-/* $Id$ */
-
/* strtoul( const char *, char * *, int )
This file is part of the Public Domain C Library (PDCLib).
#endif
#ifdef TEST
-#include <_PDCLIB_test.h>
+
+#include "_PDCLIB_test.h"
+
#include <errno.h>
int main( void )
endptr = NULL;
TESTCASE( strtoul( overflow, &endptr, 0 ) == 0 );
TESTCASE( endptr == overflow );
+ /* TODO: These tests assume two-complement, but conversion should work */
+ /* for one-complement and signed magnitude just as well. Anyone having */
+ /* a platform to test this on? */
+ errno = 0;
+/* long -> 32 bit */
+#if ULONG_MAX >> 31 == 1
+ /* testing "even" overflow, i.e. base is power of two */
+ TESTCASE( strtoul( "4294967295", NULL, 0 ) == ULONG_MAX );
+ TESTCASE( errno == 0 );
+ errno = 0;
+ TESTCASE( strtoul( "4294967296", NULL, 0 ) == ULONG_MAX );
+ TESTCASE( errno == ERANGE );
+ /* TODO: test "odd" overflow, i.e. base is not power of two */
+/* long -> 64 bit */
+#elif ULONG_MAX >> 63 == 1
+ /* testing "even" overflow, i.e. base is power of two */
+ TESTCASE( strtoul( "18446744073709551615", NULL, 0 ) == ULONG_MAX );
+ TESTCASE( errno == 0 );
+ errno = 0;
+ TESTCASE( strtoul( "18446744073709551616", NULL, 0 ) == ULONG_MAX );
+ TESTCASE( errno == ERANGE );
+ /* TODO: test "odd" overflow, i.e. base is not power of two */
+#else
+#error Unsupported width of 'long' (neither 32 nor 64 bit).
+#endif
return TEST_RESULTS;
}