fix the comparison return value

diff --git a/ext/spl/spl_heap.c b/ext/spl/spl_heap.c
index b9f404ab113bc21a6429cabc9d619849a705fbad..b421c03757aef380eb3728e89b80bbd1ec5358e8 100644 (file)
--- a/ext/spl/spl_heap.c
+++ b/ext/spl/spl_heap.c
@@ -160,7 +160,7 @@ static int spl_ptr_heap_zval_max_cmp(zval *a, zval *b, zval *object TSRMLS_DC) {
                                /* exception or call failure */
                                return 0;
                        }
-                       return lval > 0 ? 1 : -1;
+                       return lval > 0 ? 1 : (lval < 0 ? -1 : 0);
                }
        }
 
@@ -184,7 +184,7 @@ static int spl_ptr_heap_zval_min_cmp(zval *a, zval *b, zval *object TSRMLS_DC) {
                                /* exception or call failure */
                                return 0;
                        }
-                       return lval > 0 ? 1 : -1;
+                       return lval > 0 ? 1 : (lval < 0 ? -1 : 0);
                }
        }
 
@@ -215,7 +215,7 @@ static int spl_ptr_pqueue_zval_cmp(zval *a, zval *b, zval *object TSRMLS_DC) { /
                                /* exception or call failure */
                                return 0;
                        }
-                       return lval > 0 ? 1 : -1;
+                       return lval > 0 ? 1 : (lval < 0 ? -1 : 0);
                }
        }