Mercurial > hg > octave-lyh > gnulib-hg
changeset 4172:5321105558d8
Add module descriptions.
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--- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,10 @@ +2003-01-11 Bruno Haible <bruno@clisp.org> + + * modules/*: Add a description. + * modules/strpbrk: Fix Makefile.am snippet. + * modules/strtoimax: Fix dependencies. + * modules/strtoumax: Likewise. + 2003-01-11 Bruno Haible <bruno@clisp.org> * gnulib-tool (func_create_testdir): Substitute lib_OBJECTS.
--- a/modules/acl +++ b/modules/acl @@ -1,4 +1,5 @@ Description: +Access control lists of files. (Unportable.) Files: lib/acl.h
--- a/modules/argmatch +++ b/modules/argmatch @@ -1,4 +1,5 @@ Description: +Search for an exact or abbreviated match of a string in an array of strings. Files: lib/argmatch.h
--- a/modules/atexit +++ b/modules/atexit @@ -1,4 +1,5 @@ Description: +atexit() function: register a function to be called at program termination. Files: lib/atexit.c
--- a/modules/backupfile +++ b/modules/backupfile @@ -1,4 +1,6 @@ Description: +Determination of the filename of a backup file, according to user environment +variables. Files: lib/backupfile.h
--- a/modules/bcopy +++ b/modules/bcopy @@ -1,4 +1,5 @@ Description: +Old BSD bcopy() function: copy memory area. Files: lib/bcopy.c
--- a/modules/bumpalloc +++ b/modules/bumpalloc @@ -1,4 +1,5 @@ Description: +Increase table allocation by one element. Files: lib/bumpalloc.h
--- a/modules/c-stack +++ b/modules/c-stack @@ -1,4 +1,5 @@ Description: +Stack overflow handling, causing program exit. Files: lib/c-stack.h
--- a/modules/canon-host +++ b/modules/canon-host @@ -1,4 +1,6 @@ Description: +Canonicalize a host name: return a name other hosts can understand, i.e. +usually the host name including FQDN. Files: lib/canon-host.c
--- a/modules/chown +++ b/modules/chown @@ -1,4 +1,5 @@ Description: +chown() function: change ownership of a file. Files: lib/chown.c
--- a/modules/closeout +++ b/modules/closeout @@ -1,4 +1,5 @@ Description: +Close stdout, checking for errors. Files: lib/closeout.h
--- a/modules/diacrit +++ b/modules/diacrit @@ -1,4 +1,5 @@ Description: +Decomposition of composed ISO-8859-1 characters. Files: lib/diacrit.h
--- a/modules/dirfd +++ b/modules/dirfd @@ -1,4 +1,5 @@ Description: +Retrieving the file descriptor of an open directory stream. (Unportable.) Files: lib/dirfd.h
--- a/modules/dirname +++ b/modules/dirname @@ -1,4 +1,5 @@ Description: +Extract specific portions of filenames. Files: lib/dirname.h
--- a/modules/dup2 +++ b/modules/dup2 @@ -1,4 +1,5 @@ Description: +dup2() function: duplicate an open file descriptor. Files: lib/dup2.c
--- a/modules/error +++ b/modules/error @@ -1,4 +1,5 @@ Description: +error() and error_at_line() functions: Error reporting. Files: lib/error.h
--- a/modules/euidaccess +++ b/modules/euidaccess @@ -1,4 +1,5 @@ Description: +euidaccess() function: check effective user's permissions for a file. Files: lib/euidaccess.c
--- a/modules/exclude +++ b/modules/exclude @@ -1,4 +1,5 @@ Description: +Manage list of filenames or wildcard patterns for --exclude option processing. Files: lib/exclude.h
--- a/modules/exitfail +++ b/modules/exitfail @@ -1,4 +1,5 @@ Description: +Set exit status for fatal signal. Files: lib/exitfail.h
--- a/modules/fatal +++ b/modules/fatal @@ -1,4 +1,5 @@ Description: +Error reporting for fatal errors. Files: lib/fatal.h
--- a/modules/file-type +++ b/modules/file-type @@ -1,4 +1,5 @@ Description: +Return a string describing the type of a file. Files: lib/file-type.h
