X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Fstdlib%2Fstrtol.c;h=dce035ea1f9bd8a254b36ce9cde74f4e18bbcb63;hb=164e8c095e19af2595865d2713dd4d3d893b71e0;hp=8fc95b0fce7c66d842bcb8d325e371f211f2cac9;hpb=393020b6e48719d27699dea6b29e53025bbd5123;p=pdclib diff --git a/functions/stdlib/strtol.c b/functions/stdlib/strtol.c index 8fc95b0..dce035e 100644 --- a/functions/stdlib/strtol.c +++ b/functions/stdlib/strtol.c @@ -37,11 +37,6 @@ long int strtol( const char * s, char ** endptr, int base ) #ifdef TEST #include <_PDCLIB_test.h> -#ifndef _PDCLIB_INT_H -#define _PDCLIB_INT_H -#include <_PDCLIB_int.h> -#endif - #include int main( void ) @@ -49,19 +44,27 @@ int main( void ) char * endptr; /* this, to base 36, overflows even a 256 bit integer */ char overflow[] = "-ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ_"; + /* tricky border case */ + char tricky[] = "+0xz"; errno = 0; /* basic functionality */ TESTCASE( strtol( "123", NULL, 10 ) == 123 ); /* proper detecting of default base 10 */ - TESTCASE( strtol( "123", NULL, 0 ) == 123 ); + TESTCASE( strtol( "456", NULL, 0 ) == 456 ); /* proper functioning to smaller base */ TESTCASE( strtol( "14", NULL, 8 ) == 12 ); /* proper autodetecting of octal */ - TESTCASE( strtol( "014", NULL, 0 ) == 12 ); + TESTCASE( strtol( "016", NULL, 0 ) == 14 ); /* proper autodetecting of hexadecimal, lowercase 'x' */ TESTCASE( strtol( "0xFF", NULL, 0 ) == 255 ); /* proper autodetecting of hexadecimal, uppercase 'X' */ - TESTCASE( strtol( "0XFF", NULL, 0 ) == 255 ); + TESTCASE( strtol( "0Xa1", NULL, 0 ) == 161 ); + /* proper handling of border case: 0x followed by non-hexdigit */ + TESTCASE( strtol( tricky, &endptr, 0 ) == 0 ); + TESTCASE( endptr == tricky + 2 ); + /* proper handling of border case: 0 followed by non-octdigit */ + TESTCASE( strtol( tricky, &endptr, 8 ) == 0 ); + TESTCASE( endptr == tricky + 2 ); /* errno should still be 0 */ TESTCASE( errno == 0 ); /* overflowing subject sequence must still return proper endptr */ @@ -74,43 +77,49 @@ int main( void ) TESTCASE( errno == ERANGE ); TESTCASE( ( endptr - overflow ) == 53 ); /* testing skipping of leading whitespace */ - TESTCASE( strtol( " \n\v\t\f123", NULL, 0 ) == 123 ); + TESTCASE( strtol( " \n\v\t\f789", NULL, 0 ) == 789 ); /* testing conversion failure */ TESTCASE( strtol( overflow, &endptr, 10 ) == 0 ); TESTCASE( endptr == overflow ); endptr = NULL; TESTCASE( strtol( overflow, &endptr, 0 ) == 0 ); TESTCASE( endptr == overflow ); - /* 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? */ + /* 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; -#if _PDCLIB_LONG_BYTES == 4 +#if LONG_MAX >> 30 == 1 /* testing "even" overflow, i.e. base is power of two */ - TESTCASE( strtol( "0x7FFFFFFF", NULL, 0 ) == 0x7fffffff ); + TESTCASE( strtol( "2147483647", NULL, 0 ) == 0x7fffffff ); TESTCASE( errno == 0 ); - TESTCASE( strtol( "0x80000000", NULL, 0 ) == LONG_MAX ); + errno = 0; + TESTCASE( strtol( "2147483648", NULL, 0 ) == LONG_MAX ); TESTCASE( errno == ERANGE ); errno = 0; - TESTCASE( strtol( "-0x7FFFFFFF", NULL, 0 ) == (long)0x80000001 ); + TESTCASE( strtol( "-2147483647", NULL, 0 ) == (long)0x80000001 ); TESTCASE( errno == 0 ); - TESTCASE( strtol( "-0x80000000", NULL, 0 ) == LONG_MIN ); + errno = 0; + TESTCASE( strtol( "-2147483648", NULL, 0 ) == LONG_MIN ); TESTCASE( errno == 0 ); - TESTCASE( strtol( "-0x80000001", NULL, 0 ) == LONG_MIN ); + errno = 0; + TESTCASE( strtol( "-2147483649", NULL, 0 ) == LONG_MIN ); TESTCASE( errno == ERANGE ); /* TODO: test "odd" overflow, i.e. base is not power of two */ -#elif _PDCLIB_LONG_BYTES == 8 +#elif LONG_MAX >> 62 == 1 /* testing "even" overflow, i.e. base is power of two */ - TESTCASE( strtol( "0x7FFFFFFFFFFFFFFF", NULL, 0 ) == 0x7fffffffffffffff ); + TESTCASE( strtol( "9223372036854775807", NULL, 0 ) == 0x7fffffffffffffff ); TESTCASE( errno == 0 ); - TESTCASE( strtol( "0x8000000000000000", NULL, 0 ) == LONG_MAX ); + errno = 0; + TESTCASE( strtol( "9223372036854775808", NULL, 0 ) == LONG_MAX ); TESTCASE( errno == ERANGE ); errno = 0; - TESTCASE( strtol( "-0x7FFFFFFFFFFFFFFF", NULL, 0 ) == (long)0x8000000000000001 ); + TESTCASE( strtol( "-9223372036854775807", NULL, 0 ) == (long)0x8000000000000001 ); TESTCASE( errno == 0 ); - TESTCASE( strtol( "-0x8000000000000000", NULL, 0 ) == LONG_MIN ); + errno = 0; + TESTCASE( strtol( "-9223372036854775808", NULL, 0 ) == LONG_MIN ); TESTCASE( errno == 0 ); - TESTCASE( strtol( "-0x8000000000000001", NULL, 0 ) == LONG_MIN ); + errno = 0; + TESTCASE( strtol( "-9223372036854775809", NULL, 0 ) == LONG_MIN ); TESTCASE( errno == ERANGE ); /* TODO: test "odd" overflow, i.e. base is not power of two */ #else