X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Fstdlib%2Fstrtoull.c;h=fa866fc78a73c54cff232a528e29ad6b8e80e8ca;hb=e1c526e9bad3f6e69391e94059096145390508d3;hp=ca9dd1936ee2fb46c11dddfaf5f424aa5147e3bb;hpb=45f394553721285e7bc6187419613c33915cce21;p=pdclib

diff --git a/functions/stdlib/strtoull.c b/functions/stdlib/strtoull.c
index ca9dd19..fa866fc 100644
--- a/functions/stdlib/strtoull.c
+++ b/functions/stdlib/strtoull.c
@@ -1,5 +1,3 @@
-/* $Id$ */
-
 /* strtoull( const char *, char * *, int )
 
    This file is part of the Public Domain C Library (PDCLib).
@@ -76,14 +74,16 @@ int main( void )
     TESTCASE( strtoull( overflow, &endptr, 0 ) == 0 );
     TESTCASE( endptr == overflow );
     errno = 0;
-#if ULLONG_MAX == 0xffffffffffffffffLL
+/* long long -> 64 bit */
+#if ULLONG_MAX >> 63 == 1
     /* testing "even" overflow, i.e. base is power of two */
     TESTCASE( strtoull( "18446744073709551615", NULL, 0 ) == ULLONG_MAX );
     TESTCASE( errno == 0 );
     TESTCASE( strtoull( "18446744073709551616", NULL, 0 ) == ULLONG_MAX );
     TESTCASE( errno == ERANGE );
     /* TODO: test "odd" overflow, i.e. base is not power of two */
-#elif ULLONG_MAX == 0xffffffffffffffffffffffffffffffffLL
+/* long long -> 128 bit */
+#elif ULLONG_MAX >> 127 == 1
     /* testing "even" overflow, i.e. base is power of two */
     TESTCASE( strtoull( "340282366920938463463374607431768211455", NULL, 0 ) == ULLONG_MAX );
     TESTCASE( errno == 0 );