aboutsummaryrefslogtreecommitdiff
path: root/libio/stdio.h
diff options
context:
space:
mode:
Diffstat (limited to 'libio/stdio.h')
-rw-r--r--libio/stdio.h395
1 files changed, 273 insertions, 122 deletions
diff --git a/libio/stdio.h b/libio/stdio.h
index 3acaa8bd97..f98d38ff32 100644
--- a/libio/stdio.h
+++ b/libio/stdio.h
@@ -1,5 +1,5 @@
/* Define ISO C stdio on top of C++ iostreams.
- Copyright (C) 1991,1994-1999,2000,01,02 Free Software Foundation, Inc.
+ Copyright (C) 1991,1994-2002,2003 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
@@ -156,25 +156,28 @@ __END_NAMESPACE_STD
__BEGIN_NAMESPACE_STD
-/* Create a temporary file and open it read/write. */
+/* Create a temporary file and open it read/write.
+
+ This function is a possible cancellation points and therefore not
+ marked with __THROW. */
#ifndef __USE_FILE_OFFSET64
-extern FILE *tmpfile (void) __THROW;
+extern FILE *tmpfile (void);
#else
# ifdef __REDIRECT
-extern FILE *__REDIRECT (tmpfile, (void) __THROW, tmpfile64);
+extern FILE *__REDIRECT (tmpfile, (void), tmpfile64);
# else
# define tmpfile tmpfile64
# endif
#endif
+#ifdef __USE_LARGEFILE64
+extern FILE *tmpfile64 (void);
+#endif
+
/* Generate a temporary filename. */
extern char *tmpnam (char *__s) __THROW;
__END_NAMESPACE_STD
-#ifdef __USE_LARGEFILE64
-extern FILE *tmpfile64 (void) __THROW;
-#endif
-
#ifdef __USE_MISC
/* This is the reentrant variant of `tmpnam'. The only difference is
that it does not allow S to be NULL. */
@@ -196,41 +199,61 @@ extern char *tempnam (__const char *__dir, __const char *__pfx)
__BEGIN_NAMESPACE_STD
-/* Close STREAM. */
-extern int fclose (FILE *__stream) __THROW;
-/* Flush STREAM, or all streams if STREAM is NULL. */
-extern int fflush (FILE *__stream) __THROW;
+/* Close STREAM.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int fclose (FILE *__stream);
+/* Flush STREAM, or all streams if STREAM is NULL.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int fflush (FILE *__stream);
__END_NAMESPACE_STD
#ifdef __USE_MISC
-/* Faster versions when locking is not required. */
-extern int fflush_unlocked (FILE *__stream) __THROW;
+/* Faster versions when locking is not required.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern int fflush_unlocked (FILE *__stream);
#endif
#ifdef __USE_GNU
-/* Close all streams. */
-extern int fcloseall (void) __THROW;
+/* Close all streams.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern int fcloseall (void);
#endif
__BEGIN_NAMESPACE_STD
#ifndef __USE_FILE_OFFSET64
-/* Open a file and create a new stream for it. */
+/* Open a file and create a new stream for it.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
extern FILE *fopen (__const char *__restrict __filename,
- __const char *__restrict __modes) __THROW;
-/* Open a file, replacing an existing stream with it. */
+ __const char *__restrict __modes);
+/* Open a file, replacing an existing stream with it.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
extern FILE *freopen (__const char *__restrict __filename,
__const char *__restrict __modes,
- FILE *__restrict __stream) __THROW;
+ FILE *__restrict __stream);
#else
# ifdef __REDIRECT
extern FILE *__REDIRECT (fopen, (__const char *__restrict __filename,
- __const char *__restrict __modes) __THROW,
- fopen64);
+ __const char *__restrict __modes), fopen64);
extern FILE *__REDIRECT (freopen, (__const char *__restrict __filename,
__const char *__restrict __modes,
- FILE *__restrict __stream) __THROW,
- freopen64);
+ FILE *__restrict __stream), freopen64);
# else
# define fopen fopen64
# define freopen freopen64
@@ -239,10 +262,10 @@ extern FILE *__REDIRECT (freopen, (__const char *__restrict __filename,
__END_NAMESPACE_STD
#ifdef __USE_LARGEFILE64
extern FILE *fopen64 (__const char *__restrict __filename,
- __const char *__restrict __modes) __THROW;
+ __const char *__restrict __modes);
extern FILE *freopen64 (__const char *__restrict __filename,
__const char *__restrict __modes,
- FILE *__restrict __stream) __THROW;
+ FILE *__restrict __stream);
#endif
#ifdef __USE_POSIX
@@ -291,21 +314,32 @@ extern void setlinebuf (FILE *__stream) __THROW;
