diff options
Diffstat (limited to 'stdlib')
| -rw-r--r-- | stdlib/stdlib.h | 65 |
1 files changed, 60 insertions, 5 deletions
diff --git a/stdlib/stdlib.h b/stdlib/stdlib.h index 3448553e11..db624dea16 100644 --- a/stdlib/stdlib.h +++ b/stdlib/stdlib.h @@ -1,4 +1,4 @@ -/* Copyright (C) 1991,92,93,94,95,96,97,98,99 Free Software Foundation, Inc. +/* Copyright (C) 1991-1999, 2000 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -32,6 +32,61 @@ #endif #include <stddef.h> +#ifdef __USE_XOPEN +/* XPG requires a few symbols from <sys/wait.h> being defined. */ +# include <bits/waitflags.h> +# include <bits/waitstatus.h> + +# ifndef WEXITSTATUS +# ifdef __USE_BSD + +/* Lots of hair to allow traditional BSD use of `union wait' + as well as POSIX.1 use of `int' for the status word. */ + +# if defined __GNUC__ && !defined __cplusplus +# define __WAIT_INT(status) \ + (__extension__ ({ union { __typeof(status) __in; int __i; } __u; \ + __u.__in = (status); __u.__i; })) +# else +# define __WAIT_INT(status) (*(int *) &(status)) +# endif + +/* This is the type of the argument to `wait'. The funky union + causes redeclarations with ether `int *' or `union wait *' to be + allowed without complaint. __WAIT_STATUS_DEFN is the type used in + the actual function definitions. */ + +# if !defined __GNUC__ || __GNUC__ < 2 || defined __cplusplus +# define __WAIT_STATUS void * +# define __WAIT_STATUS_DEFN void * +# else +/* This works in GCC 2.6.1 and later. */ +typedef union + { + union wait *__uptr; + int *__iptr; + } __WAIT_STATUS __attribute__ ((__transparent_union__)); +# define __WAIT_STATUS_DEFN int * +# endif + +# else /* Don't use BSD. */ + +# define __WAIT_INT(status) (status) +# define __WAIT_STATUS int * +# define __WAIT_STATUS_DEFN int * + +# endif /* Use BSD. */ + +/* Define the macros <sys/wait.h> also would define this way. */ +# define WEXITSTATUS(status) __WEXITSTATUS(__WAIT_INT(status)) +# define WTERMSIG(status) __WTERMSIG(__WAIT_INT(status)) +# define WSTOPSIG(status) __WSTOPSIG(__WAIT_INT(status)) +# define WIFEXITED(status) __WIFEXITED(__WAIT_INT(status)) +# define WIFSIGNALED(status) __WIFSIGNALED(__WAIT_INT(status)) +# define WIFSTOPPED(status) __WIFSTOPPED(__WAIT_INT(status)) +# endif +#endif + __BEGIN_DECLS #ifndef __need_malloc_and_calloc @@ -350,12 +405,12 @@ extern void srandom (unsigned int __seed) __THROW; of length STATELEN, and seed it with SEED. Optimal lengths are 8, 16, 32, 64, 128 and 256, the bigger the better; values less than 8 will cause an error and values greater than 256 will be rounded down. */ -extern void *initstate (unsigned int __seed, void *__statebuf, +extern char *initstate (unsigned int __seed, char *__statebuf, size_t __statelen) __THROW; /* Switch the random number generator to state buffer STATEBUF, which should have been previously initialized by `initstate'. */ -extern void *setstate (void *__statebuf) __THROW; +extern char *setstate (__const char *__statebuf) __THROW; # ifdef __USE_MISC @@ -379,11 +434,11 @@ extern int random_r (struct random_data *__restrict __buf, extern int srandom_r (unsigned int __seed, struct random_data *__buf) __THROW; -extern int initstate_r (unsigned int __seed, void *__restrict __statebuf, +extern int initstate_r (unsigned int __seed, char *__restrict __statebuf, size_t __statelen, struct random_data *__restrict __buf) __THROW; -extern int setstate_r (void *__restrict __statebuf, +extern int setstate_r (char *__restrict __statebuf, struct random_data *__restrict __buf) __THROW; # endif /* Use misc. */ #endif /* Use SVID || extended X/Open. */ |