--- a/modules/fileblocks +++ b/modules/fileblocks @@ -1,4 +1,5 @@ Description: +Estimate number of blocks of a file, if 'struct stat' doesn't have st_blocks. Files: lib/fileblocks.c
--- a/modules/filemode +++ b/modules/filemode @@ -1,4 +1,6 @@ Description: +Return a string (?rwxrwxrwx format) describing the type and permissions of a +file. Files: lib/filemode.h
--- a/modules/fnmatch +++ b/modules/fnmatch @@ -1,4 +1,5 @@ Description: +GNU fnmatch() implementation. Files: lib/fnmatch_.h
--- a/modules/fnmatch-gnu +++ b/modules/fnmatch-gnu @@ -1,4 +1,5 @@ Description: +fnmatch() function: wildcard matching, with GNU extensions. Files:
--- a/modules/fnmatch-posix +++ b/modules/fnmatch-posix @@ -1,4 +1,5 @@ Description: +fnmatch() function: wildcard matching. Files:
--- a/modules/fpending +++ b/modules/fpending @@ -1,4 +1,5 @@ Description: +Determine the number of bytes waiting in the output buffer of a stream. Files: lib/__fpending.h
--- a/modules/fsusage +++ b/modules/fsusage @@ -1,4 +1,5 @@ Description: +Return filesystem space usage info. Files: lib/fsusage.h
--- a/modules/ftruncate +++ b/modules/ftruncate @@ -1,4 +1,5 @@ Description: +ftruncate() function: truncate an open file to a specified length. Files: lib/ftruncate.c
--- a/modules/full-read +++ b/modules/full-read @@ -1,4 +1,5 @@ Description: +An interface to read() that reads all it is asked to read. Files: lib/full-read.h
--- a/modules/full-write +++ b/modules/full-write @@ -1,4 +1,5 @@ Description: +An interface to write() that writes all it is asked to write. Files: lib/full-write.h
--- a/modules/gcd +++ b/modules/gcd @@ -1,4 +1,5 @@ Description: +Greatest common divisor. Files: lib/gcd.h
--- a/modules/getdate +++ b/modules/getdate @@ -1,4 +1,5 @@ Description: +Convert a date/time string to linear time. Files: lib/getdate.h
--- a/modules/getgroups +++ b/modules/getgroups @@ -1,4 +1,5 @@ Description: +getgroups() function: return the supplementary group IDs of the current process. Files: lib/getgroups.c
--- a/modules/gethostname +++ b/modules/gethostname @@ -1,4 +1,5 @@ Description: +gethostname() function: Return machine's hostname. Files: lib/gethostname.c
--- a/modules/getline +++ b/modules/getline @@ -1,4 +1,5 @@ Description: +Read a line from a stream. Files: lib/getline.h
--- a/modules/getloadavg +++ b/modules/getloadavg @@ -1,4 +1,5 @@ Description: +Return the current system load averages. Files: lib/getloadavg.c
--- a/modules/getopt +++ b/modules/getopt @@ -1,4 +1,5 @@ Description: +Process command line arguments. Files: lib/getopt.h
--- a/modules/getpagesize +++ b/modules/getpagesize @@ -1,4 +1,5 @@ Description: +getpagesize() function: Return memory page size. Files: lib/getpagesize.h
--- a/modules/getpass +++ b/modules/getpass @@ -1,4 +1,5 @@ Description: +getpass() function: read a password from /dev/tty. Files: lib/getpass.c
--- a/modules/gettext +++ b/modules/gettext @@ -1,4 +1,5 @@ Description: +Translate messages to user's native language. Files: lib/gettext.h
--- a/modules/gettime +++ b/modules/gettime @@ -1,4 +1,5 @@ Description: +Return current time, with nanosecond resolution. Files: lib/gettime.c
--- a/modules/gettimeofday +++ b/modules/gettimeofday @@ -1,4 +1,5 @@ Description: +gettimeofday() function: return current time. Files: lib/gettimeofday.c
--- a/modules/getugroups +++ b/modules/getugroups @@ -1,4 +1,5 @@ Description: +Return the group IDs of a user. Files: lib/getugroups.c
--- a/modules/getusershell +++ b/modules/getusershell @@ -1,4 +1,5 @@ Description: +Return names of valid user shells. Files: lib/getusershell.c
