-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 */ };
+#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>
+
+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 ) == sizeof( int ) );
+ TESTCASE( sizeof( result.rem ) == sizeof( int ) );
+ return TEST_RESULTS;
+}
+
+#endif