silence signed mistmatch in comparison warning in Murmurhash

as far as I can tell 'i' can only be positive here.

diff --git a/hv_func.h b/hv_func.h
index df39808..866c269 100644 (file)
--- a/hv_func.h
+++ b/hv_func.h
@@ -381,7 +381,7 @@ S_perl_hash_murmur3(const unsigned char * const seed, const unsigned char *ptr,
 
     /* Consume enough so that the next data byte is word aligned */
     int i = -(long)ptr & 3;
 
     /* Consume enough so that the next data byte is word aligned */
     int i = -(long)ptr & 3;

-    if(i && i <= len) {
+    if(i && (STRLEN)i <= len) {

       MURMUR_DOBYTES(i, h1, carry, bytes_in_carry, ptr, len);
     }
 
       MURMUR_DOBYTES(i, h1, carry, bytes_in_carry, ptr, len);
     }