--- a/modules/group-member +++ b/modules/group-member @@ -1,4 +1,5 @@ Description: +Determine whether the current process has the permissions of a given group ID. Files: lib/group-member.h
--- a/modules/hard-locale +++ b/modules/hard-locale @@ -1,4 +1,5 @@ Description: +Determine whether the current locale is different from the "C" locale. Files: lib/hard-locale.h
--- a/modules/hash +++ b/modules/hash @@ -1,4 +1,5 @@ Description: +Parametrizable hash table. Files: lib/hash.h
--- a/modules/hash-pjw +++ b/modules/hash-pjw @@ -1,4 +1,5 @@ Description: +Compute a hash value for a NUL-terminated string. Files: lib/hash-pjw.h
--- a/modules/human +++ b/modules/human @@ -1,4 +1,6 @@ Description: +Convert a number (usually a file size) to a human readable string, possibly +with K/M/G suffix. Files: lib/human.h
--- a/modules/iconv +++ b/modules/iconv @@ -1,4 +1,5 @@ Description: +Character set conversion. Files: m4/iconv.m4
--- a/modules/idcache +++ b/modules/idcache @@ -1,4 +1,5 @@ Description: +Username <--> uid and groupname <--> gid conversions, with cache for speed. Files: lib/idcache.c
--- a/modules/isdir +++ b/modules/isdir @@ -1,4 +1,5 @@ Description: +Determine whether a directory exists. Files: lib/isdir.c
--- a/modules/lchown +++ b/modules/lchown @@ -1,4 +1,5 @@ Description: +lchown() function: change ownership of a file. Files: lib/lchown.h
--- a/modules/linebuffer +++ b/modules/linebuffer @@ -1,4 +1,5 @@ Description: +Read a line from a stream. Files: lib/linebuffer.h
--- a/modules/localcharset +++ b/modules/localcharset @@ -1,4 +1,5 @@ Description: +Return current locale's character encoding. Files: lib/localcharset.h
--- a/modules/long-options +++ b/modules/long-options @@ -1,4 +1,5 @@ Description: +Handle --help and --version options. Files: lib/long-options.h
--- a/modules/lstat +++ b/modules/lstat @@ -1,4 +1,5 @@ Description: +stat() function: return information about a file or symbolic link. Files: lib/lstat.c
--- a/modules/makepath +++ b/modules/makepath @@ -1,4 +1,5 @@ Description: +Ensure that a directory path exists. Files: lib/makepath.h
--- a/modules/malloc +++ b/modules/malloc @@ -1,4 +1,5 @@ Description: +malloc() function that is glibc compatible. Files: lib/malloc.c
--- a/modules/mbswidth +++ b/modules/mbswidth @@ -1,4 +1,5 @@ Description: +Determine the number of screen columns needed for a string. Files: lib/mbswidth.h
--- a/modules/md5 +++ b/modules/md5 @@ -1,4 +1,5 @@ Description: +Compute MD5 checksum. Files: lib/md5.h
--- a/modules/memcasecmp +++ b/modules/memcasecmp @@ -1,4 +1,5 @@ Description: +Case-insensitive memory area comparison. Files: lib/memcasecmp.h
--- a/modules/memchr +++ b/modules/memchr @@ -1,4 +1,5 @@ Description: +memchr() function: scan memory for a byte. Files: lib/memchr.c
--- a/modules/memcmp +++ b/modules/memcmp @@ -1,4 +1,5 @@ Description: +memcmp() function: compare memory areas. Files: lib/memcmp.c
--- a/modules/memcoll +++ b/modules/memcoll @@ -1,4 +1,5 @@ Description: +Locale dependent memory area comparison. Files: lib/memcoll.h
--- a/modules/memcpy +++ b/modules/memcpy @@ -1,4 +1,5 @@ Description: +memcpy() function: copy memory area. Files: lib/memcpy.c
--- a/modules/memmove +++ b/modules/memmove @@ -1,4 +1,5 @@ Description: +memmove() function: copy memory area. Files: lib/memmove.c
--- a/modules/memrchr +++ b/modules/memrchr @@ -1,4 +1,5 @@ Description: +memrchr() function: scan memory for a byte, from the right end. Files: lib/memrchr.c
