-# printf.m4 serial 1
+# printf.m4 serial 6
dnl Copyright (C) 2003, 2007 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([gl_AC_HEADER_STDINT_H])
AC_REQUIRE([gl_AC_HEADER_INTTYPES_H])
- AC_REQUIRE([gt_TYPE_LONGDOUBLE])
AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
AC_CACHE_CHECK([whether printf supports size specifiers as in C99],
[gl_cv_func_printf_sizes_c99],
if (sprintf (buf, "%tu %d", (ptrdiff_t) 12345673, 33, 44, 55) < 0
|| strcmp (buf, "12345673 33") != 0)
return 1;
-#if HAVE_LONG_DOUBLE
buf[0] = '\0';
if (sprintf (buf, "%Lg %d", (long double) 1.5, 33, 44, 55) < 0
|| strcmp (buf, "1.5 33") != 0)
return 1;
-#endif
return 0;
}], [gl_cv_func_printf_sizes_c99=yes], [gl_cv_func_printf_sizes_c99=no],
[
changequote(,)dnl
case "$host_os" in
- dnl Guess yes on glibc systems.
+ # Guess yes on glibc systems.
*-gnu*) gl_cv_func_printf_sizes_c99="guessing yes";;
- dnl Guess yes on FreeBSD >= 5.
+ # Guess yes on FreeBSD >= 5.
freebsd[1-4]*) gl_cv_func_printf_sizes_c99="guessing no";;
freebsd* | kfreebsd*) gl_cv_func_printf_sizes_c99="guessing yes";;
- dnl Gusss yes on MacOS X >= 10.3.
+ # Guess yes on MacOS X >= 10.3.
darwin[1-6].*) gl_cv_func_printf_sizes_c99="guessing no";;
darwin*) gl_cv_func_printf_sizes_c99="guessing yes";;
- dnl Guess yes on Solaris >= 2.10.
+ # Guess yes on OpenBSD >= 3.9.
+ openbsd[1-2].* | openbsd3.[0-8] | openbsd3.[0-8].*)
+ gl_cv_func_printf_sizes_c99="guessing no";;
+ openbsd*) gl_cv_func_printf_sizes_c99="guessing yes";;
+ # Guess yes on Solaris >= 2.10.
solaris2.[0-9]*) gl_cv_func_printf_sizes_c99="guessing no";;
solaris*) gl_cv_func_printf_sizes_c99="guessing yes";;
- dnl Guess yes on NetBSD >= 3.
- netbsd[1-2]*) gl_cv_func_printf_sizes_c99="guessing no";;
+ # Guess yes on NetBSD >= 3.
+ netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*)
+ gl_cv_func_printf_sizes_c99="guessing no";;
netbsd*) gl_cv_func_printf_sizes_c99="guessing yes";;
- dnl If we don't know, assume the worst.
+ # If we don't know, assume the worst.
