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_INFINITE])
12 AC_REQUIRE([gl_PRINTF_LONG_DOUBLE])
13 AC_REQUIRE([gl_PRINTF_DIRECTIVE_A])
14 AC_REQUIRE([gl_PRINTF_DIRECTIVE_F])
15 AC_REQUIRE([gl_PRINTF_DIRECTIVE_N])
16 AC_REQUIRE([gl_PRINTF_POSITIONS])
17 AC_REQUIRE([gl_PRINTF_FLAG_GROUPING])
18 AC_REQUIRE([gl_PRINTF_FLAG_ZERO])
19 gl_cv_func_snprintf_posix=no
20 AC_CHECK_FUNCS([snprintf])
21 if test $ac_cv_func_snprintf = yes; then
22 gl_SNPRINTF_TRUNCATION_C99
23 gl_SNPRINTF_RETVAL_C99
24 gl_SNPRINTF_DIRECTIVE_N
25 gl_VSNPRINTF_ZEROSIZE_C99
26 case "$gl_cv_func_printf_sizes_c99" in
28 case "$gl_cv_func_printf_infinite" in
30 case "$gl_cv_func_printf_long_double" in
32 case "$gl_cv_func_printf_directive_a" in
34 case "$gl_cv_func_printf_directive_f" in
36 case "$gl_cv_func_printf_directive_n" in
38 case "$gl_cv_func_printf_positions" in
40 case "$gl_cv_func_printf_flag_grouping" in
42 case "$gl_cv_func_printf_flag_zero" in
44 case "$gl_cv_func_snprintf_truncation_c99" in
46 case "$gl_cv_func_snprintf_retval_c99" in
48 case "$gl_cv_func_snprintf_directive_n" in
50 case "$gl_cv_func_vsnprintf_zerosize_c99" in
52 # snprintf exists and is
53 # already POSIX compliant.
54 gl_cv_func_snprintf_posix=yes
82 if test $gl_cv_func_snprintf_posix = no; then
83 gl_PREREQ_VASNPRINTF_INFINITE
84 gl_PREREQ_VASNPRINTF_LONG_DOUBLE
85 gl_PREREQ_VASNPRINTF_DIRECTIVE_A
86 gl_PREREQ_VASNPRINTF_DIRECTIVE_F
87 gl_PREREQ_VASNPRINTF_FLAG_GROUPING
88 gl_PREREQ_VASNPRINTF_FLAG_ZERO