3 /* fputc( int, FILE * )
5 This file is part of the Public Domain C Library (PDCLib).
6 Permission is granted to use, modify, and / or redistribute at will.
13 /* Write the value c (cast to unsigned char) to the given stream.
14 Returns c if successful, EOF otherwise.
15 If a write error occurs, sets the error indicator of the stream is set.
17 int fputc( int c, struct _PDCLIB_file_t * stream )
19 /* FIXME: This is devoid of any error checking (file writeable? r/w
20 constraints honored?) (Text format translations?)
22 stream->buffer[stream->bufidx++] = (char)c;
23 if ( ( stream->bufidx == stream->bufsize ) /* _IOFBF */
24 || ( ( stream->status & _IOLBF ) && ( (char)c == '\n' ) ) /* _IOLBF */
25 || ( stream->status & _IONBF ) /* _IONBF */
28 /* buffer filled, unbuffered stream, or end-of-line. */
33 stream->status |= _PDCLIB_WROTELAST;
41 #include <_PDCLIB_test.h>
47 TESTCASE( ( fh = fopen( "testfile", "w" ) ) != NULL );
48 TESTCASE( fputc( '!', fh ) == '!' );
49 TESTCASE( fclose( fh ) == 0 );
50 TESTCASE( ( fh = fopen( "testfile", "r" ) ) != NULL );
51 TESTCASE( fread( buffer, 1, 1, fh ) == 1 );
52 TESTCASE( buffer[0] == '!' );
53 TESTCASE( fclose( fh ) == 0 );