*) gl_cv_func_printf_sizes_c99="guessing no";;
esac
changequote([,])dnl
int main ()
{
if (sprintf (buf, "%a %d", 3.1416015625, 33, 44, 55) < 0
- || strcmp (buf, "0x1.922p+1 33") != 0)
+ || (strcmp (buf, "0x1.922p+1 33") != 0
+ && strcmp (buf, "0x3.244p+0 33") != 0
+ && strcmp (buf, "0x6.488p-1 33") != 0
+ && strcmp (buf, "0xc.91p-2 33") != 0))
return 1;
if (sprintf (buf, "%A %d", -3.1416015625, 33, 44, 55) < 0
- || strcmp (buf, "-0X1.922P+1 33") != 0)
+ || (strcmp (buf, "-0X1.922P+1 33") != 0
+ && strcmp (buf, "-0X3.244P+0 33") != 0
+ && strcmp (buf, "-0X6.488P-1 33") != 0
+ && strcmp (buf, "-0XC.91P-2 33") != 0))
+ return 1;
+ /* This catches a FreeBSD 6.1 bug: it doesn't round. */
+ if (sprintf (buf, "%.2a %d", 1.51, 33, 44, 55) < 0
+ || (strcmp (buf, "0x1.83p+0 33") != 0
+ && strcmp (buf, "0x3.05p-1 33") != 0
+ && strcmp (buf, "0x6.0ap-2 33") != 0
+ && strcmp (buf, "0xc.14p-3 33") != 0))
+ return 1;
+ /* This catches a FreeBSD 6.1 bug. See
+ <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
+ if (sprintf (buf, "%010a %d", 1.0 / 0.0, 33, 44, 55) < 0
+ || buf[0] == '0')
+ return 1;
+ /* This catches a MacOS X 10.3.9 (Darwin 7.9) bug. */
+ if (sprintf (buf, "%.1a", 1.999) < 0
+ || (strcmp (buf, "0x1.0p+1") != 0
+ && strcmp (buf, "0x2.0p+0") != 0
+ && strcmp (buf, "0x4.0p-1") != 0
+ && strcmp (buf, "0x8.0p-2") != 0))
+ return 1;
+ /* This catches the same MacOS X 10.3.9 (Darwin 7.9) bug and also a
+ glibc 2.4 bug <http://sourceware.org/bugzilla/show_bug.cgi?id=2908>. */
+ if (sprintf (buf, "%.1La", 1.999L) < 0
+ || (strcmp (buf, "0x1.0p+1") != 0
+ && strcmp (buf, "0x2.0p+0") != 0
+ && strcmp (buf, "0x4.0p-1") != 0
+ && strcmp (buf, "0x8.0p-2") != 0))
return 1;
return 0;
}], [gl_cv_func_printf_directive_a=yes], [gl_cv_func_printf_directive_a=no],
[
-changequote(,)dnl
case "$host_os" in
- dnl Guess yes on glibc systems.
- *-gnu*) gl_cv_func_printf_directive_a="guessing yes";;
- dnl Guess yes on FreeBSD >= 5.
- freebsd[1-4]*) gl_cv_func_printf_directive_a="guessing no";;
- freebsd* | kfreebsd*) gl_cv_func_printf_directive_a="guessing yes";;
- dnl Gusss yes on MacOS X >= 10.3.
- darwin[1-6].*) gl_cv_func_printf_directive_a="guessing no";;
- darwin*) gl_cv_func_printf_directive_a="guessing yes";;
- dnl If we don't know, assume the worst.
+ # Guess yes on glibc >= 2.5 systems.
+ *-gnu*)
+ AC_EGREP_CPP([BZ2908], [
+ #include <features.h>
+ #ifdef __GNU_LIBRARY__
+ #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 5) || (__GLIBC__ > 2)
+ BZ2908
+ #endif
+ #endif
+ ],
+ [gl_cv_func_printf_directive_a="guessing yes"],
+ [gl_cv_func_printf_directive_a="guessing no"])
+ ;;
+ # If we don't know, assume the worst.
*) gl_cv_func_printf_directive_a="guessing no";;
esac
-changequote([,])dnl
+ ])
+ ])
+])
+
+dnl Test whether the *printf family of functions supports the %F format
+dnl directive. (ISO C99, POSIX:2001)
+dnl Result is gl_cv_func_printf_directive_f.
+
+AC_DEFUN([gl_PRINTF_DIRECTIVE_F],
+[
+ AC_REQUIRE([AC_PROG_CC])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ AC_CACHE_CHECK([whether printf supports the 'F' directive],
+ [gl_cv_func_printf_directive_f],
+ [
+ AC_TRY_RUN([
+#include <stdio.h>
+#include <string.h>
+static char buf[100];
+int main ()
+{
+ if (sprintf (buf, "%F %d", 1234567.0, 33, 44, 55) < 0
+ || strcmp (buf, "1234567.000000 33") != 0)
+ return 1;
+ if (sprintf (buf, "%F", 1.0 / 0.0) < 0
+ || (strcmp (buf, "INF") != 0 && strcmp (buf, "INFINITY") != 0))
+ return 1;
+ /* This catches a Cygwin 2007 bug. */
+ if (sprintf (buf, "%.F", 1234.0) < 0
+ || strcmp (buf, "1234") != 0)
+ return 1;
+ return 0;
+}], [gl_cv_func_printf_directive_f=yes], [gl_cv_func_printf_directive_f=no],
+ [
+ case "$host_os" in
+ # If we don't know, assume the worst.
