUG_COMPATIBLE, LINUX_COMPATIBLE, + * DIGITAL_UNIX_COMPATIBLE, DIGITAL_UNIX_BUG_COMPATIBLE, + * PERL_COMPATIBLE, PERL_BUG_COMPATIBLE, + * + * - For portable applications it is best not to rely on peculiarities + * of a given implementation so it may be best not to define any + * of the macros that select compatibility and to avoid features + * that vary among the systems. + * + * - Selecting compatibility with more than one operating system + * is not strictly forbidden but is not recommended. + * + * - 'x'_BUG_COMPATIBLE implies 'x'_COMPATIBLE . + * + * - 'x'_COMPATIBLE refers to (and enables) a behaviour that is + * documented in a sprintf man page on a given operating system + * and actually adhered to by the system's sprintf (but not on + * most other operating systems). It may also refer to and enable + * a behaviour that is declared 'undefined' or 'implementation specific' + * in the man page but a given implementation behaves predictably + * in a certain way. + * + * - 'x'_BUG_COMPATIBLE refers to (and enables) a behaviour of system's sprintf + * that contradicts the sprintf man page on the same operating system. + * + * - I do not claim that the 'x'_COMPATIBLE and 'x'_BUG_COMPATIBLE + * conditionals take into account all idiosyncrasies of a particular + * implementation, there may be other incompatibilities. + */ + + + +/* ============================================= */ +/* NO USER SERVICABLE PARTS FOLLOWING THIS POINT */ +/* ============================================= */ + +#define PORTABLE_SNPRINTF_VERSION_MAJOR 2 +#define PORTABLE_SNPRINTF_VERSION_MINOR 2 + +#if defined(NEED_ASPRINTF) || defined(NEED_ASNPRINTF) || defined(NEED_VASPRINTF) || defined(NEED_VASNPRINTF) +# if defined(NEED_SNPRINTF_ONLY) +# undef NEED_SNPRINTF_ONLY +# endif +# if !defined(PREFER_PORTABLE_SNPRINTF) +# define PREFER_PORTABLE_SNPRINTF +# endif +#endif + +#if defined(SOLARIS_BUG_COMPATIBLE) && !defined(SOLARIS_COMPATIBLE) +#define SOLARIS_COMPATIBLE +#endif + +#if defined(HPUX_BUG_COMPATIBLE) && !defined(HPUX_COMPATIBLE) +#define HPUX_COMPATIBLE +#endif + +#if defined(DIGITAL_UNIX_BUG_COMPATIBLE) && !defined(DIGITAL_UNIX_COMPATIBLE) +#define DIGITAL_UNIX_COMPATIBLE +#endif + +#if defined(PERL_BUG_COMPATIBLE) && !defined(PERL_COMPATIBLE) +#define PERL_COMPATIBLE +#endif + +#if defined(LINUX_BUG_COMPATIBLE) && !defined(LINUX_COMPATIBLE) +#define LINUX_COMPATIBLE +#endif + +#include <sys/types.h> +#include <string.h> +#include <stdlib.h> +#include <stdio.h> +#include <stdarg.h> +#include <assert.h> +#include <errno.h> + +#ifdef isdigit +#undef isdigit +#endif +#define isdigit(c) ((c) >= '0' && (c) <= '9') + +/* For copying strings longer or equal to 'breakeven_point' + * it is more efficient to call memcpy() than to do it inline. + * The value depends mostly on the processor architecture, + * but also on the compiler and its optimization capabilities. + * The value is not critical, some small value greater than zero + * will be just fine if you don't care to squeeze every drop + * of performance out of the code. + * + * Small values favor memcpy, large values favor inline code. + */ +#if defined(__alpha__) || defined(__alpha) +# define breakeven_point 2 /* AXP (DEC Alpha) - gcc or cc or egcs */ +#endif +#if defined(__i386__) || defined(__i386) +# define breakeven_point 12 /* Intel Pentium/Linux - gcc 2.96 */ +#endif +#if defined(__hppa) +# define breakeven_point 10 /* HP-PA - gcc */ +#endif +#if defined(__sparc__) || defined(__sparc) +# define breakeven_point 33 /* Sun Sparc 5 - gcc 2.8.1 */ +#endif + +/* some other values of possible interest: */ +/* #define breakeven_point 8 */ /* VAX 4000 - vaxc */ +/* #define breakeven_point 19 */ /* VAX 4000 - gcc 2.7.0 */ + +#ifndef breakeven_point +# define breakeven_point 6 /* some reasonable one-size-fits-all value */ +#endif + +#define fast_memcpy(d,s,n) \ + { register size_t nn = (size_t)(n); \ + if (nn >= breakeven_point) memcpy((d), (s), nn); \ + else if (nn > 0) { /* proc call overhead is worth only for large strings*/\ + register char *dd; register const char *ss; \ + for (ss=(s), dd=(d); nn>0; nn--) *dd++ = *ss++; } } + +#define fast_memset(d,c,n) \ + { register size_t nn = (size_t)(n); \ + if (nn >= breakeven_point) memset((d), (int)(c), nn); \ + else if (nn > 0) { /* proc call overhead is worth only for large strings*/\ + register char *dd; register const int cc=(int)(c); \ + for (dd=(d); nn>0; nn--) *dd++ = cc; } } + +/* prototypes */ + +#if defined(NEED_ASPRINTF) +int asprintf (char **ptr, const char *fmt, /*args*/ ...); +#endif +#if defined(NEED_VASPRINTF) +int vasprintf (char **ptr, const char *fmt, va_list ap); +#endif +#if defined(NEED_ASNPRINTF) +int asnprintf (char **ptr, size_t str_m, const char *fmt, /*args*/ ...); +#endif +#if defined(NEED_VASNPRINTF) +int vasnprintf (char **ptr, size_t str_m, const char *fmt, va_list ap); +#endif + +#if defined(HAVE_SNPRINTF) +/* declare our portable snprintf routine under name portable_snprintf */ +/* declare our portable vsnprintf routine under name portable_vsnprintf */ +#else +/* declare our portable routines under names snprintf and vsnprintf */ +#define portable_snprintf snprintf +#if !defined(NEED_SNPRINTF_ONLY) +#define portable_vsnprintf vsnprintf +#endif +#endif + +#if !defined(HAVE_SNPRINTF) || defined(PREFER_PORTABLE_SNPRINTF) +int portable_snprintf(char *str, size_t str_m, const char *fmt, /*args*/ ...); +#if !defined(NEED_SNPRINTF_ONLY) +int portable_vsnprintf(char *str, size_t str_m, const char *fmt, va_list ap); +#endif +#endif + +/* declarations */ + +static char credits[] = "\n\ +@(#)snprintf.c, v2.2: Mark Martinec, <mark.martinec@ijs.si>\n\ +@(#)snprintf.c, v2.2: Copyright 1999, Mark Martinec. Frontier Artistic License applies.\n\ +@(#)snprintf.c, v2.2: http://www.ijs.si/software/snprintf/\n"; + +#if defined(NEED_ASPRINTF) +int asprintf(char **ptr, const char *fmt, /*args*/ ...) { + va_list ap; + size_t str_m; + int str_l; + + *ptr = NULL; + va_start(ap, fmt); /* measure the required size */ + str_l = portable_vsnprintf(NULL, (size_t)0, fmt, ap); + va_end(ap); + assert(str_l >= 0); /* possible integer overflow if str_m > INT_MAX */ + *ptr = (char *) malloc(str_m = (size_t)str_l + 1); + if (*ptr == NULL) { errno = ENOMEM; str_l = -1; } + else { + int str_l2; + va_start(ap, fmt); + str_l2 = portable_vsnprintf(*ptr, str_m, fmt, ap); + va_end(ap); + assert(str_l2 == str_l); + } + return str_l; +} +#endif + +#if defined(NEED_VASPRINTF) +int vasprintf(char **ptr, const char *fmt, va_list ap) { + size_t str_m; + int str_l; + + *ptr = NULL; + { va_list ap2; + va_copy(ap2, ap); /* don't consume the original ap, we'll need it again */ + str_l = portable_vsnprintf(NULL, (size_t)0, fmt, ap2);/*get required size*/ + va_end(ap2); + } + assert(str_l >= 0); /* possible integer overflow if str_m > INT_MAX */ + *ptr = (char *) malloc(str_m = (size_t)str_l + 1); + if (*ptr == NULL) { errno = ENOMEM; str_l = -1; } + else { + int str_l2 = portable_vsnprintf(*ptr, str_m, fmt, ap); + assert(str_l2 == str_l); + } + return str_l; +} +#endif + +#if defined(NEED_ASNPRINTF) +int asnprintf (char **ptr, size_t str_m, const char *fmt, /*args*/ ...) { + va_list ap; + int str_l; + + *ptr = NULL; + va_start(ap, fmt); /* measure the required size */ + str_l = portable_vsnprintf(NULL, (size_t)0, fmt, ap); + va_end(ap); + assert(str_l >= 0); /* possible integer overflow if str_m > INT_MAX */ + if ((size_t)str_l + 1 < str_m) str_m = (size_t)str_l + 1; /* truncate */ + /* if str_m is 0, no buffer is allocated, just set *ptr to NULL */ + if (str_m == 0) { /* not interested in resulting string, just return size */ + } else { + *ptr = (char *) malloc(str_m); + if (*ptr == NULL) { errno = ENOMEM; str_l = -1; } + else { + int str_l2; + va_start(ap, fmt); + str_l2 = portable_vsnprintf(*ptr, str_m, fmt, ap); + va_end(ap); + assert(str_l2 == str_l); + } + } + return str_l; +} +#endif + +#if defined(NEED_VASNPRINTF) +int vasnprintf (char **ptr, size_t str_m, const char *fmt, va_list ap) { + int str_l; + + *ptr = NULL; + { va_list ap2; + va_copy(ap2, ap); /* don't consume the original ap, we'll need it again */ + str_l = portable_vsnprintf(NULL, (size_t)0, fmt, ap2);/*get required size*/ + va_end(ap2); + } + assert(str_l >= 0); /* possible integer overflow if str_m > INT_MAX */ + if ((size_t)str_l + 1 < str_m) str_m = (size_t)str_l + 1; /* truncate */ + /* if str_m is 0, no buffer is allocated, just set *ptr to NULL */ + if (str_m == 0) { /* not interested in resulting string, just return size */ + } else { + *ptr = (char *) malloc(str_m); + if (*ptr == NULL) { errno = ENOMEM; str_l = -1; } + else { + int str_l2 = portable_vsnprintf(*ptr, str_m, fmt, ap); + assert(str_l2 == str_l); + } + } + return str_l; +} +#endif + +/* + * If the system does have snprintf and the portable routine is not + * specifically required, this module produces no code for snprintf/vsnprintf. + */ +#if !defined(HAVE_SNPRINTF) || defined(PREFER_PORTABLE_SNPRINTF) + +#if !defined(NEED_SNPRINTF_ONLY) +int portable_snprintf(char *str, size_t str_m, const char *fmt, /*args*/ ...) { + va_list ap; + int str_l; + + va_start(ap, fmt); + str_l = portable_vsnprintf(str, str_m, fmt, ap); + va_end(ap); + return str_l; +} +#endif + +#if defined(NEED_SNPRINTF_ONLY) +int portable_snprintf(char *str, size_t str_m, const char *fmt, /*args*/ ...) { +#else +int portable_vsnprintf(char *str, size_t str_m, const char *fmt, va_list ap) { +#endif + +#if defined(NEED_SNPRINTF_ONLY) + va_list ap; +#endif + size_t str_l = 0; + const char *p = fmt; + +/* In contrast with POSIX, the ISO C99 now says + * that str can be NULL and str_m can be 0. + * This is more useful than the old: if (str_m < 1) return -1; */ + +#if defined(NEED_SNPRINTF_ONLY) + va_start(ap, fmt); +#endif + if (!p) p = ""; + while (*p) { + if (*p != '%') { + /* if (str_l < str_m) str[str_l++] = *p++; -- this would be sufficient */ + /* but the following code achieves better performance for cases + * where format string is long and contains few