strtold: New module. * lib/stdlib.in.h (strtold): New declaration. * lib/strtold.c: New file. * lib/strtod.c: Consider USE_LONG_DOUBLE. (STRTOD, LDEXP, HAVE_UNDERLYING_STRTOD, DOUBLE, MIN, MAX, L_, USE_LDEXP): New macros. (LDEXP, scale_radix_exp, parse_number, STRTOD): Adapt for USE_LONG_DOUBLE. (underlying_strtod): Remove function. Replace with some macros. Re-add the code for a missing underlying function that was removed on 2013-02-19. * m4/strtold.m4: New file. * m4/stdlib_h.m4 (gl_STDLIB_H): Test whether strtold is declared. (gl_STDLIB_H_DEFAULTS): Initialize GNULIB_STRTOLD, HAVE_STRTOLD, REPLACE_STRTOLD. * modules/stdlib (Makefile.am): Substitute GNULIB_STRTOLD, HAVE_STRTOLD, REPLACE_STRTOLD. * modules/strtold: New file. * doc/posix-functions/strtold.texi: Document the new module.

Description:
POSIX compatible vsprintf with automatic memory allocation.

Comment:
This module should not be used as a dependency from a test module,
otherwise when this module occurs as a tests-related module, it will
have side effects on the compilation of the 'vasnprintf' module, if
that module occurs among the main modules in lib/.

Files:
m4/vasprintf-posix.m4
m4/printf.m4
m4/math_h.m4

Depends-on:
vasprintf
vasnprintf     [test $HAVE_VASPRINTF = 0 || test $REPLACE_VASPRINTF = 1]
isnand-nolibm
isnanl-nolibm
frexp-nolibm
frexpl-nolibm
printf-frexp
printf-frexpl
signbit
fpucw
nocrash
printf-safe
multiarch

configure.ac:
gl_FUNC_VASPRINTF_POSIX

Makefile.am:

Include:
"vasprintf.h"

License:
LGPL

Maintainer:
all