# HG changeset patch
# User Bruno Haible <bruno@clisp.org>
# Date 1290903837 -3600
# Node ID 4b4e2b0d175e452eecab5d44f7cb347d4f641052
# Parent  7538e932b775eb9d19c894d208a1dfb820878749
*printf-posix: Detect a bug on Solaris 10/x86.

* m4/printf.m4 (gl_PRINTF_PRECISION): Detect crash with large precision
for floating-point output.
* tests/test-vasnprintf-posix.c (test_function): Test precision with %f
directive.
* tests/test-snprintf-posix.h (test_function): Likewise.
* tests/test-sprintf-posix.h (test_function): Likewise.
* tests/test-vasprintf-posix.c (test_function): Likewise.
* doc/posix-functions/fprintf.texi: Mention Solaris/x86 bug.
* doc/posix-functions/printf.texi: Likewise.
* doc/posix-functions/snprintf.texi: Likewise.
* doc/posix-functions/sprintf.texi: Likewise.
* doc/posix-functions/vfprintf.texi: Likewise.
* doc/posix-functions/vprintf.texi: Likewise.
* doc/posix-functions/vsnprintf.texi: Likewise.
* doc/posix-functions/vsprintf.texi: Likewise.
* doc/glibc-functions/obstack_printf.texi: Likewise.
* doc/glibc-functions/obstack_vprintf.texi: Likewise.

diff --git a/ChangeLog b/ChangeLog
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,24 @@
+2010-11-27  Bruno Haible  <bruno@clisp.org>
+
+	*printf-posix: Detect a bug on Solaris 10/x86.
+	* m4/printf.m4 (gl_PRINTF_PRECISION): Detect crash with large precision
+	for floating-point output.
+	* tests/test-vasnprintf-posix.c (test_function): Test precision with %f
+	directive.
+	* tests/test-snprintf-posix.h (test_function): Likewise.
+	* tests/test-sprintf-posix.h (test_function): Likewise.
+	* tests/test-vasprintf-posix.c (test_function): Likewise.
+	* doc/posix-functions/fprintf.texi: Mention Solaris/x86 bug.
+	* doc/posix-functions/printf.texi: Likewise.
+	* doc/posix-functions/snprintf.texi: Likewise.
+	* doc/posix-functions/sprintf.texi: Likewise.
+	* doc/posix-functions/vfprintf.texi: Likewise.
+	* doc/posix-functions/vprintf.texi: Likewise.
+	* doc/posix-functions/vsnprintf.texi: Likewise.
+	* doc/posix-functions/vsprintf.texi: Likewise.
+	* doc/glibc-functions/obstack_printf.texi: Likewise.
+	* doc/glibc-functions/obstack_vprintf.texi: Likewise.
+
 2010-11-27  Bruno Haible  <bruno@clisp.org>
 
