Mercurial > hg > octave-lyh > gnulib-hg
changeset 15828:36ce57192e3b
New module 'fabsf'.
* lib/math.in.h (fabsf): New declaration.
* lib/fabsf.c: New file.
* m4/fabsf.m4: New file.
* m4/math_h.m4 (gl_MATH_H_DEFAULTS): Initialize GNULIB_FABSF,
HAVE_FABSF.
* modules/math (Makefile.am): Substitute GNULIB_FABSF, HAVE_FABSF.
* modules/fabsf: New file.
* tests/test-math-c++.cc: Check the declaration of fabsf.
* doc/posix-functions/fabsf.texi: Mention the new module.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Thu, 06 Oct 2011 00:03:44 +0200 |
parents | cafd593a210b |
children | edbd10ce63fa |
files | ChangeLog doc/posix-functions/fabsf.texi lib/fabsf.c lib/math.in.h m4/fabsf.m4 m4/math_h.m4 modules/fabsf modules/math tests/test-math-c++.cc |
diffstat | 9 files changed, 122 insertions(+), 6 deletions(-) [+] |
line wrap: on
line diff
--- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,16 @@ 2011-10-05 Bruno Haible <bruno@clisp.org> + New module 'fabsf'. + * lib/math.in.h (fabsf): New declaration. + * lib/fabsf.c: New file. + * m4/fabsf.m4: New file. + * m4/math_h.m4 (gl_MATH_H_DEFAULTS): Initialize GNULIB_FABSF, + HAVE_FABSF. + * modules/math (Makefile.am): Substitute GNULIB_FABSF, HAVE_FABSF. + * modules/fabsf: New file. + * tests/test-math-c++.cc: Check the declaration of fabsf. + * doc/posix-functions/fabsf.texi: Mention the new module. + fabs: Use a .m4 file. * m4/fabs.m4: New file. * modules/fabs (Files): Add it.
--- a/doc/posix-functions/fabsf.texi +++ b/doc/posix-functions/fabsf.texi @@ -4,14 +4,10 @@ POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/fabsf.html} -Gnulib module: --- +Gnulib module: fabsf Portability problems fixed by Gnulib: @itemize -@end itemize - -Portability problems not fixed by Gnulib: -@itemize @item This function is missing on some platforms: AIX 5.1, Solaris 9. @@ -19,3 +15,7 @@ This function is only defined as a macro with arguments on some platforms: MSVC 9. @end itemize + +Portability problems not fixed by Gnulib: +@itemize +@end itemize
new file mode 100644 --- /dev/null +++ b/lib/fabsf.c @@ -0,0 +1,26 @@ +/* Absolute value. + Copyright (C) 2011 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + 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 + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +#include <config.h> + +/* Specification. */ +#include <math.h> + +float +fabsf (float x) +{ + return (float) fabs ((double) x); +}
--- a/lib/math.in.h +++ b/lib/math.in.h @@ -282,6 +282,22 @@ #endif +#if @GNULIB_FABSF@ +# if !@HAVE_FABSF@ +# undef fabsf +_GL_FUNCDECL_SYS (fabsf, float, (float x)); +# endif +_GL_CXXALIAS_SYS (fabsf, float, (float x)); +_GL_CXXALIASWARN (fabsf); +#elif defined GNULIB_POSIXCHECK +# undef fabsf +# if HAVE_RAW_DECL_FABSF +_GL_WARN_ON_USE (fabsf, "fabsf is unportable - " + "use gnulib module fabsf for portability"); +# endif +#endif + + #if @GNULIB_FLOORF@ # if @REPLACE_FLOORF@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