conversions */ + const char *q = strchr(p+1,'%'); + size_t n = !q ? strlen(p) : (q-p); + if (str_l < str_m) { + size_t avail = str_m-str_l; + fast_memcpy(str+str_l, p, (n>avail?avail:n)); + } + p += n; str_l += n; + } else { + const char *starting_p; + size_t min_field_width = 0, precision = 0; + int zero_padding = 0, precision_specified = 0, justify_left = 0; + int alternate_form = 0, force_sign = 0; + int space_for_positive = 1; /* If both the ' ' and '+' flags appear, + the ' ' flag should be ignored. */ + char length_modifier = '\0'; /* allowed values: \0, h, l, L */ + char tmp[32];/* temporary buffer for simple numeric->string conversion */ + + const char *str_arg; /* string address in case of string argument */ + size_t str_arg_l; /* natural field width of arg without padding + and sign */ + unsigned char uchar_arg; + /* unsigned char argument value - only defined for c conversion. + N.B. standard explicitly states the char argument for + the c conversion is unsigned */ + + size_t number_of_zeros_to_pad = 0; + /* number of zeros to be inserted for numeric conversions + as required by the precision or minimal field width */ + + size_t zero_padding_insertion_ind = 0; + /* index into tmp where zero padding is to be inserted */ + + char fmt_spec = '\0'; + /* current conversion specifier character */ + + str_arg = credits;/* just to make compiler happy (defined but not used)*/ + str_arg = NULL; + starting_p = p; p++; /* skip '%' */ + /* parse flags */ + while (*p == '0' || *p == '-' || *p == '+' || + *p == ' ' || *p == '#' || *p == '\'') { + switch (*p) { + case '0': zero_padding = 1; break; + case '-': justify_left = 1; break; + case '+': force_sign = 1; space_for_positive = 0; break; + case ' ': force_sign = 1; + /* If both the ' ' and '+' flags appear, the ' ' flag should be ignored */ +#ifdef PERL_COMPATIBLE + /* ... but in Perl the last of ' ' and '+' applies */ + space_for_positive = 1; +#endif + break; + case '#': alternate_form = 1; break; + case '\'': break; + } + p++; + } + /* If the '0' and '-' flags both appear, the '0' flag should be ignored. */ + + /* parse field width */ + if (*p == '*') { + int j; + p++; j = va_arg(ap, int); + if (j >= 0) min_field_width = j; + else { min_field_width = -j; justify_left = 1; } + } else if (isdigit((int)(*p))) { + /* size_t could be wider than unsigned int; + make sure we treat argument like common implementations do */ + unsigned int uj = *p++ - '0'; + while (isdigit((int)(*p))) uj = 10*uj + (unsigned int)(*p++ - '0'); + min_field_width = uj; + } + /* parse precision */ + if (*p == '.') { + p++; precision_specified = 1; + if (*p == '*') { + int j = va_arg(ap, int); + p++; + if (j >= 0) precision = j; + else { + precision_specified = 0; precision = 0; + /* NOTE: + * Solaris 2.6 man page claims that in this case the precision + * should be set to 0. Digital Unix 4.0, HPUX 10 and BSD man page + * claim that this case should be treated as unspecified precision, + * which is what we do here. + */ + } + } else if (isdigit((int)(*p))) { + /* size_t could be wider than unsigned int; + make sure we treat argument like common implementations do */ + unsigned int uj = *p++ - '0'; + while (isdigit((int)(*p))) uj = 10*uj + (unsigned int)(*p++ - '0'); + precision = uj; + } + } + /* parse 'h', 'l' and 'll' length modifiers */ + if (*p == 