__BEGIN_NAMESPACE_STD
-/* Write formatted output to STREAM. */
+/* Write formatted output to STREAM.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
extern int fprintf (FILE *__restrict __stream,
- __const char *__restrict __format, ...) __THROW;
-/* Write formatted output to stdout. */
-extern int printf (__const char *__restrict __format, ...) __THROW;
+ __const char *__restrict __format, ...);
+/* Write formatted output to stdout.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int printf (__const char *__restrict __format, ...);
/* Write formatted output to S. */
extern int sprintf (char *__restrict __s,
__const char *__restrict __format, ...) __THROW;
-/* Write formatted output to S from argument list ARG. */
+/* Write formatted output to S from argument list ARG.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
extern int vfprintf (FILE *__restrict __s, __const char *__restrict __format,
- _G_va_list __arg) __THROW;
-/* Write formatted output to stdout from argument list ARG. */
-extern int vprintf (__const char *__restrict __format, _G_va_list __arg)
- __THROW;
+ _G_va_list __arg);
+/* Write formatted output to stdout from argument list ARG.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int vprintf (__const char *__restrict __format, _G_va_list __arg);
/* Write formatted output to S from argument list ARG. */
extern int vsprintf (char *__restrict __s, __const char *__restrict __format,
_G_va_list __arg) __THROW;
@@ -337,21 +371,32 @@ extern int asprintf (char **__restrict __ptr,
__const char *__restrict __fmt, ...)
__THROW __attribute__ ((__format__ (__printf__, 2, 3)));
-/* Write formatted output to a file descriptor. */
+/* Write formatted output to a file descriptor.
+
+ These functions are not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation they are cancellation points and
+ therefore not marked with __THROW. */
extern int vdprintf (int __fd, __const char *__restrict __fmt,
_G_va_list __arg)
- __THROW __attribute__ ((__format__ (__printf__, 2, 0)));
+ __attribute__ ((__format__ (__printf__, 2, 0)));
extern int dprintf (int __fd, __const char *__restrict __fmt, ...)
- __THROW __attribute__ ((__format__ (__printf__, 2, 3)));
+ __attribute__ ((__format__ (__printf__, 2, 3)));
#endif
__BEGIN_NAMESPACE_STD
-/* Read formatted input from STREAM. */
+/* Read formatted input from STREAM.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
extern int fscanf (FILE *__restrict __stream,
- __const char *__restrict __format, ...) __THROW;
-/* Read formatted input from stdin. */
-extern int scanf (__const char *__restrict __format, ...) __THROW;
+ __const char *__restrict __format, ...);
+/* Read formatted input from stdin.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int scanf (__const char *__restrict __format, ...);
/* Read formatted input from S. */
extern int sscanf (__const char *__restrict __s,
__const char *__restrict __format, ...) __THROW;
@@ -359,14 +404,20 @@ __END_NAMESPACE_STD
#ifdef __USE_ISOC99
__BEGIN_NAMESPACE_C99
-/* Read formatted input from S into argument list ARG. */
+/* Read formatted input from S into argument list ARG.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
extern int vfscanf (FILE *__restrict __s, __const char *__restrict __format,
_G_va_list __arg)
- __THROW __attribute__ ((__format__ (__scanf__, 2, 0)));
+ __attribute__ ((__format__ (__scanf__, 2, 0)));
-/* Read formatted input from stdin into argument list ARG. */
+/* Read formatted input from stdin into argument list ARG.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
extern int vscanf (__const char *__restrict __format, _G_va_list __arg)
- __THROW __attribute__ ((__format__ (__scanf__, 1, 0)));
+ __attribute__ ((__format__ (__scanf__, 1, 0)));
/* Read formatted input from S into argument list ARG. */
extern int vsscanf (__const char *__restrict __s,
@@ -377,12 +428,18 @@ __END_NAMESPACE_C99
__BEGIN_NAMESPACE_STD
-/* Read a character from STREAM. */
-extern int fgetc (FILE *__stream) __THROW;
-extern int getc (FILE *__stream) __THROW;
+/* Read a character from STREAM.