+ *) gl_cv_func_printf_directive_f="guessing no";;
+ esac
])
])
])
[
changequote(,)dnl
case "$host_os" in
- hpux*) gl_cv_func_printf_directive_n="guessing no";;
*) gl_cv_func_printf_directive_n="guessing yes";;
esac
changequote([,])dnl
[
changequote(,)dnl
case "$host_os" in
- netbsd*) gl_cv_func_printf_positions="guessing no";;
+ netbsd[1-3]* | netbsdelf[1-3]* | netbsdaout[1-3]* | netbsdcoff[1-3]*)
+ gl_cv_func_printf_positions="guessing no";;
beos*) gl_cv_func_printf_positions="guessing no";;
mingw* | pw*) gl_cv_func_printf_positions="guessing no";;
*) gl_cv_func_printf_positions="guessing yes";;
[
changequote(,)dnl
case "$host_os" in
- dnl Guess yes on glibc systems.
+ # Guess yes on glibc systems.
*-gnu*) gl_cv_func_snprintf_truncation_c99="guessing yes";;
- dnl Guess yes on FreeBSD >= 5.
+ # Guess yes on FreeBSD >= 5.
freebsd[1-4]*) gl_cv_func_snprintf_truncation_c99="guessing no";;
freebsd* | kfreebsd*) gl_cv_func_snprintf_truncation_c99="guessing yes";;
- dnl Gusss yes on MacOS X >= 10.3.
+ # Guess yes on MacOS X >= 10.3.
darwin[1-6].*) gl_cv_func_snprintf_truncation_c99="guessing no";;
darwin*) gl_cv_func_snprintf_truncation_c99="guessing yes";;
- dnl Guess yes on Solaris >= 2.6.
+ # Guess yes on OpenBSD >= 3.9.
+ openbsd[1-2].* | openbsd3.[0-8] | openbsd3.[0-8].*)
+ gl_cv_func_snprintf_truncation_c99="guessing no";;
+ openbsd*) gl_cv_func_snprintf_truncation_c99="guessing yes";;
+ # Guess yes on Solaris >= 2.6.
solaris2.[0-5]*) gl_cv_func_snprintf_truncation_c99="guessing no";;
solaris*) gl_cv_func_snprintf_truncation_c99="guessing yes";;
- dnl Guess yes on AIX >= 4.
+ # Guess yes on AIX >= 4.
aix[1-3]*) gl_cv_func_snprintf_truncation_c99="guessing no";;
aix*) gl_cv_func_snprintf_truncation_c99="guessing yes";;
- dnl Guess yes on HP-UX >= 11.
+ # Guess yes on HP-UX >= 11.
hpux[7-9]* | hpux10*) gl_cv_func_snprintf_truncation_c99="guessing no";;
hpux*) gl_cv_func_snprintf_truncation_c99="guessing yes";;
- dnl Guess yes on IRIX >= 6.5.
+ # Guess yes on IRIX >= 6.5.
irix6.5) gl_cv_func_snprintf_truncation_c99="guessing yes";;
- dnl Guess yes on OSF/1 >= 5.
+ # Guess yes on OSF/1 >= 5.
osf[3-4]*) gl_cv_func_snprintf_truncation_c99="guessing no";;
osf*) gl_cv_func_snprintf_truncation_c99="guessing yes";;
- dnl Guess yes on NetBSD >= 3.
- netbsd[1-2]*) gl_cv_func_snprintf_truncation_c99="guessing no";;
+ # Guess yes on NetBSD >= 3.
+ netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*)
+ gl_cv_func_snprintf_truncation_c99="guessing no";;
netbsd*) gl_cv_func_snprintf_truncation_c99="guessing yes";;
- dnl Guess yes on BeOS.