'h' || *p == 'l') { + length_modifier = *p; p++; + if (length_modifier == 'l' && *p == 'l') { /* double l = long long */ +#ifdef SNPRINTF_LONGLONG_SUPPORT + length_modifier = '2'; /* double l encoded as '2' */ +#else + length_modifier = 'l'; /* treat it as a single 'l' */ +#endif + p++; + } + } + fmt_spec = *p; + /* common synonyms: */ + switch (fmt_spec) { + case 'i': fmt_spec = 'd'; break; + case 'D': fmt_spec = 'd'; length_modifier = 'l'; break; + case 'U': fmt_spec = 'u'; length_modifier = 'l'; break; + case 'O': fmt_spec = 'o'; length_modifier = 'l'; break; + default: break; + } + /* get parameter value, do initial processing */ + switch (fmt_spec) { + case '%': /* % behaves similar to 's' regarding flags and field widths */ + case 'c': /* c behaves similar to 's' regarding flags and field widths */ + case 's': + length_modifier = '\0'; /* wint_t and wchar_t not supported */ + /* the result of zero padding flag with non-numeric conversion specifier*/ + /* is undefined. Solaris and HPUX 10 does zero padding in this case, */ + /* Digital Unix and Linux does not. */ +#if !defined(SOLARIS_COMPATIBLE) && !defined(HPUX_COMPATIBLE) + zero_padding = 0; /* turn zero padding off for string conversions */ +#endif + str_arg_l = 1; + switch (fmt_spec) { + case '%': + str_arg = p; break; + case 'c': { + int j = va_arg(ap, int); + uchar_arg = (unsigned char) j; /* standard demands unsigned char */ + str_arg = (const char *) &uchar_arg; + break; + } + case 's': + str_arg = va_arg(ap, const char *); + if (!str_arg) str_arg_l = 0; + /* make sure not to address string beyond the specified precision !!! */ + else if (!precision_specified) str_arg_l = strlen(str_arg); + /* truncate string if necessary as requested by precision */ + else if (precision == 0) str_arg_l = 0; + else { + /* memchr on HP does not like n > 2^31 !!! */ + const char *q = memchr(str_arg, '\0', + precision <= 0x7fffffff ? precision : 0x7fffffff); + str_arg_l = !q ? precision : (q-str_arg); + } + break; + default: break; + } + break; + case 'd': case 'u': case 'o': case 'x': case 'X': case 'p': { + /* NOTE: the u, o, x, X and p conversion specifiers imply + the value is unsigned; d implies a signed value */ + + int arg_sign = 0; + /* 0 if numeric argument is zero (or if pointer is NULL for 'p'), + +1 if greater than zero (or nonzero for unsigned arguments), + -1 if negative (unsigned argument is never negative) */ + + int int_arg = 0; unsigned int uint_arg = 0; + /* only defined for length modifier h, or for no length modifiers */ + + long int long_arg = 0; unsigned long int ulong_arg = 0; + /* only defined for length modifier l */ + + void *ptr_arg = NULL; + /* pointer argument value -only defined for p conversion */ + +#ifdef SNPRINTF_LONGLONG_SUPPORT + long long int long_long_arg = 0; + unsigned long long int ulong_long_arg = 0; + /* only defined for length modifier ll */ +#endif + if (fmt_spec == 'p') { + /* HPUX 10: An l, h, ll or L before any other conversion character + * (other than d, i, u, o, x, or X) is ignored. + * Digital Unix: + * not specified, but seems to behave as HPUX does. + * Solaris: If an h, l, or L appears before any other conversion + * specifier (other than d, i, u, o, x, or X), the behavior + * is undefined. (Actually %hp converts only 16-bits of address + * and %llp treats address as 64-bit