diff options
Diffstat (limited to 'newlib/libc/stdio/fgetc.c')
| -rw-r--r-- | newlib/libc/stdio/fgetc.c | 42 |
1 files changed, 4 insertions, 38 deletions
diff --git a/newlib/libc/stdio/fgetc.c b/newlib/libc/stdio/fgetc.c index 34447a2c8..20492d24b 100644 --- a/newlib/libc/stdio/fgetc.c +++ b/newlib/libc/stdio/fgetc.c @@ -17,53 +17,30 @@ /* FUNCTION -<<fgetc>>, <<fgetc_unlocked>>---get a character from a file or stream +<<fgetc>>---get a character from a file or stream INDEX fgetc INDEX - fgetc_unlocked -INDEX _fgetc_r -INDEX - _fgetc_unlocked_r ANSI_SYNOPSIS #include <stdio.h> int fgetc(FILE *<[fp]>); - #define _BSD_SOURCE - #include <stdio.h> - int fgetc_unlocked(FILE *<[fp]>); - #include <stdio.h> int _fgetc_r(struct _reent *<[ptr]>, FILE *<[fp]>); - #define _BSD_SOURCE - #include <stdio.h> - int _fgetc_unlocked_r(struct _reent *<[ptr]>, FILE *<[fp]>); - TRAD_SYNOPSIS #include <stdio.h> int fgetc(<[fp]>) FILE *<[fp]>; - #define _BSD_SOURCE - #include <stdio.h> - int fgetc_unlocked(<[fp]>) - FILE *<[fp]>; - #include <stdio.h> int _fgetc_r(<[ptr]>, <[fp]>) struct _reent *<[ptr]>; FILE *<[fp]>; - #define _BSD_SOURCE - #include <stdio.h> - int _fgetc_unlocked_r(<[ptr]>, <[fp]>) - struct _reent *<[ptr]>; - FILE *<[fp]>; - DESCRIPTION Use <<fgetc>> to get the next single character from the file or stream identified by <[fp]>. As a side effect, <<fgetc>> advances the file's @@ -71,18 +48,9 @@ current position indicator. For a macro version of this function, see <<getc>>. -<<fgetc_unlocked>> is a non-thread-safe version of <<fgetc>>. -<<fgetc_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 -<<fgetc_unlocked>> is equivalent to <<fgetc>>. - -The functions <<_fgetc_r>> and <<_fgetc_unlocked_r>> are simply reentrant -versions that are passed the additional reentrant structure pointer -argument: <[ptr]>. +The function <<_fgetc_r>> is simply a reentrant version of +<<fgetc>> that is passed the additional reentrant structure +pointer argument: <[ptr]>. RETURNS The next character (read as an <<unsigned char>>, and cast to @@ -95,8 +63,6 @@ using the <<ferror>> and <<feof>> functions. PORTABILITY ANSI C requires <<fgetc>>. -<<fgetc_unlocked>> is a BSD extension also provided by GNU libc. - Supporting OS subroutines required: <<close>>, <<fstat>>, <<isatty>>, <<lseek>>, <<read>>, <<sbrk>>, <<write>>. */ |