+ # Guess yes on BeOS.
beos*) gl_cv_func_snprintf_truncation_c99="guessing yes";;
- dnl If we don't know, assume the worst.
+ # If we don't know, assume the worst.
*) gl_cv_func_snprintf_truncation_c99="guessing no";;
esac
changequote([,])dnl
dnl Test whether the return value of the snprintf function is the number
dnl of bytes (excluding the terminating NUL) that would have been produced
dnl if the buffer had been large enough. (ISO C99, POSIX:2001)
-dnl Result is gl_cv_func_printf_retval_c99.
+dnl Result is gl_cv_func_snprintf_retval_c99.
AC_DEFUN([gl_SNPRINTF_RETVAL_C99],
[
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
AC_CACHE_CHECK([whether snprintf returns a byte count as in C99],
- [gl_cv_func_printf_retval_c99],
+ [gl_cv_func_snprintf_retval_c99],
[
AC_TRY_RUN([
#include <stdio.h>
if (snprintf (buf, 3, "%d %d", 4567, 89) != 7)
return 1;
return 0;
-}], [gl_cv_func_printf_retval_c99=yes], [gl_cv_func_printf_retval_c99=no],
+}], [gl_cv_func_snprintf_retval_c99=yes], [gl_cv_func_snprintf_retval_c99=no],
+ [
+changequote(,)dnl
+ case "$host_os" in
+ # Guess yes on glibc systems.
+ *-gnu*) gl_cv_func_snprintf_retval_c99="guessing yes";;
+ # Guess yes on FreeBSD >= 5.
+ freebsd[1-4]*) gl_cv_func_snprintf_retval_c99="guessing no";;
+ freebsd* | kfreebsd*) gl_cv_func_snprintf_retval_c99="guessing yes";;
+ # Guess yes on MacOS X >= 10.3.
+ darwin[1-6].*) gl_cv_func_snprintf_retval_c99="guessing no";;
+ darwin*) gl_cv_func_snprintf_retval_c99="guessing yes";;
+ # Guess yes on OpenBSD >= 3.9.
+ openbsd[1-2].* | openbsd3.[0-8] | openbsd3.[0-8].*)
+ gl_cv_func_snprintf_retval_c99="guessing no";;
+ openbsd*) gl_cv_func_snprintf_retval_c99="guessing yes";;
+ # Guess yes on Solaris >= 2.6.
+ solaris2.[0-5]*) gl_cv_func_snprintf_retval_c99="guessing no";;
+ solaris*) gl_cv_func_snprintf_retval_c99="guessing yes";;
+ # Guess yes on AIX >= 4.
+ aix[1-3]*) gl_cv_func_snprintf_retval_c99="guessing no";;
+ aix*) gl_cv_func_snprintf_retval_c99="guessing yes";;
+ # Guess yes on NetBSD >= 3.
+ netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*)
+ gl_cv_func_snprintf_retval_c99="guessing no";;
+ netbsd*) gl_cv_func_snprintf_retval_c99="guessing yes";;
+ # Guess yes on BeOS.
+ beos*) gl_cv_func_snprintf_retval_c99="guessing yes";;
+ # If we don't know, assume the worst.
+ *) gl_cv_func_snprintf_retval_c99="guessing no";;
+ esac
+changequote([,])dnl
+ ])
+ ])
+])
+
+dnl Test whether the snprintf function supports the %n format directive
+dnl also in truncated portions of the format string. (ISO C99, POSIX:2001)
+dnl Result is gl_cv_func_snprintf_directive_n.
+
+AC_DEFUN([gl_SNPRINTF_DIRECTIVE_N],
+[
+ AC_REQUIRE([AC_PROG_CC])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ AC_CACHE_CHECK([whether snprintf fully supports the 'n' directive],
+ [gl_cv_func_snprintf_directive_n],
+ [
+ AC_TRY_RUN([
+#include <stdio.h>
+#include <string.h>
+static char buf[100];
+int main ()
+{
+ int count = -1;
+ snprintf (buf, 4, "%d %n", 12345, &count, 33, 44, 55);
+ if (count != 6)
+ return 1;
+ return 0;
+}], [gl_cv_func_snprintf_directive_n=yes], [gl_cv_func_snprintf_directive_n=no],
[
changequote(,)dnl
case "$host_os" in
- dnl Guess yes on glibc systems.