data which is incompatible + * with (void *) argument on a 32-bit system). + */ +#ifdef SOLARIS_COMPATIBLE +# ifdef SOLARIS_BUG_COMPATIBLE + /* keep length modifiers even if it represents 'll' */ +# else + if (length_modifier == '2') length_modifier = '\0'; +# endif +#else + length_modifier = '\0'; +#endif + ptr_arg = va_arg(ap, void *); + if (ptr_arg != NULL) arg_sign = 1; + } else if (fmt_spec == 'd') { /* signed */ + switch (length_modifier) { + case '\0': + case 'h': + /* It is non-portable to specify a second argument of char or short + * to va_arg, because arguments seen by the called function + * are not char or short. C converts char and short arguments + * to int before passing them to a function. + */ + int_arg = va_arg(ap, int); + if (int_arg > 0) arg_sign = 1; + else if (int_arg < 0) arg_sign = -1; + break; + case 'l': + long_arg = va_arg(ap, long int); + if (long_arg > 0) arg_sign = 1; + else if (long_arg < 0) arg_sign = -1; + break; +#ifdef SNPRINTF_LONGLONG_SUPPORT + case '2': + long_long_arg = va_arg(ap, long long int); + if (long_long_arg > 0) arg_sign = 1; + else if (long_long_arg < 0) arg_sign = -1; + break; +#endif + } + } else { /* unsigned */ + switch (length_modifier) { + case '\0': + case 'h': + uint_arg = va_arg(ap, unsigned int); + if (uint_arg) arg_sign = 1; + break; + case 'l': + ulong_arg = va_arg(ap, unsigned long int); + if (ulong_arg) arg_sign = 1; + break; +#ifdef SNPRINTF_LONGLONG_SUPPORT + case '2': + ulong_long_arg = va_arg(ap, unsigned long long int); + if (ulong_long_arg) arg_sign = 1; + break; +#endif + } + } + str_arg = tmp; str_arg_l = 0; + /* NOTE: + * For d, i, u, o, x, and X conversions, if precision is specified, + * the '0' flag should be ignored. This is so with Solaris 2.6, + * Digital UNIX 4.0, HPUX 10, Linux, FreeBSD, NetBSD; but not with Perl. + */ +#ifndef PERL_COMPATIBLE + if (precision_specified) zero_padding = 0; +#endif + if (fmt_spec == 'd') { + if (force_sign && arg_sign >= 0) + tmp[str_arg_l++] = space_for_positive ? ' ' : '+'; + /* leave negative numbers for sprintf to handle, + to avoid handling tricky cases like (short int)(-32768) */ +#ifdef LINUX_COMPATIBLE + } else if (fmt_spec == 'p' && force_sign && arg_sign > 0) { + tmp[str_arg_l++] = space_for_positive ? ' ' : '+'; +#endif + } else if (alternate_form) { + if (arg_sign != 0 && (fmt_spec == 'x' || fmt_spec == 'X') ) + { tmp[str_arg_l++] = '0'; tmp[str_arg_l++] = fmt_spec; } + /* alternate form should have no effect for p conversion, but ... */ +#ifdef HPUX_COMPATIBLE + else if (fmt_spec == 'p' + /* HPUX 10: for an alternate form of p conversion, + * a nonzero result is prefixed by 0x. */ +#ifndef HPUX_BUG_COMPATIBLE + /* Actually it uses 0x prefix even for a zero value. */ + && arg_sign != 0 +#endif + ) { tmp[str_arg_l++] = '0'; tmp[str_arg_l++] = 'x'; } +#endif + } + zero_padding_insertion_ind = str_arg_l; + if (!precision_specified) precision = 1; /* default precision is 1 */ + if (precision == 0 && arg_sign == 0 +#if defined(HPUX_BUG_COMPATIBLE) || defined(LINUX_COMPATIBLE) + && fmt_spec != 'p' + /* HPUX 10 man page claims: With conversion character p the result of + * converting a zero value with a precision of zero is a null string. + * Actually HP returns all zeroes, and Linux returns "(nil)". */ +#endif + ) { + /* converted to null string */ + /* When