--- a/modules/memset +++ b/modules/memset @@ -1,4 +1,5 @@ Description: +memset() function: fill memory with a constant byte. Files: lib/memset.c
--- a/modules/mkdir +++ b/modules/mkdir @@ -1,4 +1,5 @@ Description: +mkdir() function: create a directory. Files: lib/mkdir.c
--- a/modules/mkstemp +++ b/modules/mkstemp @@ -1,4 +1,5 @@ Description: +mkstemp() function: create a private temporary file. Files: lib/mkstemp.c
--- a/modules/mktime +++ b/modules/mktime @@ -1,4 +1,5 @@ Description: +mktime() function: convert broken-down time to linear time. Files: lib/mktime.c
--- a/modules/modechange +++ b/modules/modechange @@ -1,4 +1,6 @@ Description: +Manipulation of mode changes specified by strings (e.g. as first argument of +chmod utility). Files: lib/modechange.h
--- a/modules/mountlist +++ b/modules/mountlist @@ -1,4 +1,5 @@ Description: +Return list of mounted filesystems. Files: lib/mountlist.h
--- a/modules/nanosleep +++ b/modules/nanosleep @@ -1,4 +1,5 @@ Description: +nanosleep() function: pause execution for a specified time. Files: lib/nanosleep.c
--- a/modules/obstack +++ b/modules/obstack @@ -1,4 +1,5 @@ Description: +Memory allocation, optimized for stack-like allocation patterns. Files: lib/obstack.h
--- a/modules/path-concat +++ b/modules/path-concat @@ -1,4 +1,6 @@ Description: +Construct a full pathname by concatenating a directory name and a relative +filename. Files: lib/path-concat.h
--- a/modules/pathmax +++ b/modules/pathmax @@ -1,4 +1,5 @@ Description: +Return maximum size of reasonable pathnames. (Unportable: Hurd has no limit.) Files: lib/pathmax.h
--- a/modules/physmem +++ b/modules/physmem @@ -1,4 +1,5 @@ Description: +Return amount of total/available physical memory. Files: lib/physmem.h
--- a/modules/posixtm +++ b/modules/posixtm @@ -1,4 +1,5 @@ Description: +Convert a date/time string (POSIX syntax) to linear time or broken-down time. Files: lib/posixtm.h
--- a/modules/posixver +++ b/modules/posixver @@ -1,4 +1,6 @@ Description: +Determine desired POSIX specification version, according to user's environment +variables. Files: lib/posixver.h
--- a/modules/putenv +++ b/modules/putenv @@ -1,4 +1,5 @@ Description: +putenv() function: change or add an environment variable. Files: lib/putenv.c
--- a/modules/quote +++ b/modules/quote @@ -1,4 +1,5 @@ Description: +Quote arguments for use in error messages. Files: lib/quote.h
--- a/modules/quotearg +++ b/modules/quotearg @@ -1,4 +1,5 @@ Description: +Quote arguments for use in error messages. Files: lib/quotearg.h
--- a/modules/readtokens +++ b/modules/readtokens @@ -1,4 +1,5 @@ Description: +Read tokens from a stream. Files: lib/readtokens.h
--- a/modules/readutmp +++ b/modules/readutmp @@ -1,4 +1,5 @@ Description: +Read entire utmp file into memory. Files: lib/readutmp.h
--- a/modules/realloc +++ b/modules/realloc @@ -1,4 +1,5 @@ Description: +realloc() function that is glibc compatible. Files: lib/realloc.c
--- a/modules/regex +++ b/modules/regex @@ -1,4 +1,5 @@ Description: +Regular expression matching. Files: lib/regex.h
--- a/modules/rename +++ b/modules/rename @@ -1,4 +1,5 @@ Description: +rename() function: change the name or location of a file. Files: lib/rename.c
--- a/modules/rmdir +++ b/modules/rmdir @@ -1,4 +1,5 @@ Description: +rmdir() function: delete a directory. Files: lib/rmdir.c
--- a/modules/rpmatch +++ b/modules/rpmatch @@ -1,4 +1,5 @@ Description: +Locale dependent classification of a response as matching "yes" or "no". Files: lib/rpmatch.c
--- a/modules/safe-read +++ b/modules/safe-read @@ -1,4 +1,5 @@ Description: +An interface to read() that retries after interrupts. Files: lib/safe-read.h
