1 # snprintf-posix.m4 serial 8
2 dnl Copyright (C) 2007 Free Software Foundation, Inc.
3 dnl This file is free software; the Free Software Foundation
4 dnl gives unlimited permission to copy and/or distribute it,
5 dnl with or without modifications, as long as this notice is preserved.
7 AC_DEFUN([gl_FUNC_SNPRINTF_POSIX],
9 AC_REQUIRE([gl_EOVERFLOW])
10 AC_REQUIRE([gl_PRINTF_SIZES_C99])
11 AC_REQUIRE([gl_PRINTF_LONG_DOUBLE])
12 AC_REQUIRE([gl_PRINTF_INFINITE])
13 AC_REQUIRE([gl_PRINTF_INFINITE_LONG_DOUBLE])
14 AC_REQUIRE([gl_PRINTF_DIRECTIVE_A])
15 AC_REQUIRE([gl_PRINTF_DIRECTIVE_F])
16 AC_REQUIRE([gl_PRINTF_DIRECTIVE_N])
17 AC_REQUIRE([gl_PRINTF_POSITIONS])
18 AC_REQUIRE([gl_PRINTF_FLAG_GROUPING])
19 AC_REQUIRE([gl_PRINTF_FLAG_ZERO])
20 gl_cv_func_snprintf_posix=no
21 AC_CHECK_FUNCS([snprintf])
22 if test $ac_cv_func_snprintf = yes; then
23 gl_SNPRINTF_TRUNCATION_C99
24 gl_SNPRINTF_RETVAL_C99
25 gl_SNPRINTF_DIRECTIVE_N
26 gl_VSNPRINTF_ZEROSIZE_C99
27 case "$gl_cv_func_printf_sizes_c99" in
29 case "$gl_cv_func_printf_long_double" in
31 case "$gl_cv_func_printf_infinite" in
33 case "$gl_cv_func_printf_infinite_long_double" in
35 case "$gl_cv_func_printf_directive_a" in
37 case "$gl_cv_func_printf_directive_f" in
39 case "$gl_cv_func_printf_directive_n" in
41 case "$gl_cv_func_printf_positions" in
43 case "$gl_cv_func_printf_flag_grouping" in
45 case "$gl_cv_func_printf_flag_zero" in
47 case "$gl_cv_func_snprintf_truncation_c99" in
49 case "$gl_cv_func_snprintf_retval_c99" in
51 case "$gl_cv_func_snprintf_directive_n" in
53 case "$gl_cv_func_vsnprintf_zerosize_c99" in
55 # snprintf exists and is
56 # already POSIX compliant.
57 gl_cv_func_snprintf_posix=yes
87 if test $gl_cv_func_snprintf_posix = no; then
88 gl_PREREQ_VASNPRINTF_LONG_DOUBLE
89 gl_PREREQ_VASNPRINTF_INFINITE_DOUBLE
90 gl_PREREQ_VASNPRINTF_INFINITE_LONG_DOUBLE
91 gl_PREREQ_VASNPRINTF_DIRECTIVE_A
92 gl_PREREQ_VASNPRINTF_DIRECTIVE_F
93 gl_PREREQ_VASNPRINTF_FLAG_GROUPING
94 gl_PREREQ_VASNPRINTF_FLAG_ZERO