zero value is formatted with an explicit precision 0, + the resulting formatted string is empty (d, i, u, o, x, X, p). */ + } else { + char f[5]; int f_l = 0; + f[f_l++] = '%'; /* construct a simple format string for sprintf */ + if (!length_modifier) { } + else if (length_modifier=='2') { f[f_l++] = 'l'; f[f_l++] = 'l'; } + else f[f_l++] = length_modifier; + f[f_l++] = fmt_spec; f[f_l++] = '\0'; + if (fmt_spec == 'p') str_arg_l += sprintf(tmp+str_arg_l, f, ptr_arg); + else if (fmt_spec == 'd') { /* signed */ + switch (length_modifier) { + case '\0': + case 'h': str_arg_l+=sprintf(tmp+str_arg_l, f, int_arg); break; + case 'l': str_arg_l+=sprintf(tmp+str_arg_l, f, long_arg); break; +#ifdef SNPRINTF_LONGLONG_SUPPORT + case '2': str_arg_l+=sprintf(tmp+str_arg_l,f,long_long_arg); break; +#endif + } + } else { /* unsigned */ + switch (length_modifier) { + case '\0': + case 'h': str_arg_l+=sprintf(tmp+str_arg_l, f, uint_arg); break; + case 'l': str_arg_l+=sprintf(tmp+str_arg_l, f, ulong_arg); break; +#ifdef SNPRINTF_LONGLONG_SUPPORT + case '2': str_arg_l+=sprintf(tmp+str_arg_l,f,ulong_long_arg);break; +#endif + } + } + /* include the optional minus sign and possible "0x" + in the region before the zero padding insertion point */ + if (zero_padding_insertion_ind < str_arg_l && + tmp[zero_padding_insertion_ind] == '-') { + zero_padding_insertion_ind++; + } + if (zero_padding_insertion_ind+1 < str_arg_l && + tmp[zero_padding_insertion_ind] == '0' && + (tmp[zero_padding_insertion_ind+1] == 'x' || + tmp[zero_padding_insertion_ind+1] == 'X') ) { + zero_padding_insertion_ind += 2; + } + } + { size_t num_of_digits = str_arg_l - zero_padding_insertion_ind; + if (alternate_form && fmt_spec == 'o' +#ifdef HPUX_COMPATIBLE /* ("%#.o",0) -> "" */ + && (str_arg_l > 0) +#endif +#ifdef DIGITAL_UNIX_BUG_COMPATIBLE /* ("%#o",0) -> "00" */ +#else + /* unless zero is already the first character */ + && !(zero_padding_insertion_ind < str_arg_l + && tmp[zero_padding_insertion_ind] == '0') +#endif + ) { /* assure leading zero for alternate-form octal numbers */ + if (!precision_specified || precision < num_of_digits+1) { + /* precision is increased to force the first character to be zero, + except if a zero value is formatted with an explicit precision + of zero */ + precision = num_of_digits+1; precision_specified = 1; + } + } + /* zero padding to specified precision? */ + if (num_of_digits < precision) + number_of_zeros_to_pad = precision - num_of_digits; + } + /* zero padding to specified minimal field width? */ + if (!justify_left && zero_padding) { + int n = min_field_width - (str_arg_l+number_of_zeros_to_pad); + if (n > 0) number_of_zeros_to_pad += n; + } + break; + } + default: /* unrecognized conversion specifier, keep format string as-is*/ + zero_padding = 0; /* turn zero padding off for non-numeric convers. */ +#ifndef DIGITAL_UNIX_COMPATIBLE + justify_left = 1; min_field_width = 0; /* reset flags */ +#endif +#if defined(PERL_COMPATIBLE) || defined(LINUX_COMPATIBLE) + /* keep the entire format string unchanged */ + str_arg = starting_p; str_arg_l = p - starting_p; + /* well, not exactly so for Linux, which does something inbetween, + * and I don't feel an urge to imitate it: "%+++++hy" -> "%+y" */ +#else + /* discard the unrecognized conversion, just keep * + * the unrecognized conversion