add specialized stroull() because msvc6 doesn't have one

diff --git a/src/metaflac/main.c b/src/metaflac/main.c
index c1c3d05..eab6107 100644 (file)
--- a/src/metaflac/main.c
+++ b/src/metaflac/main.c
@@ -1095,12 +1095,28 @@ FLAC__bool parse_uint32(const char *src, FLAC__uint32 *dest)
        return true;
 }
 
+/* There's no stroull() in MSVC6 so we just write a specialized one */
+static FLAC__uint64 local__strtoull(const char *src)
+{
+       FLAC__uint64 ret = 0;
+       int c;
+       FLAC__ASSERT(0 != src);
+       while(0 != (c = *src++)) {
+               c -= '0';
+               if(c >= 0 && c <= 9)
+                       ret = (ret * 10) + c;
+               else
+                       break;
+       }
+       return ret;
+}
+
 FLAC__bool parse_uint64(const char *src, FLAC__uint64 *dest)
 {
        FLAC__ASSERT(0 != src);
        if(strlen(src) == 0 || strspn(src, "0123456789") != strlen(src))
                return false;
-       *dest = strtoull(src, 0, 10);
+       *dest = local__strtoull(src);
        return true;
 }