X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Finttypes%2Fstrtoumax.c;h=9c9833eda92bd367d462f734e1fde975abf0c9b8;hb=f91c757a54bdfb3d0ee43e5352973b9f940f0a71;hp=0da7ec2889f31fffb2f510287e61a5d8dd5ad30c;hpb=45f394553721285e7bc6187419613c33915cce21;p=pdclib

diff --git a/functions/inttypes/strtoumax.c b/functions/inttypes/strtoumax.c
index 0da7ec2..9c9833e 100755
--- a/functions/inttypes/strtoumax.c
+++ b/functions/inttypes/strtoumax.c
@@ -76,14 +76,16 @@ int main( void )
     TESTCASE( strtoumax( overflow, &endptr, 0 ) == 0 );
     TESTCASE( endptr == overflow );
     errno = 0;
-#if UINTMAX_MAX == 0xffffffffffffffffLL
+/* uintmax_t -> long long -> 64 bit */
+#if UINTMAX_MAX >> 63 == 1
     /* testing "even" overflow, i.e. base is power of two */
     TESTCASE( strtoumax( "18446744073709551615", NULL, 0 ) == UINTMAX_MAX );
     TESTCASE( errno == 0 );
     TESTCASE( strtoumax( "18446744073709551616", NULL, 0 ) == UINTMAX_MAX );
     TESTCASE( errno == ERANGE );
     /* TODO: test "odd" overflow, i.e. base is not power of two */
-#elif UINTMAX_MAX == 0xffffffffffffffffffffffffffffffffLL
+/* uintmax_t -> long long -> 128 bit */
+#elif UINTMAX_MAX >> 127 == 1
     /* testing "even" overflow, i.e. base is power of two */
     TESTCASE( strtoumax( "340282366920938463463374607431768211455", NULL, 0 ) == UINTMAX_MAX );
     TESTCASE( errno == 0 );