diff options
Diffstat (limited to 'src/pdclib/functions/stdio/fputc.c')
-rw-r--r-- | src/pdclib/functions/stdio/fputc.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/src/pdclib/functions/stdio/fputc.c b/src/pdclib/functions/stdio/fputc.c new file mode 100644 index 0000000..05ac792 --- /dev/null +++ b/src/pdclib/functions/stdio/fputc.c @@ -0,0 +1,47 @@ +/* fputc( int, FILE * ) + + This file is part of the Public Domain C Library (PDCLib). + Permission is granted to use, modify, and / or redistribute at will. +*/ + +#include <stdio.h> + +#ifndef REGTEST + +#include "pdclib/_PDCLIB_glue.h" + +/* Write the value c (cast to unsigned char) to the given stream. + Returns c if successful, EOF otherwise. + If a write error occurs, the error indicator of the stream is set. +*/ +int fputc( int c, struct _PDCLIB_file_t * stream ) +{ + if ( _PDCLIB_prepwrite( stream ) == EOF ) + { + return EOF; + } + stream->buffer[stream->bufidx++] = (char)c; + if ( ( stream->bufidx == stream->bufsize ) /* _IOFBF */ + || ( ( stream->status & _IOLBF ) && ( (char)c == '\n' ) ) /* _IOLBF */ + || ( stream->status & _IONBF ) /* _IONBF */ + ) + { + /* buffer filled, unbuffered stream, or end-of-line. */ + return ( _PDCLIB_flushbuffer( stream ) == 0 ) ? c : EOF; + } + return c; +} + +#endif + +#ifdef TEST + +#include "_PDCLIB_test.h" + +int main( void ) +{ + /* Testing covered by ftell.c */ + return TEST_RESULTS; +} + +#endif |