fix signed/unsigned mismatch warnings

diff --git a/ext/iconv/iconv.c b/ext/iconv/iconv.c
index 19270a55b946e29d0db4a375469eaaf8bbdb9666..ac2374c6a3a48effda56894ca6ac9838379fa310 100644 (file)
--- a/ext/iconv/iconv.c
+++ b/ext/iconv/iconv.c
@@ -824,16 +824,16 @@ static php_iconv_err_t _php_iconv_substr(smart_str *pretval,
                }
        }
 
-       if(len > total_len) {
+       if(len > (zend_long)total_len) {
                len = total_len;
        }
 
 
-       if (offset >= total_len) {
+       if (offset >= (zend_long)total_len) {
                return PHP_ICONV_ERR_SUCCESS;
        }
 
-       if ((offset + len) > total_len ) {
+       if ((offset + len) > (zend_long)total_len ) {
                /* trying to compute the length */
                len = total_len - offset;
        }