Mercurial > gnulib
view m4/strtoimax.m4 @ 40177:dcd889592b62
dtoastr,ftoastr,ldtoastr: port to c-strtod changes
Decouple these modules from c-strtod. Nowadays it’s reasonable to
assume the C99 signatures for strtod and strtold. Programs that
require stricter adherence to C99 should also use the strtod and
strtold modules as needed, and we no longer need the
HAVE_C99_STRTOLD macro.
* NEWS: Mention this.
* lib/ftoastr.c (STRTOF) [LENGTH == 3]: Assume strtold.
* m4/c-strtod.m4 (gl_C_STRTOLD): Do not define HAVE_C99_STRTOLD.
* modules/dtoastr, modules/ftoastr, modules/ldtoastr:
(Files): Remove m4/c-strtod.m4.
(configure.ac): Do not require gl_C99_STRTOLD, which no longer
exists.
author | Paul Eggert <eggert@cs.ucla.edu> |
---|---|
date | Sat, 02 Feb 2019 13:01:55 -0800 |
parents | b06060465f09 |
children |
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# strtoimax.m4 serial 15 dnl Copyright (C) 2002-2004, 2006, 2009-2019 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_STRTOIMAX], [ AC_REQUIRE([gl_INTTYPES_H_DEFAULTS]) dnl On OSF/1 5.1 with cc, this function is declared but not defined. AC_CHECK_FUNCS_ONCE([strtoimax]) AC_CHECK_DECLS_ONCE([strtoimax]) if test "$ac_cv_have_decl_strtoimax" != yes; then HAVE_DECL_STRTOIMAX=0 fi if test "$ac_cv_func_strtoimax" = yes; then HAVE_STRTOIMAX=1 dnl On AIX 5.1, strtoimax() fails for values outside the 'int' range. AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether strtoimax works], [gl_cv_func_strtoimax], [AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include <errno.h> #include <string.h> #include <inttypes.h> int main () { if (sizeof (intmax_t) > sizeof (int)) { const char *s = "4294967295"; char *p; intmax_t res; errno = 0; res = strtoimax (s, &p, 10); if (p != s + strlen (s)) return 1; if (errno != 0) return 2; if (res != (intmax_t) 65535 * (intmax_t) 65537) return 3; } else { const char *s = "2147483647"; char *p; intmax_t res; errno = 0; res = strtoimax (s, &p, 10); if (p != s + strlen (s)) return 1; if (errno != 0) return 2; if (res != 2147483647) return 3; } return 0; } ]])], [gl_cv_func_strtoimax=yes], [gl_cv_func_strtoimax=no], [case "$host_os" in # Guess no on AIX 5. aix5*) gl_cv_func_strtoimax="guessing no" ;; # Guess yes on native Windows. mingw*) gl_cv_func_strtoimax="guessing yes" ;; # Guess yes otherwise. *) gl_cv_func_strtoimax="guessing yes" ;; esac ]) ]) case "$gl_cv_func_strtoimax" in *no) REPLACE_STRTOIMAX=1 ;; esac else if test "$ac_cv_have_decl_strtoimax" = yes; then # HP-UX 11.11 has "#define strtoimax(...) ..." but no function. REPLACE_STRTOIMAX=1 fi HAVE_STRTOIMAX=0 fi ]) # Prerequisites of lib/strtoimax.c. AC_DEFUN([gl_PREREQ_STRTOIMAX], [ AC_CHECK_DECLS([strtoll]) AC_REQUIRE([AC_TYPE_LONG_LONG_INT]) ])