- *-gnu*) gl_cv_func_printf_retval_c99="guessing yes";;
- dnl Guess yes on FreeBSD >= 5.
- freebsd[1-4]*) gl_cv_func_printf_retval_c99="guessing no";;
- freebsd* | kfreebsd*) gl_cv_func_printf_retval_c99="guessing yes";;
- dnl Gusss yes on MacOS X >= 10.3.
- darwin[1-6].*) gl_cv_func_printf_retval_c99="guessing no";;
- darwin*) gl_cv_func_printf_retval_c99="guessing yes";;
- dnl Guess yes on Solaris >= 2.6.
- solaris2.[0-5]*) gl_cv_func_printf_retval_c99="guessing no";;
- solaris*) gl_cv_func_printf_retval_c99="guessing yes";;
- dnl Guess yes on AIX >= 4.
- aix[1-3]*) gl_cv_func_printf_retval_c99="guessing no";;
- aix*) gl_cv_func_printf_retval_c99="guessing yes";;
- dnl Guess yes on NetBSD >= 3.
- netbsd[1-2]*) gl_cv_func_printf_retval_c99="guessing no";;
- netbsd*) gl_cv_func_printf_retval_c99="guessing yes";;
- dnl Guess yes on BeOS.
- beos*) gl_cv_func_printf_retval_c99="guessing yes";;
- dnl If we don't know, assume the worst.
- *) gl_cv_func_printf_retval_c99="guessing no";;
+ # Guess yes on glibc systems.
+ *-gnu*) gl_cv_func_snprintf_directive_n="guessing yes";;
+ # Guess yes on FreeBSD >= 5.
+ freebsd[1-4]*) gl_cv_func_snprintf_directive_n="guessing no";;
+ freebsd* | kfreebsd*) gl_cv_func_snprintf_directive_n="guessing yes";;
+ # Guess yes on MacOS X >= 10.3.
+ darwin[1-6].*) gl_cv_func_snprintf_directive_n="guessing no";;
+ darwin*) gl_cv_func_snprintf_directive_n="guessing yes";;
+ # Guess yes on Solaris >= 2.6.
+ solaris2.[0-5]*) gl_cv_func_snprintf_directive_n="guessing no";;
+ solaris*) gl_cv_func_snprintf_directive_n="guessing yes";;
+ # Guess yes on AIX >= 4.
+ aix[1-3]*) gl_cv_func_snprintf_directive_n="guessing no";;
+ aix*) gl_cv_func_snprintf_directive_n="guessing yes";;
+ # Guess yes on IRIX >= 6.5.
+ irix6.5) gl_cv_func_snprintf_directive_n="guessing yes";;
+ # Guess yes on OSF/1 >= 5.
+ osf[3-4]*) gl_cv_func_snprintf_directive_n="guessing no";;
+ osf*) gl_cv_func_snprintf_directive_n="guessing yes";;
+ # Guess yes on NetBSD >= 3.
+ netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*)
+ gl_cv_func_snprintf_directive_n="guessing no";;
+ netbsd*) gl_cv_func_snprintf_directive_n="guessing yes";;
+ # Guess yes on BeOS.
+ beos*) gl_cv_func_snprintf_directive_n="guessing yes";;
+ # If we don't know, assume the worst.