 	Fix link error when module libunistring-optional is in use.
diff --git a/doc/glibc-functions/obstack_printf.texi b/doc/glibc-functions/obstack_printf.texi
--- a/doc/glibc-functions/obstack_printf.texi
+++ b/doc/glibc-functions/obstack_printf.texi
@@ -59,7 +59,7 @@
 @item
 This function does not support precisions larger than 512 or 1024 in integer,
 floating-point and pointer output on some platforms:
-mingw, BeOS.
+Solaris 10/x86, mingw, BeOS.
 @item
 This function can crash in out-of-memory conditions on some platforms:
 MacOS X 10.3, FreeBSD 6.0, NetBSD 5.0.
diff --git a/doc/glibc-functions/obstack_vprintf.texi b/doc/glibc-functions/obstack_vprintf.texi
--- a/doc/glibc-functions/obstack_vprintf.texi
+++ b/doc/glibc-functions/obstack_vprintf.texi
@@ -59,7 +59,7 @@
 @item
 This function does not support precisions larger than 512 or 1024 in integer,
 floating-point and pointer output on some platforms:
-mingw, BeOS.
+Solaris 10/x86, mingw, BeOS.
 @item
 This function can crash in out-of-memory conditions on some platforms:
 MacOS X 10.3, FreeBSD 6.0, NetBSD 5.0.
diff --git a/doc/posix-functions/fprintf.texi b/doc/posix-functions/fprintf.texi
--- a/doc/posix-functions/fprintf.texi
+++ b/doc/posix-functions/fprintf.texi
@@ -53,7 +53,7 @@
 @item
 This function does not support precisions larger than 512 or 1024 in integer,
 floating-point and pointer output on some platforms:
-mingw, BeOS.
+Solaris 10/x86, mingw, BeOS.
 @item
 This function can crash in out-of-memory conditions on some platforms:
 MacOS X 10.3, FreeBSD 6.0, NetBSD 5.0.
diff --git a/doc/posix-functions/printf.texi b/doc/posix-functions/printf.texi
--- a/doc/posix-functions/printf.texi
+++ b/doc/posix-functions/printf.texi
@@ -53,7 +53,7 @@
 @item
 This function does not support precisions larger than 512 or 1024 in integer,
 floating-point and pointer output on some platforms:
-mingw, BeOS.
+Solaris 10/x86, mingw, BeOS.
 @item
 This function can crash in out-of-memory conditions on some platforms:
 MacOS X 10.3, FreeBSD 6.0, NetBSD 5.0.
diff --git a/doc/posix-functions/snprintf.texi b/doc/posix-functions/snprintf.texi
--- a/doc/posix-functions/snprintf.texi
+++ b/doc/posix-functions/snprintf.texi
@@ -64,7 +64,7 @@
 @item
 This function does not support precisions larger than 512 or 1024 in integer,
 floating-point and pointer output on some platforms:
-mingw, BeOS.
+Solaris 10/x86, mingw, BeOS.
 @item
 This function can crash in out-of-memory conditions on some platforms:
 MacOS X 10.3, FreeBSD 6.0, NetBSD 5.0.
diff --git a/doc/posix-functions/sprintf.texi b/doc/posix-functions/sprintf.texi
--- a/doc/posix-functions/sprintf.texi
+++ b/doc/posix-functions/sprintf.texi
@@ -53,7 +53,7 @@
 @item
 This function does not support precisions larger than 512 or 1024 in integer,
 floating-point and pointer output on some platforms:
-mingw, BeOS.
+Solaris 10/x86, mingw, BeOS.
 @item
 This function can crash in out-of-memory conditions on some platforms:
 MacOS X 10.3, FreeBSD 6.0, NetBSD 5.0.
diff --git a/doc/posix-functions/vfprintf.texi b/doc/posix-functions/vfprintf.texi
--- a/doc/posix-functions/vfprintf.texi
+++ b/doc/posix-functions/vfprintf.texi
@@ -53,7 +53,7 @@
 @item
 This function does not support precisions larger than 512 or 1024 in integer,
 floating-point and pointer output on some platforms:
-mingw, BeOS.
+Solaris 10/x86, mingw, BeOS.
 @item
 This function can crash in out-of-memory conditions on some platforms:
 MacOS X 10.3, FreeBSD 6.0, NetBSD 5.0.
diff --git a/doc/posix-functions/vprintf.texi b/doc/posix-functions/vprintf.texi
--- a/doc/posix-functions/vprintf.texi
+++ b/doc/posix-functions/vprintf.texi
@@ -53,7 +53,7 @@
 @item
 This function does not support precisions larger than 512 or 1024 in integer,
 floating-point and pointer output on some platforms:
-mingw, BeOS.
+Solaris 10/x86, mingw, BeOS.
 @item
 This function can crash in out-of-memory conditions on some platforms:
 MacOS X 10.3, FreeBSD 6.0, NetBSD 5.0.
diff --git a/doc/posix-functions/vsnprintf.texi b/doc/posix-functions/vsnprintf.texi
--- a/doc/posix-functions/vsnprintf.texi
+++ b/doc/posix-functions/vsnprintf.texi
@@ -64,7 +64,7 @@
 @item
 This function does not support precisions larger than 512 or 1024 in integer,
 floating-point and pointer output on some platforms:
-mingw, BeOS.
+Solaris 10/x86, mingw, BeOS.
 @item
 This function can crash in out-of-memory conditions on some platforms:
 MacOS X 10.3, FreeBSD 6.0, NetBSD 5.0.
diff --git a/doc/posix-functions/vsprintf.texi b/doc/posix-functions/vsprintf.texi
--- a/doc/posix-functions/vsprintf.texi
+++ b/doc/posix-functions/vsprintf.texi
@@ -53,7 +53,7 @@
 @item
 This function does not support precisions larger than 512 or 1024 in integer,
 floating-point and pointer output on some platforms:
-mingw, BeOS.
+Solaris 10/x86, mingw, BeOS.
 @item
 This function can crash in out-of-memory conditions on some platforms:
 MacOS X 10.3, FreeBSD 6.0, NetBSD 5.0.
diff --git a/m4/printf.m4 b/m4/printf.m4
--- a/m4/printf.m4
+++ b/m4/printf.m4
@@ -1,4 +1,4 @@
-# printf.m4 serial 38
+# printf.m4 serial 39
 dnl Copyright (C) 2003, 2007-2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -882,8 +882,9 @@
 
 dnl Test whether the *printf family of functions supports large precisions.
 dnl On mingw, precisions larger than 512 are treated like 512, in integer,
-dnl floating-point or pointer output. On BeOS, precisions larger than 1044
-dnl crash the program.
+dnl floating-point or pointer output. On Solaris 10/x86, precisions larger
+dnl than 510 in floating-point output crash the program. On BeOS, precisions
+dnl larger than 1044 crash the program.
 dnl Result is gl_cv_func_printf_precision.
 
