src/include/stdio.h, branch releng/7.3

MFC

2008-03-29T22:53:54Z

stdio.h: 1.61 Allow an application to define FOPEN_MAX (like we allow for OPEN_MAX in sys/syslimits.h). awk/Makefile: 1.17 Allow awk to handle 64 files instead of just 20.

- Remove SEEK_DATA and SEEK_HOLE from stdio.h, they don't belong here.

2007-04-07T16:02:30Z

- Only define SEEK_DATA and SEEK_HOLE in sys/unistd.h when neither _POSIX_SOURCE nor _XOPEN_SOURCE is defined. Pointed out by: bde, ache

Implement SEEK_DATA and SEEK_HOLE extensions to lseek(2) as found in

2007-04-05T21:10:53Z

OpenSolaris. For more information please refer to: http://blogs.sun.com/bonwick/entry/seek_hole_and_seek_data

Add a prototype for fcloseall().

2006-04-22T15:10:11Z

Analogous to printflike and scanflike, add the macro __format_arg which

2006-01-26T20:53:40Z

expands to the GCC format_arg attribute if supported. This fixes a syntax error in for compilers/tools not implementing the GCC __attribute__ extensions.

Remove outdated comments.

2004-06-20T10:01:30Z

Bring back the macro versions of getwc(), getwchar(), putwc() and

2004-05-27T10:08:44Z

putwchar(), but this time avoid redundantly declaring __stdinp and __stdoutp when source files include both and .

Parenthesize function names in masking macros for getc() etc. for the

2004-03-20T11:45:52Z

benefit of obsolete C preprocessors.

Re-add macro versions of getc(), getchar(), putc(), putchar(), feof(),

2004-03-17T01:43:08Z

ferror(), fileno() and clearerr(), using the value of __isthreaded to decide between the fast inline single-threaded code and the more general function equivalent. This gives most of the performance benefits of the old unsafe macros while preserving thread safety.

Change the definition of NULL on ia64 (for LP64 compilations) from

2003-12-07T21:10:06Z

an int constant to a long constant. This change improves consistency in the following two ways: 1. The first 8 arguments are always passed in registers on ia64, which by virtue of the generated code implicitly widens ints to longs and allows the use of an 32-bit integral type for 64-bit arguments. Subsequent arguments are passed onto the memory stack, which does not exhibit the same behaviour and consequently do not allow this. In practice this means that variadic functions taking pointers and given NULL (without cast) work as long as the NULL is passed in one of the first 8 arguments. A SIGSEGV is more likely the result if such would be done for stack-based arguments. This is due to the fact that the upper 4 bytes remain undefined. 2. All 64-bit platforms that FreeBSD supports, with the obvious exception of ia64, allow 32-bit integral types (specifically NULL) when 64-bit pointers are expected in variadic functions by way of how the compiler generates code. As such, code that works correctly (whether rightfully so or not) on any platform other than ia64, may fail on ia64. To more easily allow tweaking of the definition of NULL, this commit removes the 12 definitions in the various headers and puts it in a new header that can be included whenever NULL is to be made visible. This commit fixes GNOME, emacs, xemacs and a whole bunch of ports that I don't particularly care about at this time...