+
+ These functions are possible cancellation points and therefore not
+ marked with __THROW. */
+extern int fgetc (FILE *__stream);
+extern int getc (FILE *__stream);
-/* Read a character from stdin. */
-extern int getchar (void) __THROW;
+/* Read a character from stdin.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int getchar (void);
__END_NAMESPACE_STD
/* The C standard explicitly says this is a macro, so we always do the
@@ -390,24 +447,38 @@ __END_NAMESPACE_STD
#define getc(_fp) _IO_getc (_fp)
#if defined __USE_POSIX || defined __USE_MISC
-/* These are defined in POSIX.1:1996. */
-extern int getc_unlocked (FILE *__stream) __THROW;
-extern int getchar_unlocked (void) __THROW;
+/* These are defined in POSIX.1:1996.
+
+ These functions are possible cancellation points and therefore not
+ marked with __THROW. */
+extern int getc_unlocked (FILE *__stream);
+extern int getchar_unlocked (void);
#endif /* Use POSIX or MISC. */
#ifdef __USE_MISC
-/* Faster version when locking is not necessary. */
-extern int fgetc_unlocked (FILE *__stream) __THROW;
+/* Faster version when locking is not necessary.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern int fgetc_unlocked (FILE *__stream);
#endif /* Use MISC. */
__BEGIN_NAMESPACE_STD
-/* Write a character to STREAM. */
+/* Write a character to STREAM.
+
+ These functions are possible cancellation points and therefore not
+ marked with __THROW. */
extern int fputc (int __c, FILE *__stream) __THROW;
extern int putc (int __c, FILE *__stream) __THROW;
-/* Write a character to stdout. */
-extern int putchar (int __c) __THROW;
+/* Write a character to stdout.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int putchar (int __c);
__END_NAMESPACE_STD
/* The C standard explicitly says this can be a macro,
@@ -415,18 +486,27 @@ __END_NAMESPACE_STD
#define putc(_ch, _fp) _IO_putc (_ch, _fp)
#ifdef __USE_MISC
-/* Faster version when locking is not necessary. */
-extern int fputc_unlocked (int __c, FILE *__stream) __THROW;
+/* Faster version when locking is not necessary.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern int fputc_unlocked (int __c, FILE *__stream);
#endif /* Use MISC. */
#if defined __USE_POSIX || defined __USE_MISC
-/* These are defined in POSIX.1:1996. */
-extern int putc_unlocked (int __c, FILE *__stream) __THROW;
-extern int putchar_unlocked (int __c) __THROW;
+/* These are defined in POSIX.1:1996.
+
+ These functions are possible cancellation points and therefore not
+ marked with __THROW. */
+extern int putc_unlocked (int __c, FILE *__stream);
+extern int putchar_unlocked (int __c);
#endif /* Use POSIX or MISC. */
-#if defined __USE_SVID || defined __USE_MISC || defined __USE_XOPEN
+#if defined __USE_SVID || defined __USE_MISC \
+ || (defined __USE_XOPEN && !defined __USE_XOPEN2K)
/* Get a word (int) from STREAM. */
extern int getw (FILE *__stream) __THROW;
@@ -436,19 +516,29 @@ extern int putw (int __w, FILE *__stream) __THROW;
__BEGIN_NAMESPACE_STD
-/* Get a newline-terminated string of finite length from STREAM. */
-extern char *fgets (char *__restrict __s, int __n, FILE *__restrict __stream)
- __THROW;
+/* Get a newline-terminated string of finite length from STREAM.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern char *fgets (char *__restrict __s, int __n, FILE *__restrict __stream);
/* Get a newline-terminated string from stdin, removing the newline.
- DO NOT USE THIS FUNCTION!! There is no limit on how much it will read. */
-extern char *gets (char *__s) __THROW;
+ DO NOT USE THIS FUNCTION!! There is no limit on how much it will read.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern char *gets (char *__s);
__END_NAMESPACE_STD
#ifdef __USE_GNU
-/* This function does the same as `fgets' but does not lock the stream. */
+/* This function does the same as `fgets' but does not lock the stream.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
extern char *fgets_unlocked (char *__restrict __s, int __n,
- FILE *__restrict __stream) __THROW;
+ FILE *__restrict __stream);
#endif
@@ -457,50 +547,84 @@ extern char *fgets_unlocked (char *__restrict __s, int __n,
(and null-terminate it). *LINEPTR is a pointer returned from malloc (or
NULL), pointing to *N characters of space. It is realloc'd as
necessary. Returns the number of characters read (not including the
- null terminator), or -1 on error or EOF. */
+ null terminator), or -1 on error or EOF.
