X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Fstdlib%2Fstrtoul.c;h=c134aa2288e4a0036930d5a67cd37a8f98d9f237;hb=b1fc26afebd4d557ff89a44bc21767a8704c3809;hp=568029756b69af9267be04b790ad5a086f0ba4bc;hpb=45f394553721285e7bc6187419613c33915cce21;p=pdclib

diff --git a/functions/stdlib/strtoul.c b/functions/stdlib/strtoul.c
index 5680297..c134aa2 100644
--- a/functions/stdlib/strtoul.c
+++ b/functions/stdlib/strtoul.c
@@ -1,5 +1,3 @@
-/* $Id$ */
-
 /* strtoul( const char *, char * *, int )
 
    This file is part of the Public Domain C Library (PDCLib).
@@ -79,7 +77,8 @@ int main( void )
     /* for one-complement and signed magnitude just as well. Anyone having */
     /* a platform to test this on?                                         */
     errno = 0;
-#if ULONG_MAX == 0xffffffffL
+/* 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 );
@@ -87,7 +86,8 @@ int main( void )
     TESTCASE( strtoul( "4294967296", NULL, 0 ) == ULONG_MAX );
     TESTCASE( errno == ERANGE );
     /* TODO: test "odd" overflow, i.e. base is not power of two */
-#elif ULONG_MAX == 0xffffffffffffffffL
+/* 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 );