character */ + str_arg = p; str_arg_l = 0; +#endif + if (*p) str_arg_l++; /* include invalid conversion specifier unchanged + if not at end-of-string */ + break; + } + if (*p) p++; /* step over the just processed conversion specifier */ + /* insert padding to the left as requested by min_field_width; + this does not include the zero padding in case of numerical conversions*/ + if (!justify_left) { /* left padding with blank or zero */ + int n = min_field_width - (str_arg_l+number_of_zeros_to_pad); + if (n > 0) { + if (str_l < str_m) { + size_t avail = str_m-str_l; + fast_memset(str+str_l, (zero_padding?'0':' '), (n>avail?avail:n)); + } + str_l += n; + } + } + /* zero padding as requested by the precision or by the minimal field width + * for numeric conversions required? */ + if (number_of_zeros_to_pad <= 0) { + /* will not copy first part of numeric right now, * + * force it to be copied later in its entirety */ + zero_padding_insertion_ind = 0; + } else { + /* insert first part of numerics (sign or '0x') before zero padding */ + int n = zero_padding_insertion_ind; + if (n > 0) { + if (str_l < str_m) { + size_t avail = str_m-str_l; + fast_memcpy(str+str_l, str_arg, (n>avail?avail:n)); + } + str_l += n; + } + /* insert zero padding as requested by the precision or min field width */ + n = number_of_zeros_to_pad; + if (n > 0) { + if (str_l < str_m) { + size_t avail = str_m-str_l; + fast_memset(str+str_l, '0', (n>avail?avail:n)); + } + str_l += n; + } + } + /* insert formatted string + * (or as-is conversion specifier for unknown conversions) */ + { int n = str_arg_l - zero_padding_insertion_ind; + if (n > 0) { + if (str_l < str_m) { + size_t avail = str_m-str_l; + fast_memcpy(str+str_l, str_arg+zero_padding_insertion_ind, + (n>avail?avail:n)); + } + str_l += n; + } + } + /* insert right padding */ + if (justify_left) { /* right blank padding to the field width */ + int n = min_field_width - (str_arg_l+number_of_zeros_to_pad); + if (n > 0) { + if (str_l < str_m) { + size_t avail = str_m-str_l; + fast_memset(str+str_l, ' ', (n>avail?avail:n)); + } + str_l += n; + } + } + } + } +#if defined(NEED_SNPRINTF_ONLY) + va_end(ap); +#endif + if (str_m > 0) { /* make sure the string is null-terminated + even at the expense of overwriting the last character + (shouldn't happen, but just in case) */ + str[str_l <= str_m-1 ? str_l : str_m-1] = '\0'; + } + /* Return the number of characters formatted (excluding trailing null + * character), that is, the number of characters that would have been + * written to the buffer if it were large enough. + * + * The value of str_l should be returned, but str_l is of unsigned type + * size_t, and snprintf is int, possibly leading to an undetected + * integer overflow, resulting in a negative return value, which is illegal. + * Both XSH5 and ISO C99 (at least the draft) are silent on this issue. + * Should errno be set to EOVERFLOW and EOF returned in this case??? + */ + return (int) str_l; +} +#endif
--- a/src/toplev.cc +++ b/src/toplev.cc @@ -171,10 +171,10 @@ { unwind_protect::run_all (); can_interrupt = true; - octave_interrupt_immediately = 0; + SET_OCTAVE_INTERRUPT_IMMEDIATELY (0); octave_interrupt_state = 0; - std::cout << "\n"; \ - octave_restore_signal_mask (); \ + std::cout << "\n"; + octave_restore_signal_mask (); octave_catch_interrupts (); } }