+
+ These functions are not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation they are cancellation points and
+ therefore not marked with __THROW. */
extern _IO_ssize_t __getdelim (char **__restrict __lineptr,
size_t *__restrict __n, int __delimiter,
- FILE *__restrict __stream) __THROW;
+ FILE *__restrict __stream);
extern _IO_ssize_t getdelim (char **__restrict __lineptr,
size_t *__restrict __n, int __delimiter,
- FILE *__restrict __stream) __THROW;
+ FILE *__restrict __stream);
+
+/* Like `getdelim', but reads up to a newline.
-/* Like `getdelim', but reads up to a newline. */
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
extern _IO_ssize_t getline (char **__restrict __lineptr,
size_t *__restrict __n,
- FILE *__restrict __stream) __THROW;
+ FILE *__restrict __stream);
#endif
__BEGIN_NAMESPACE_STD
-/* Write a string to STREAM. */
-extern int fputs (__const char *__restrict __s, FILE *__restrict __stream)
- __THROW;
+/* Write a string to STREAM.
+
+ This function is a possible cancellation points and therefore not
+ marked with __THROW. */
+extern int fputs (__const char *__restrict __s, FILE *__restrict __stream);
+
+/* Write a string, followed by a newline, to stdout.
-/* Write a string, followed by a newline, to stdout. */
-extern int puts (__const char *__s) __THROW;
+ This function is a possible cancellation points and therefore not
+ marked with __THROW. */
+extern int puts (__const char *__s);
-/* Push a character back onto the input buffer of STREAM. */
-extern int ungetc (int __c, FILE *__stream) __THROW;
+/* Push a character back onto the input buffer of STREAM.
+ This function is a possible cancellation points and therefore not
+ marked with __THROW. */
+extern int ungetc (int __c, FILE *__stream);
-/* Read chunks of generic data from STREAM. */
+
+/* Read chunks of generic data from STREAM.
+
+ This function is a possible cancellation points and therefore not
+ marked with __THROW. */
extern size_t fread (void *__restrict __ptr, size_t __size,
- size_t __n, FILE *__restrict __stream) __THROW;
-/* Write chunks of generic data to STREAM. */
+ size_t __n, FILE *__restrict __stream);
+/* Write chunks of generic data to STREAM.
+
+ This function is a possible cancellation points and therefore not
+ marked with __THROW. */
extern size_t fwrite (__const void *__restrict __ptr, size_t __size,
- size_t __n, FILE *__restrict __s) __THROW;
+ size_t __n, FILE *__restrict __s);
__END_NAMESPACE_STD
#ifdef __USE_GNU
-/* This function does the same as `fputs' but does not lock the stream. */
+/* This function does the same as `fputs' but does not lock the stream.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
extern int fputs_unlocked (__const char *__restrict __s,
- FILE *__restrict __stream) __THROW;
+ FILE *__restrict __stream);
#endif
#ifdef __USE_MISC
-/* Faster versions when locking is not necessary. */
+/* Faster versions when locking is not necessary.
