X-Git-Url: https://pd.if.org/git/?p=pdclib;a=blobdiff_plain;f=functions%2Fstdio%2Ffgetc.c;h=0b042c7d5be8506396f43f61a19b144570caa024;hp=1ca2367b4e6b6ffac7b79c99c6b7e05fd8b402d3;hb=da0f3f353d417fed71f358a48d5d5394145e460d;hpb=34893ecc2200dc7017c36a54cb6c5f4c2378b5ec diff --git a/functions/stdio/fgetc.c b/functions/stdio/fgetc.c index 1ca2367..0b042c7 100644 --- a/functions/stdio/fgetc.c +++ b/functions/stdio/fgetc.c @@ -1,8 +1,45 @@ -// ---------------------------------------------------------------------------- -// $Id$ -// ---------------------------------------------------------------------------- -// Public Domain C Library - http://pdclib.sourceforge.net -// This code is Public Domain. Use, modify, and redistribute at will. -// ---------------------------------------------------------------------------- - -int fgetc( FILE * stream ) { /* TODO */ }; +/* fgetc( FILE * ) + + This file is part of the Public Domain C Library (PDCLib). + Permission is granted to use, modify, and / or redistribute at will. +*/ + +#include + +#ifndef REGTEST +#include "_PDCLIB_io.h" + +int _PDCLIB_fgetc_unlocked( FILE * stream ) +{ + if ( _PDCLIB_prepread( stream ) == EOF ) + { + return EOF; + } + + char c; + + size_t n = _PDCLIB_getchars( &c, 1, EOF, stream ); + + return n == 0 ? EOF : (unsigned char) c; +} + +int fgetc( FILE * stream ) +{ + _PDCLIB_flockfile( stream ); + int c = _PDCLIB_fgetc_unlocked( stream ); + _PDCLIB_funlockfile( stream ); + return c; +} + +#endif + +#ifdef TEST +#include "_PDCLIB_test.h" + +int main( void ) +{ + /* Testing covered by ftell.c */ + return TEST_RESULTS; +} + +#endif