m4/snprintf-posix.m4

   1 # snprintf-posix.m4 serial 14
   2 dnl Copyright (C) 2007-2020 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.
   6
   7 AC_DEFUN([gl_FUNC_SNPRINTF_POSIX],
   8 [
   9   AC_REQUIRE([gl_PRINTF_SIZES_C99])
  10   AC_REQUIRE([gl_PRINTF_LONG_DOUBLE])
  11   AC_REQUIRE([gl_PRINTF_INFINITE])
  12   AC_REQUIRE([gl_PRINTF_INFINITE_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_DIRECTIVE_LS])
  17   AC_REQUIRE([gl_PRINTF_POSITIONS])
  18   AC_REQUIRE([gl_PRINTF_FLAG_GROUPING])
  19   AC_REQUIRE([gl_PRINTF_FLAG_LEFTADJUST])
  20   AC_REQUIRE([gl_PRINTF_FLAG_ZERO])
  21   AC_REQUIRE([gl_PRINTF_PRECISION])
  22   AC_REQUIRE([gl_PRINTF_ENOMEM])
  23   gl_cv_func_snprintf_posix=no
  24   AC_CHECK_FUNCS([snprintf])
  25   if test $ac_cv_func_snprintf = yes; then
  26     gl_SNPRINTF_TRUNCATION_C99
  27     gl_SNPRINTF_RETVAL_C99
  28     gl_SNPRINTF_DIRECTIVE_N
  29     gl_SNPRINTF_SIZE1
  30     gl_VSNPRINTF_ZEROSIZE_C99
  31     case "$gl_cv_func_printf_sizes_c99" in
  32       *yes)
  33         case "$gl_cv_func_printf_long_double" in
  34           *yes)
  35             case "$gl_cv_func_printf_infinite" in
  36               *yes)
  37                 case "$gl_cv_func_printf_infinite_long_double" in
  38                   *yes)
  39                     case "$gl_cv_func_printf_directive_a" in
  40                       *yes)
  41                         case "$gl_cv_func_printf_directive_f" in
  42                           *yes)
  43                             case "$gl_cv_func_printf_directive_n" in
  44                               *yes)
  45                                 case "$gl_cv_func_printf_directive_ls" in
  46                                   *yes)
  47                                     case "$gl_cv_func_printf_positions" in
  48                                       *yes)
  49                                         case "$gl_cv_func_printf_flag_grouping" in
  50                                           *yes)
  51                                             case "$gl_cv_func_printf_flag_leftadjust" in
  52                                               *yes)
  53                                                 case "$gl_cv_func_printf_flag_zero" in
  54                                                   *yes)
  55                                                     case "$gl_cv_func_printf_precision" in
  56                                                       *yes)
  57                                                         case "$gl_cv_func_printf_enomem" in
  58                                                           *yes)
  59                                                             case "$gl_cv_func_snprintf_truncation_c99" in
  60                                                               *yes)
  61                                                                 case "$gl_cv_func_snprintf_retval_c99" in
  62                                                                   *yes)
  63                                                                     case "$gl_cv_func_snprintf_directive_n" in
  64                                                                       *yes)
  65                                                                         case "$gl_cv_func_snprintf_size1" in
  66                                                                           *yes)
  67                                                                             case "$gl_cv_func_vsnprintf_zerosize_c99" in
  68                                                                               *yes)
  69                                                                                 # snprintf exists and is
  70                                                                                 # already POSIX compliant.
  71                                                                                 gl_cv_func_snprintf_posix=yes
  72                                                                                 ;;
  73                                                                             esac
  74                                                                             ;;
  75                                                                         esac
  76                                                                         ;;
  77                                                                     esac
  78                                                                     ;;
  79                                                                 esac
  80                                                                 ;;
  81                                                             esac
  82                                                             ;;
  83                                                         esac
  84                                                         ;;
  85                                                     esac
  86                                                     ;;
  87                                                 esac
  88                                                 ;;
  89                                             esac
  90                                             ;;
  91                                         esac
  92                                         ;;
  93                                     esac
  94                                     ;;
  95                                 esac
  96                                 ;;
  97                             esac
  98                             ;;
  99                         esac
 100                         ;;
 101                     esac
 102                     ;;
 103                 esac
 104                 ;;
 105             esac
 106             ;;
 107         esac
 108         ;;
 109     esac
 110   fi
 111   if test $gl_cv_func_snprintf_posix = no; then
 112     gl_PREREQ_VASNPRINTF_LONG_DOUBLE
 113     gl_PREREQ_VASNPRINTF_INFINITE_DOUBLE
 114     gl_PREREQ_VASNPRINTF_INFINITE_LONG_DOUBLE
 115     gl_PREREQ_VASNPRINTF_DIRECTIVE_A
 116     gl_PREREQ_VASNPRINTF_DIRECTIVE_F
 117     gl_PREREQ_VASNPRINTF_DIRECTIVE_LS
 118     gl_PREREQ_VASNPRINTF_FLAG_GROUPING
 119     gl_PREREQ_VASNPRINTF_FLAG_LEFTADJUST
 120     gl_PREREQ_VASNPRINTF_FLAG_ZERO
 121     gl_PREREQ_VASNPRINTF_PRECISION
 122     gl_PREREQ_VASNPRINTF_ENOMEM
 123     gl_REPLACE_VASNPRINTF
 124     gl_REPLACE_SNPRINTF
 125   fi
 126 ])