+
+ These functions are not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation they are cancellation points and
+ therefore not marked with __THROW. */
extern size_t fread_unlocked (void *__restrict __ptr, size_t __size,
size_t __n, FILE *__restrict __stream) __THROW;
extern size_t fwrite_unlocked (__const void *__restrict __ptr, size_t __size,
@@ -509,12 +633,21 @@ extern size_t fwrite_unlocked (__const void *__restrict __ptr, size_t __size,
__BEGIN_NAMESPACE_STD
-/* Seek to a certain position on STREAM. */
-extern int fseek (FILE *__stream, long int __off, int __whence) __THROW;
-/* Return the current position of STREAM. */
-extern long int ftell (FILE *__stream) __THROW;
-/* Rewind to the beginning of STREAM. */
-extern void rewind (FILE *__stream) __THROW;
+/* Seek to a certain position on STREAM.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int fseek (FILE *__stream, long int __off, int __whence);
+/* Return the current position of STREAM.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern long int ftell (FILE *__stream);
+/* Rewind to the beginning of STREAM.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern void rewind (FILE *__stream);
__END_NAMESPACE_STD
/* The Single Unix Specification, Version 2, specifies an alternative,
@@ -524,16 +657,22 @@ __END_NAMESPACE_STD
#ifdef __USE_LARGEFILE
# ifndef __USE_FILE_OFFSET64
-/* Seek to a certain position on STREAM. */
-extern int fseeko (FILE *__stream, __off_t __off, int __whence) __THROW;
-/* Return the current position of STREAM. */
-extern __off_t ftello (FILE *__stream) __THROW;
+/* Seek to a certain position on STREAM.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int fseeko (FILE *__stream, __off_t __off, int __whence);
+/* Return the current position of STREAM.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern __off_t ftello (FILE *__stream);
# else
# ifdef __REDIRECT
extern int __REDIRECT (fseeko,
- (FILE *__stream, __off64_t __off, int __whence) __THROW,
+ (FILE *__stream, __off64_t __off, int __whence),
fseeko64);
-extern __off64_t __REDIRECT (ftello, (FILE *__stream) __THROW, ftello64);
+extern __off64_t __REDIRECT (ftello, (FILE *__stream), ftello64);
# else
# define fseeko fseeko64
# define ftello ftello64
@@ -543,18 +682,22 @@ extern __off64_t __REDIRECT (ftello, (FILE *__stream) __THROW, ftello64);
__BEGIN_NAMESPACE_STD
#ifndef __USE_FILE_OFFSET64
-/* Get STREAM's position. */
-extern int fgetpos (FILE *__restrict __stream, fpos_t *__restrict __pos)
- __THROW;
-/* Set STREAM's position. */
-extern int fsetpos (FILE *__stream, __const fpos_t *__pos) __THROW;
+/* Get STREAM's position.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int fgetpos (FILE *__restrict __stream, fpos_t *__restrict __pos);
+/* Set STREAM's position.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int fsetpos (FILE *__stream, __const fpos_t *__pos);
#else
# ifdef __REDIRECT
extern int __REDIRECT (fgetpos, (FILE *__restrict __stream,
- fpos_t *__restrict __pos) __THROW, fgetpos64);
+ fpos_t *__restrict __pos), fgetpos64);
extern int __REDIRECT (fsetpos,
- (FILE *__stream, __const fpos_t *__pos) __THROW,
- fsetpos64);
+ (FILE *__stream, __const fpos_t *__pos), fsetpos64);
# else
# define fgetpos fgetpos64
# define fsetpos fsetpos64
@@ -563,11 +706,10 @@ extern int __REDIRECT (fsetpos,
__END_NAMESPACE_STD
#ifdef __USE_LARGEFILE64
-extern int fseeko64 (FILE *__stream, __off64_t __off, int __whence) __THROW;
-extern __off64_t ftello64 (FILE *__stream) __THROW;
-extern int fgetpos64 (FILE *__restrict __stream, fpos64_t *__restrict __pos)
- __THROW;
-extern int fsetpos64 (FILE *__stream, __const fpos64_t *__pos) __THROW;
+extern int fseeko64 (FILE *__stream, __off64_t __off, int __whence);
+extern __off64_t ftello64 (FILE *__stream);
+extern int fgetpos64 (FILE *__restrict __stream, fpos64_t *__restrict __pos);
+extern int fsetpos64 (FILE *__stream, __const fpos64_t *__pos);
#endif
__BEGIN_NAMESPACE_STD
@@ -588,8 +730,11 @@ extern int ferror_unlocked (FILE *__stream) __THROW;
__BEGIN_NAMESPACE_STD
-/* Print a message describing the meaning of the value of errno. */
-extern void perror (__const char *__s) __THROW;
+/* Print a message describing the meaning of the value of errno.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern void perror (__const char *__s);
__END_NAMESPACE_STD
/* Provide the declarations for `sys_errlist' and `sys_nerr' if they
@@ -612,11 +757,17 @@ extern int fileno_unlocked (FILE *__stream) __THROW;
#if (defined __USE_POSIX2 || defined __USE_SVID || defined __USE_BSD || \
defined __USE_MISC)
-/* Create a new stream connected to a pipe running the given command. */
-extern FILE *popen (__const char *__command, __const char *__modes) __THROW;
+/* Create a new stream connected to a pipe running the given command.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern FILE *popen (__const char *__command, __const char *__modes);
+
+/* Close a stream opened by popen and return the status of its child.
-/* Close a stream opened by popen and return the status of its child. */
-extern int pclose (FILE *__stream) __THROW;
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int pclose (FILE *__stream);
#endif