 AC_DEFUN([gl_PRINTF_PRECISION],
@@ -906,6 +907,8 @@
 #endif
   if (sprintf (buf, "%.4000d %d", 1, 33, 44) < 4000 + 3)
     return 1;
+  if (sprintf (buf, "%.4000f %d", 1.0, 33, 44) < 4000 + 5)
+    return 2;
   return 0;
 }]])],
         [gl_cv_func_printf_precision=yes],
@@ -913,7 +916,8 @@
         [
 changequote(,)dnl
          case "$host_os" in
-           # Guess no only on native Win32 and BeOS systems.
+           # Guess no only on Solaris, native Win32, and BeOS systems.
+           solaris*)     gl_cv_func_printf_precision="guessing no" ;;
            mingw* | pw*) gl_cv_func_printf_precision="guessing no" ;;
            beos*)        gl_cv_func_printf_precision="guessing no" ;;
            *)            gl_cv_func_printf_precision="guessing yes" ;;
@@ -1438,7 +1442,7 @@
 dnl   Cygwin 1.7.0 (2009)            .  .  .  #  .  .  .  ?  .  .  .  .  .  ?  .  .  .  .  .  .
 dnl   Cygwin 1.5.25 (2008)           .  .  .  #  #  .  .  #  .  .  .  .  .  #  .  .  .  .  .  .
 dnl   Cygwin 1.5.19 (2006)           #  .  .  #  #  #  .  #  .  #  .  #  #  #  .  .  .  .  .  .
-dnl   Solaris 10                     .  .  #  #  #  .  .  #  .  .  .  #  .  .  .  .  .  .  .  .
+dnl   Solaris 10                     .  .  #  #  #  .  .  #  .  .  .  #  #  .  .  .  .  .  .  .
 dnl   Solaris 2.6 ... 9              #  .  #  #  #  #  .  #  .  .  .  #  .  .  .  .  .  .  .  .
 dnl   Solaris 2.5.1                  #  .  #  #  #  #  .  #  .  .  .  #  .  .  #  #  #  #  #  #
 dnl   AIX 5.2, 7.1                   .  .  #  #  #  .  .  .  .  .  .  #  .  .  .  .  .  .  .  .
diff --git a/tests/test-snprintf-posix.h b/tests/test-snprintf-posix.h
--- a/tests/test-snprintf-posix.h
+++ b/tests/test-snprintf-posix.h
@@ -3032,6 +3032,19 @@
   }
 
   {
+    char result[5000];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.4000f %d", 1.0, 99);
+    size_t i;
+    ASSERT (result[0] == '1');
+    ASSERT (result[1] == '.');
+    for (i = 0; i < 4000; i++)
+      ASSERT (result[2 + i] == '0');
+    ASSERT (strcmp (result + 2 + 4000, " 99") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  {
     char input[5000];
     char result[5000];
     int retval;
diff --git a/tests/test-sprintf-posix.h b/tests/test-sprintf-posix.h
--- a/tests/test-sprintf-posix.h
+++ b/tests/test-sprintf-posix.h
@@ -3018,6 +3018,19 @@
   }
 
   {
+    char result[5000];
+    int retval =
+      my_sprintf (result, "%.4000f %d", 1.0, 99);
+    size_t i;
+    ASSERT (result[0] == '1');
+    ASSERT (result[1] == '.');
+    for (i = 0; i < 4000; i++)
+      ASSERT (result[2 + i] == '0');
+    ASSERT (strcmp (result + 2 + 4000, " 99") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  {
     char input[5000];
     char result[5000];
     int retval;
diff --git a/tests/test-vasnprintf-posix.c b/tests/test-vasnprintf-posix.c
--- a/tests/test-vasnprintf-posix.c
+++ b/tests/test-vasnprintf-posix.c
@@ -3553,6 +3553,21 @@
   }
 
   {
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.4000f %d", 1.0, 99);
+    size_t i;
+    ASSERT (result != NULL);
+    ASSERT (result[0] == '1');
+    ASSERT (result[1] == '.');
+    for (i = 0; i < 4000; i++)
+      ASSERT (result[2 + i] == '0');
+    ASSERT (strcmp (result + 2 + 4000, " 99") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  {
     char input[5000];
     size_t length;
     char *result;
diff --git a/tests/test-vasprintf-posix.c b/tests/test-vasprintf-posix.c
--- a/tests/test-vasprintf-posix.c
+++ b/tests/test-vasprintf-posix.c
@@ -3533,6 +3533,21 @@
   }
 
   {
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.4000f %d", 1.0, 99);
+    size_t i;
+    ASSERT (result != NULL);
+    ASSERT (result[0] == '1');
+    ASSERT (result[1] == '.');
+    for (i = 0; i < 4000; i++)
+      ASSERT (result[2 + i] == '0');
+    ASSERT (strcmp (result + 2 + 4000, " 99") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  {
     char input[5000];
     char *result;
     int retval;