+ *) gl_cv_func_snprintf_directive_n="guessing no";;
esac
changequote([,])dnl
])
dnl
dnl 1 = gl_PRINTF_SIZES_C99
dnl 2 = gl_PRINTF_DIRECTIVE_A
-dnl 3 = gl_PRINTF_DIRECTIVE_N
-dnl 4 = gl_PRINTF_POSITIONS
-dnl 5 = gl_SNPRINTF_PRESENCE
-dnl 6 = gl_SNPRINTF_TRUNCATION_C99
-dnl 7 = gl_SNPRINTF_RETVAL_C99
+dnl 3 = gl_PRINTF_DIRECTIVE_F
+dnl 4 = gl_PRINTF_DIRECTIVE_N
+dnl 5 = gl_PRINTF_POSITIONS
+dnl 6 = gl_SNPRINTF_PRESENCE
+dnl 7 = gl_SNPRINTF_TRUNCATION_C99
+dnl 8 = gl_SNPRINTF_RETVAL_C99
+dnl 9 = gl_SNPRINTF_DIRECTIVE_N
dnl
dnl 1 = checking whether printf supports size specifiers as in C99...
dnl 2 = checking whether printf supports the 'a' and 'A' directives...
-dnl 3 = checking whether printf supports the 'n' directive...
-dnl 4 = checking whether printf supports POSIX/XSI format strings with positions...
-dnl 5 = checking for snprintf...
-dnl 6 = checking whether snprintf truncates the result as in C99...
-dnl 7 = checking whether snprintf returns a byte count as in C99...
+dnl 3 = checking whether printf supports the 'F' directive...
+dnl 4 = checking whether printf supports the 'n' directive...
+dnl 5 = checking whether printf supports POSIX/XSI format strings with positions...
+dnl 6 = checking for snprintf...
+dnl 7 = checking whether snprintf truncates the result as in C99...
+dnl 8 = checking whether snprintf returns a byte count as in C99...
+dnl 9 = checking whether snprintf fully supports the 'n' directive...
dnl
dnl . = yes, # = no.
dnl
-dnl 1 2 3 4 5 6 7
-dnl glibc 2.3.6 . . . . . . .
-dnl FreeBSD 5.4, 6.1 . . . . . . .
-dnl MacOS X 10.3.9 . . . . . . .
-dnl Cygwin 2007 . # . . . . .
-dnl Solaris 10 . # . . . . .
-dnl Solaris 2.6 ... 9 # # . . . . .
-dnl Solaris 2.5.1 # # . . # # #
-dnl AIX 4.3.2, 5.1 # # . . . . .
-dnl HP-UX 11.31 . # . . . . #
-dnl HP-UX 11.00, 11.11, 11.23 # # . . . . #
-dnl HP-UX 10.20 # # # ? . ? #
-dnl IRIX 6.5 # # . . . . #
-dnl OSF/1 5.1 # # . . . . #
-dnl OSF/1 4.0d # # . . # # #
-dnl NetBSD 3.0 . # . # . . .
-dnl BeOS # # . # . . .
-dnl mingw # # . # . # #
+dnl 1 2 3 4 5 6 7 8 9
+dnl glibc 2.5 . . . . . . . . .
+dnl glibc 2.3.6 . # . . . . . . .
+dnl FreeBSD 5.4, 6.1 . ? . . . . . . .
+dnl MacOS X 10.3.9 . # . . . . . . .
+dnl OpenBSD 3.9, 4.0 . # ? . . . . . ?
+dnl Cygwin 2007 . # # . . . . . ?
+dnl Cygwin 2006 # # # . . . . . ?
+dnl Solaris 10 . # . . . . . . .
+dnl Solaris 2.6 ... 9 # # # . . . . . .
+dnl Solaris 2.5.1 # # # . . # # # #
+dnl AIX 5.2 . # . . . . . . .
+dnl AIX 4.3.2, 5.1 # # # . . . . . .
+dnl HP-UX 11.31 . # . . . . . # #
+dnl HP-UX 10.20, 11.00, 11.11, 11.23 # # # . . . . # #
+dnl IRIX 6.5 # # # . . . . # .
+dnl OSF/1 5.1 # # # . . . . # .
+dnl OSF/1 4.0d # # # . . # # # #
+dnl NetBSD 4.0 . ? ? . . . . . ?
+dnl NetBSD 3.0 . # ? . # . . . .
+dnl BeOS # # ? . # . . . .
+dnl mingw # # # . # . # # #
projects / gnulib.git / blobdiff