--- a/modules/safe-write +++ b/modules/safe-write @@ -1,4 +1,5 @@ Description: +An interface to write() that retries after interrupts. Files: lib/safe-write.h
--- a/modules/same +++ b/modules/same @@ -1,4 +1,6 @@ Description: +Determine whether two pathnames refer to the same directory entry of the same +directory. Files: lib/same.h
--- a/modules/save-cwd +++ b/modules/save-cwd @@ -1,4 +1,5 @@ Description: +Save and restore the current working directory. Files: lib/save-cwd.h
--- a/modules/savedir +++ b/modules/savedir @@ -1,4 +1,5 @@ Description: +Return the entries of a directory (just the names) as an argz string. Files: lib/savedir.h
--- a/modules/setenv +++ b/modules/setenv @@ -1,4 +1,6 @@ Description: +setenv() function: set an environment variable. +unsetenv() function: remove an environment variable. Files: lib/setenv.h
--- a/modules/settime +++ b/modules/settime @@ -1,4 +1,5 @@ Description: +Set the current time, with nanosecond resolution. Files: lib/settime.c
--- a/modules/sha +++ b/modules/sha @@ -1,4 +1,5 @@ Description: +Compute SHA checksum. Files: lib/sha.h
--- a/modules/sig2str +++ b/modules/sig2str @@ -1,4 +1,5 @@ Description: +Convert between signal names and signal numbers. Files: lib/sig2str.h
--- a/modules/stat +++ b/modules/stat @@ -1,4 +1,5 @@ Description: +stat() function: return information about a file, following symbolic links. Files: lib/stat.c
--- a/modules/stdbool +++ b/modules/stdbool @@ -1,4 +1,6 @@ Description: +An <stdbool.h> that nearly conforms to C99. +(Nearly: casts to bool may not work.) Files: lib/stdbool.h.in
--- a/modules/stdio-safer +++ b/modules/stdio-safer @@ -1,4 +1,5 @@ Description: +File stream functions that avoid clobbering std{in,out,err}. Files: lib/stdio-safer.h
--- a/modules/stpcpy +++ b/modules/stpcpy @@ -1,4 +1,5 @@ Description: +stpcpy() function: copy a string, returning a pointer to its end. Files: lib/stpcpy.h
--- a/modules/strcase +++ b/modules/strcase @@ -1,4 +1,5 @@ Description: +Case-insensitive string comparison functions. Files: lib/strcase.h
--- a/modules/strcspn +++ b/modules/strcspn @@ -1,4 +1,5 @@ Description: +strcspn() function: search a string for any of a set of characters. Files: lib/strcspn.c
--- a/modules/strdup +++ b/modules/strdup @@ -1,4 +1,5 @@ Description: +strdup() function: duplicate a string. Files: lib/strdup.c
--- a/modules/strerror +++ b/modules/strerror @@ -1,4 +1,5 @@ Description: +strerror() function: return string describing error code. Files: lib/strerror.c
--- a/modules/strftime +++ b/modules/strftime @@ -1,4 +1,5 @@ Description: +nstrftime() function: convert date and time to string, with GNU extensions. Files: lib/strftime.c
--- a/modules/strndup +++ b/modules/strndup @@ -1,4 +1,5 @@ Description: +strndup() function: duplicate a size-bounded string. Files: lib/strndup.c
--- a/modules/strnlen +++ b/modules/strnlen @@ -1,4 +1,5 @@ Description: +strnlen() function: determine the length of a size-bounded string. Files: lib/strnlen.c
--- a/modules/strpbrk +++ b/modules/strpbrk @@ -1,4 +1,5 @@ Description: +strpbrk() function: search a string for any of a set of characters. Files: lib/strpbrk.h @@ -11,6 +12,7 @@ gl_FUNC_STRPBRK Makefile.am: +lib_SOURCES += strpbrk.h Include: "strpbrk.h"
--- a/modules/strstr +++ b/modules/strstr @@ -1,4 +1,5 @@ Description: +strstr() function: search for a substring in a string. Files: lib/strstr.h
--- a/modules/strtod +++ b/modules/strtod @@ -1,4 +1,5 @@ Description: +strtod() function: convert string to 'double'. Files: lib/strtod.c
