X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Fstdlib%2Fdiv.c;h=3e32638e11ee09608a56b5ce7f7619992f57d52e;hb=12e17136786afb1775c9dc946cbe41f5e230c24a;hp=4994d3db3513d0c518942af9deea78d57f4174b3;hpb=dcc8a8e99f69e090a03b7b868443addbc0817820;p=pdclib.old diff --git a/functions/stdlib/div.c b/functions/stdlib/div.c index 4994d3d..3e32638 100644 --- a/functions/stdlib/div.c +++ b/functions/stdlib/div.c @@ -1,19 +1,47 @@ -// ---------------------------------------------------------------------------- -// $Id$ -// ---------------------------------------------------------------------------- -// Public Domain C Library - http://pdclib.sourceforge.net -// This code is Public Domain. Use, modify, and redistribute at will. -// ---------------------------------------------------------------------------- +/* $Id$ */ -// ---------------------------------------------------------------------------- -// C++ +/* Release $Name$ */ -ldiv_t div( long numer, long denom ) { /* TODO */ }; -lldiv_t div( long long numer, long long denom ) { /* TODO */ }; +/* div( int, int ) -// ---------------------------------------------------------------------------- -// Standard C + This file is part of the Public Domain C Library (PDCLib). + Permission is granted to use, modify, and / or redistribute at will. +*/ -div_t div( int numer, int denom ) { /* TODO */ }; -lldiv_t lldiv( long long numer, long long denom ) { /* TODO */ }; -ldiv_t ldiv( long numer, long denom ) { /* TODO */ }; +#include + +#ifndef REGTEST + +div_t div( int numer, int denom ) +{ + div_t rc; + rc.quot = numer / denom; + rc.rem = numer % denom; + /* TODO: pre-C99 compilers might require modulus corrections */ + return rc; +} + +#endif + +#ifdef TEST +#include <_PDCLIB_test.h> + +#ifndef _PDCLIB_CONFIG_H +#include <_PDCLIB_config.h> +#endif + +int main( void ) +{ + div_t result; + result = div( 5, 2 ); + TESTCASE( result.quot == 2 && result.rem == 1 ); + result = div( -5, 2 ); + TESTCASE( result.quot == -2 && result.rem == -1 ); + result = div( 5, -2 ); + TESTCASE( result.quot == -2 && result.rem == 1 ); + TESTCASE( sizeof( result.quot ) == _PDCLIB_INT_BYTES ); + TESTCASE( sizeof( result.rem ) == _PDCLIB_INT_BYTES ); + return TEST_RESULTS; +} + +#endif