diff options
Diffstat (limited to 'newlib/libc/stdio/fgetwc.c')
| -rw-r--r-- | newlib/libc/stdio/fgetwc.c | 79 |
1 files changed, 9 insertions, 70 deletions
diff --git a/newlib/libc/stdio/fgetwc.c b/newlib/libc/stdio/fgetwc.c index e89404be8..14c554786 100644 --- a/newlib/libc/stdio/fgetwc.c +++ b/newlib/libc/stdio/fgetwc.c @@ -26,72 +26,40 @@ /* FUNCTION -<<fgetwc>>, <<getwc>>, <<fgetwc_unlocked>>, <<getwc_unlocked>>---get a wide character from a file or stream +<<fgetwc>>, <<getwc>>---get a wide character from a file or stream INDEX fgetwc INDEX - fgetwc_unlocked -INDEX _fgetwc_r INDEX - _fgetwc_unlocked_r -INDEX getwc INDEX - getwc_unlocked -INDEX _getwc_r -INDEX - _getwc_unlocked_r ANSI_SYNOPSIS #include <stdio.h> #include <wchar.h> wint_t fgetwc(FILE *<[fp]>); - #define _GNU_SOURCE - #include <stdio.h> - #include <wchar.h> - wint_t fgetwc_unlocked(FILE *<[fp]>); - #include <stdio.h> #include <wchar.h> wint_t _fgetwc_r(struct _reent *<[ptr]>, FILE *<[fp]>); #include <stdio.h> #include <wchar.h> - wint_t _fgetwc_unlocked_r(struct _reent *<[ptr]>, FILE *<[fp]>); - - #include <stdio.h> - #include <wchar.h> wint_t getwc(FILE *<[fp]>); - #define _GNU_SOURCE - #include <stdio.h> - #include <wchar.h> - wint_t getwc_unlocked(FILE *<[fp]>); - #include <stdio.h> #include <wchar.h> wint_t _getwc_r(struct _reent *<[ptr]>, FILE *<[fp]>); - #include <stdio.h> - #include <wchar.h> - wint_t _getwc_unlocked_r(struct _reent *<[ptr]>, FILE *<[fp]>); - TRAD_SYNOPSIS #include <stdio.h> #include <wchar.h> wint_t fgetwc(<[fp]>) FILE *<[fp]>; - #define _GNU_SOURCE - #include <stdio.h> - #include <wchar.h> - wint_t fgetwc_unlocked(<[fp]>) - FILE *<[fp]>; - #include <stdio.h> #include <wchar.h> wint_t _fgetwc_r(<[ptr]>, <[fp]>) @@ -100,54 +68,27 @@ TRAD_SYNOPSIS #include <stdio.h> #include <wchar.h> - wint_t _fgetwc_unlocked_r(<[ptr]>, <[fp]>) - struct _reent *<[ptr]>; - FILE *<[fp]>; - - #include <stdio.h> - #include <wchar.h> wint_t getwc(<[fp]>) FILE *<[fp]>; - #define _GNU_SOURCE - #include <stdio.h> - #include <wchar.h> - wint_t getwc_unlocked(<[fp]>) - FILE *<[fp]>; - #include <stdio.h> #include <wchar.h> wint_t _getwc_r(<[ptr]>, <[fp]>) struct _reent *<[ptr]>; FILE *<[fp]>; - #include <stdio.h> - #include <wchar.h> - wint_t _getwc_unlocked_r(<[ptr]>, <[fp]>) - struct _reent *<[ptr]>; - FILE *<[fp]>; - DESCRIPTION Use <<fgetwc>> to get the next wide character from the file or stream identified by <[fp]>. As a side effect, <<fgetwc>> advances the file's current position indicator. -<<fgetwc_unlocked>> is a non-thread-safe version of <<fgetwc>>. -<<fgetwc_unlocked>> may only safely be used within a scope -protected by flockfile() (or ftrylockfile()) and funlockfile(). This -function may safely be used in a multi-threaded program if and only -if they are called while the invoking thread owns the (FILE *) -object, as is the case after a successful call to the flockfile() or -ftrylockfile() functions. If threads are disabled, then -<<fgetwc_unlocked>> is equivalent to <<fgetwc>>. - -The <<getwc>> and <<getwc_unlocked>> functions or macros functions identically -to <<fgetwc>> and <<fgetwc_unlocked>>. It may be implemented as a macro, and -may evaluate its argument more than once. There is no reason ever to use it. +The <<getwc>> function or macro functions identically to <<fgetwc>>. It +may be implemented as a macro, and may evaluate its argument more than +once. There is no reason ever to use it. -<<_fgetwc_r>>, <<_getwc_r>>, <<_fgetwc_unlocked_r>>, and <<_getwc_unlocked_r>> -are simply reentrant versions of the above functions that are passed the -additional reentrant structure pointer argument: <[ptr]>. +<<_fgetwc_r>> and <<_getwc_r>> are simply reentrant versions of +<<fgetwc>> and <<getwc>> that are passed the additional reentrant +structure pointer argument: <[ptr]>. RETURNS The next wide character cast to <<wint_t>>), unless there is no more data, @@ -158,9 +99,7 @@ You can distinguish the two situations that cause an <<EOF>> result by using the <<ferror>> and <<feof>> functions. PORTABILITY -<<fgetwc>> and <<getwc>> are required by C99 and POSIX.1-2001. - -<<fgetwc_unlocked>> and <<getwc_unlocked>> are GNU extensions. +C99, POSIX.1-2001 */ #include <_ansi.h> @@ -171,7 +110,7 @@ PORTABILITY #include <wchar.h> #include "local.h" -wint_t +static wint_t _DEFUN(__fgetwc, (ptr, fp), struct _reent *ptr _AND register FILE *fp) |