--- a/modules/strtoimax +++ b/modules/strtoimax @@ -1,4 +1,5 @@ Description: +strtoimax() function: convert string to 'intmax_t'. Files: lib/strtoimax.c @@ -9,6 +10,7 @@ m4/strtoimax.m4 Depends-on: +strtoll configure.ac: gl_FUNC_STRTOIMAX
--- a/modules/strtol +++ b/modules/strtol @@ -1,4 +1,5 @@ Description: +strtol() function: convert string to 'long'. Files: lib/strtol.c
--- a/modules/strtoll +++ b/modules/strtoll @@ -1,4 +1,5 @@ Description: +strtoll() function: convert string to 'long long'. Files: lib/strtoll.c
--- a/modules/strtoul +++ b/modules/strtoul @@ -1,4 +1,5 @@ Description: +strtoul() function: convert string to 'unsigned long'. Files: lib/strtoul.c
--- a/modules/strtoull +++ b/modules/strtoull @@ -1,4 +1,5 @@ Description: +strtoull() function: convert string to 'unsigned long long'. Files: lib/strtoull.c
--- a/modules/strtoumax +++ b/modules/strtoumax @@ -1,4 +1,5 @@ Description: +strtoumax() function: convert string to 'uintmax_t'. Files: lib/strtoumax.c @@ -10,6 +11,7 @@ Depends-on: strtoimax +strtoull configure.ac: gl_FUNC_STRTOUMAX
--- a/modules/strverscmp +++ b/modules/strverscmp @@ -1,4 +1,5 @@ Description: +Compare strings holding version numbers. Files: lib/strverscmp.h
--- a/modules/timespec +++ b/modules/timespec @@ -1,4 +1,5 @@ Description: +struct timespec. Files: lib/timespec.h
--- a/modules/unicodeio +++ b/modules/unicodeio @@ -1,4 +1,5 @@ Description: +Unicode character output to streams with locale dependent encoding. Files: lib/unicodeio.h
--- a/modules/unistd-safer +++ b/modules/unistd-safer @@ -1,4 +1,5 @@ Description: +File descriptor functions that avoid clobbering STD{IN,OUT,ERR}_FILENO. Files: lib/unistd-safer.h
--- a/modules/unlocked-io +++ b/modules/unlocked-io @@ -1,4 +1,5 @@ Description: +Enable faster, non-thread-safe stdio functions if available. Files: lib/unlocked-io.h
--- a/modules/userspec +++ b/modules/userspec @@ -1,4 +1,6 @@ Description: +Parse a specifying a user and/or group (e.g. as first argument of chown +utility). Files: lib/userspec.c
--- a/modules/utime +++ b/modules/utime @@ -1,4 +1,5 @@ Description: +utime() function: change access and/or modification times of a file. Files: lib/utime.c
--- a/modules/version-etc +++ b/modules/version-etc @@ -1,4 +1,5 @@ Description: +Print --version output. Files: lib/version-etc.h
--- a/modules/xalloc +++ b/modules/xalloc @@ -1,4 +1,5 @@ Description: +Memory allocation with out-of-memory checking. Files: lib/xalloc.h
--- a/modules/xgetcwd +++ b/modules/xgetcwd @@ -1,4 +1,5 @@ Description: +Return the current working directory, without size limitations. Files: lib/xgetcwd.h
--- a/modules/xgethostname +++ b/modules/xgethostname @@ -1,4 +1,5 @@ Description: +Return machine's hostname, without size limitations. Files: lib/xgethostname.c
--- a/modules/xmemcoll +++ b/modules/xmemcoll @@ -1,4 +1,5 @@ Description: +Locale dependent memory area comparison, with error checking. Files: lib/xmemcoll.h
--- a/modules/xreadlink +++ b/modules/xreadlink @@ -1,4 +1,5 @@ Description: +Return the contents of a symbolic link, without size limitations. Files: lib/xreadlink.h
--- a/modules/xstrtod +++ b/modules/xstrtod @@ -1,4 +1,5 @@ Description: +Convert string to 'double', with error checking. Files: lib/xstrtod.h
--- a/modules/xstrtoimax +++ b/modules/xstrtoimax @@ -1,4 +1,5 @@ Description: +Convert string to 'intmax_t', with error checking. Files:
--- a/modules/xstrtol +++ b/modules/xstrtol @@ -1,4 +1,5 @@ Description: +Convert string to 'long` or 'unsigned long', with error checking. Files: lib/xstrtol.h