about summary refs log tree commit diff
path: root/libio/bits/stdio.h
diff options
context:
space:
mode:
authorUlrich Drepper <drepper@redhat.com>1998-11-16 12:02:08 +0000
committerUlrich Drepper <drepper@redhat.com>1998-11-16 12:02:08 +0000
commit8b7fb5883bf50ab866f785b9cb36c8167f7a3286 (patch)
tree4f4b8ccad0fec4529b7876a9a5c646f9b28691d1 /libio/bits/stdio.h
parentbe1d9d95b122ee20f8217e9263e088dec652543a (diff)
downloadglibc-8b7fb5883bf50ab866f785b9cb36c8167f7a3286.tar.gz
glibc-8b7fb5883bf50ab866f785b9cb36c8167f7a3286.tar.xz
glibc-8b7fb5883bf50ab866f785b9cb36c8167f7a3286.zip
Update.
1998-11-16  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/opendir.c: Use o_directory_works differently.  Treat
	zero value as uninitialized so that variable can go into .bss.

	* dirent/opendir-tst1.c: Print error strings to stdout.

	* sysdeps/unix/sysv/linux/mmap64.c: New file.  Empty.
	* sysdeps/unix/sysv/linux/syscalls.list: Add mmap with mmap64 alias.
	* sysdeps/unix/sysv/linux/arm/mmap.S: Add mmap64 alias.
	* sysdeps/unix/sysv/linux/i386/mmap.S: Likewise.
	* sysdeps/unix/sysv/linux/m68k/mmap.S: Likewise.

1998-11-16  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>

	* time/tzfile.c (__tzfile_read): Check that types[i].isdst is in
	range.

1998-11-16  Ulrich Drepper  <drepper@cygnus.com>

	* libio/bits/stdio.h (fread_unlocked): Do handle zero size and number.
	(fwrite_unlocked): Likewise.

1998-11-16  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>

	* libio/bits/stdio.h (fread_unlocked): Don't evaluate non-constant
	twice.  Don't bother handling zero size.
	(frwite_unlocked): Likewise.

1998-11-15  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>

	* configure.in: Fix regex for makeinfo version string.

1998-11-15  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>

	* sunrpc/rpc_sample.c (write_sample_server): Avoid -Wparentheses
	warning.
	* sunrpc/rpc_svcout.c (write_program): Likewise.

1998-11-15  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>

	* time/Makefile (CFLAGS-test_time.c): Add -Wno-format.

1998-11-16  Ulrich Drepper  <drepper@cygnus.com

	* misc/sys/mman.h: Pretty print prototypes.

1998-11-15  Ulrich Drepper  <drepper@cygnus.com

	* misc/error.c (error): Don't use result of strerror_r call directly
	since at least DEC Unix has a wrong return type.
	Patch by Johan Danielsson <joda@pdc.kth.se>.

1998-11-16  Andreas Schwab  <schwab@issan.cs.uni-dortmund.de>
Diffstat (limited to 'libio/bits/stdio.h')
-rw-r--r--libio/bits/stdio.h53
1 files changed, 23 insertions, 30 deletions
diff --git a/libio/bits/stdio.h b/libio/bits/stdio.h
index a3e3d6fc8d..8a15c6e6a6 100644
--- a/libio/bits/stdio.h
+++ b/libio/bits/stdio.h
@@ -127,48 +127,41 @@ ferror_unlocked (FILE *__stream) __THROW
 #if defined __USE_MISC && defined __GNUC__ && defined __OPTIMIZE__
 /* Perform some simple optimizations.  */
 # define fread_unlocked(ptr, size, n, stream) \
-  (__extension__ ((((__builtin_constant_p (size)			      \
-		     && ((size) == 0 || __builtin_constant_p (n)))	      \
-		    || (__builtin_constant_p (n) && (n) == 0))		      \
-		   && (size_t) ((size) * (n)) <= 8)			      \
+  (__extension__ ((__builtin_constant_p (size) && __builtin_constant_p (n)    \
+		   && (size_t) ((size) * (n)) <= 8 && (size) != 0)	      \
 		  ? ({ char *__ptr = (char *) (ptr);			      \
 		       FILE *__stream = (stream);			      \
-		       size_t __size = (size);				      \
-		       size_t __n = (n);				      \
-		       size_t __readres = __n;				      \
-		       size_t __cnt = __size * __n + 1;			      \
-		       while (--__cnt > 0)				      \
+		       size_t __cnt;					      \
+		       for (__cnt = (size) * (n); __cnt > 0; --__cnt)	      \
 			 {						      \
 			   int __c = _IO_getc_unlocked (__stream);	      \
 			   if (__c == EOF)				      \
-			     {						      \
-			       __readres = (__size * __n - __cnt) / __size;   \
-			       break;					      \
-			     }						      \
+			     break;					      \
 			   *__ptr++ = __c;				      \
 			 }						      \
-		       __readres; })					      \
-		  : fread_unlocked (ptr, size, n, stream)))
+		       ((size_t) ((size) * (n)) - __cnt) / (size); })	      \
+		  : (((__builtin_constant_p (size) && (size) == 0)	      \
+		      || (__builtin_constant_p (n) && (n) == 0))	      \
+			/* Evaluate all parameters once.  */		      \
+		     ? ((void) (ptr), (void) (stream), (void) (size),	      \
+			(void) n, 0)					      \
+		     : fread_unlocked (ptr, size, n, stream))))
 
 # define fwrite_unlocked(ptr, size, n, stream) \
-  (__extension__ ((((__builtin_constant_p (size)			      \
-		     && ((size) == 0 || __builtin_constant_p (n)))	      \
-		    || (__builtin_constant_p (n) && (n) == 0))		      \
-		   && (size_t) ((size) * (n)) <= 8)			      \
+  (__extension__ ((__builtin_constant_p (size) && __builtin_constant_p (n)    \
+		   && (size_t) ((size) * (n)) <= 8 && (size) != 0)	      \
 		  ? ({ const char *__ptr = (const char *) (ptr);	      \
 		       FILE *__stream = (stream);			      \
-		       size_t __size = (size);				      \
-		       size_t __n = (n);				      \
-		       size_t __writeres = __n;				      \
-		       size_t __cnt = __size * __n + 1;			      \
-		       while (--__cnt > 0)				      \
+		       size_t __cnt;					      \
+		       for (__cnt = (size) * (n); __cnt > 0; --__cnt)	      \
 			 if (_IO_putc_unlocked (*__ptr++, __stream) == EOF)   \
-			   {						      \
-			     __writeres = (__size * __n - __cnt) / __size;    \
-			     break;					      \
-			   }						      \
-		       __writeres; })					      \
-		  : fwrite_unlocked (ptr, size, n, stream)))
+			   break;					      \
+		       ((size_t) ((size) * (n)) - __cnt) / (size); })	      \
+		  : (((__builtin_constant_p (size) && (size) == 0)	      \
+		      || (__builtin_constant_p (n) && (n) == 0))	      \
+			/* Evaluate all parameters once.  */		      \
+		     ? ((void) (ptr), (void) (stream), (void) (size), n)      \
+		     : fwrite_unlocked (ptr, size, n, stream))))
 #endif
 
 /* Define helper macro.  */