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cc65/libsrc/common/fputc.c
uz 130e8fd090 Changed the code so that it better suits the code generation of the compiler
(which means, the resulting code is shorter).


git-svn-id: svn://svn.cc65.org/cc65/trunk@5702 b7a2c559-68d2-44c3-8de9-860c34a00d81
2012-06-10 18:32:38 +00:00

42 lines
749 B
C

/*
* fputc.c
*
* Ullrich von Bassewitz, 02.06.1998
*/
#include <stdio.h>
#include <unistd.h>
#include "_file.h"
/*****************************************************************************/
/* Code */
/*****************************************************************************/
int __fastcall__ fputc (int c, register FILE* f)
{
/* Check if the file is open or if there is an error condition */
if ((f->f_flags & _FOPEN) == 0 || (f->f_flags & (_FERROR | _FEOF)) != 0) {
goto ReturnEOF;
}
/* Write the byte */
if (write (f->f_fd, &c, 1) != 1) {
/* Error */
f->f_flags |= _FERROR;
ReturnEOF:
return EOF;
}
/* Return the byte written */
return c & 0xFF;
}