new file mode 100644 --- /dev/null +++ b/m4/fabsf.m4 @@ -0,0 +1,25 @@ +# fabsf.m4 serial 1 +dnl Copyright (C) 2011 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_FABSF], +[ + AC_REQUIRE([gl_MATH_H_DEFAULTS]) + AC_REQUIRE([gl_FUNC_FABS]) + + dnl Test whether fabsf() exists. Assume that fabsf(), if it exists, is + dnl defined in the same library as fabs(). + save_LIBS="$LIBS" + LIBS="$LIBS $FABS_LIBM" + AC_CHECK_FUNCS([fabsf]) + LIBS="$save_LIBS" + if test $ac_cv_func_fabsf = yes; then + FABSF_LIBM="$FABS_LIBM" + else + HAVE_FABSF=0 + FABSF_LIBM="$FABS_LIBM" + fi + AC_SUBST([FABSF_LIBM]) +])
--- a/m4/math_h.m4 +++ b/m4/math_h.m4 @@ -1,4 +1,4 @@ -# math_h.m4 serial 25 +# math_h.m4 serial 26 dnl Copyright (C) 2007-2011 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -62,6 +62,7 @@ GNULIB_CEILL=0; AC_SUBST([GNULIB_CEILL]) GNULIB_COSL=0; AC_SUBST([GNULIB_COSL]) GNULIB_EXPL=0; AC_SUBST([GNULIB_EXPL]) + GNULIB_FABSF=0; AC_SUBST([GNULIB_FABSF]) GNULIB_FLOOR=0; AC_SUBST([GNULIB_FLOOR]) GNULIB_FLOORF=0; AC_SUBST([GNULIB_FLOORF]) GNULIB_FLOORL=0; AC_SUBST([GNULIB_FLOORL]) @@ -92,6 +93,7 @@ HAVE_ATANL=1; AC_SUBST([HAVE_ATANL]) HAVE_COSL=1; AC_SUBST([HAVE_COSL]) HAVE_EXPL=1; AC_SUBST([HAVE_EXPL]) + HAVE_FABSF=1; AC_SUBST([HAVE_FABSF]) HAVE_ISNANF=1; AC_SUBST([HAVE_ISNANF]) HAVE_ISNAND=1; AC_SUBST([HAVE_ISNAND]) HAVE_ISNANL=1; AC_SUBST([HAVE_ISNANL])
new file mode 100644 --- /dev/null +++ b/modules/fabsf @@ -0,0 +1,31 @@ +Description: +fabsf() function: absolute value. + +Files: +lib/fabsf.c +m4/fabsf.m4 + +Depends-on: +math +fabs [test $HAVE_FABSF = 0] + +configure.ac: +gl_FUNC_FABSF +if test $HAVE_FABSF = 0; then + AC_LIBOBJ([fabsf]) +fi +gl_MATH_MODULE_INDICATOR([fabsf]) + +Makefile.am: + +Include: +<math.h> + +Link: +$(FABSF_LIBM) + +License: +LGPL + +Maintainer: +Bruno Haible
--- a/modules/math +++ b/modules/math @@ -36,6 +36,7 @@ -e 's/@''GNULIB_CEILL''@/$(GNULIB_CEILL)/g' \ -e 's/@''GNULIB_COSL''@/$(GNULIB_COSL)/g' \ -e 's/@''GNULIB_EXPL''@/$(GNULIB_EXPL)/g' \ + -e 's/@''GNULIB_FABSF''@/$(GNULIB_FABSF)/g' \ -e 's/@''GNULIB_FLOOR''@/$(GNULIB_FLOOR)/g' \ -e 's/@''GNULIB_FLOORF''@/$(GNULIB_FLOORF)/g' \ -e 's/@''GNULIB_FLOORL''@/$(GNULIB_FLOORL)/g' \ @@ -66,6 +67,7 @@ -e 's|@''HAVE_ATANL''@|$(HAVE_ATANL)|g' \ -e 's|@''HAVE_COSL''@|$(HAVE_COSL)|g' \ -e 's|@''HAVE_EXPL''@|$(HAVE_EXPL)|g' \ + -e 's|@''HAVE_FABSF''@|$(HAVE_FABSF)|g' \ -e 's|@''HAVE_ISNANF''@|$(HAVE_ISNANF)|g' \ -e 's|@''HAVE_ISNAND''@|$(HAVE_ISNAND)|g' \ -e 's|@''HAVE_ISNANL''@|$(HAVE_ISNANL)|g' \
--- a/tests/test-math-c++.cc +++ b/tests/test-math-c++.cc @@ -35,6 +35,9 @@ //SIGNATURE_CHECK (GNULIB_NAMESPACE::erf, double, (double)); //SIGNATURE_CHECK (GNULIB_NAMESPACE::erfc, double, (double)); //SIGNATURE_CHECK (GNULIB_NAMESPACE::exp, double, (double)); +#if GNULIB_TEST_FABSF +SIGNATURE_CHECK (GNULIB_NAMESPACE::fabsf, float, (float)); +#endif //SIGNATURE_CHECK (GNULIB_NAMESPACE::fabs, double, (double)); //SIGNATURE_CHECK (GNULIB_NAMESPACE::fmod, double, (double, double)); #if GNULIB_TEST_FREXP