From: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Date: Thu, 17 Jan 2013 16:41:58 +0000 (+0100)
Subject: Added test cases for ZEND_SIGNED_MULTIPLY_LONG()
X-Git-Tag: php-5.6.0alpha1~582^2~27^2~1
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=abb12f5d7b82c40bc11eb374130e1607fad76d31;p=php

Added test cases for ZEND_SIGNED_MULTIPLY_LONG()

Before making changes to the implementation of
ZEND_SIGNED_MULTIPLY_LONG(), add some test cases
to make sure the various implementations remain
equivalent.
---

diff --git a/Zend/tests/zend_signed_multiply-32bit.phpt b/Zend/tests/zend_signed_multiply-32bit.phpt
new file mode 100644
index 0000000000..0a42bd42d8
--- /dev/null
+++ b/Zend/tests/zend_signed_multiply-32bit.phpt
@@ -0,0 +1,14 @@
+--TEST--
+Zend signed multiply 32-bit
+--SKIPIF--
+<? if ((1 << 31) > 0) print "skip Running on 64-bit target"; ?>
+--FILE--
+<?php
+var_dump(0x8000 * -0xffff);
+var_dump(0x8001 * 0xfffe);
+var_dump(0x8001 * -0xffff);
+?>
+--EXPECTF--
+int(-2147450880)
+int(2147483646)
+float(-2147516415)
diff --git a/Zend/tests/zend_signed_multiply-64bit.phpt b/Zend/tests/zend_signed_multiply-64bit.phpt
new file mode 100644
index 0000000000..86e5292ff6
--- /dev/null
+++ b/Zend/tests/zend_signed_multiply-64bit.phpt
@@ -0,0 +1,14 @@
+--TEST--
+Zend signed multiply 64-bit
+--SKIPIF--
+<? if ((1 << 31) < 0) print "skip Running on 32-bit target"; ?>
+--FILE--
+<?php
+var_dump(0x80000000 * -0xffffffff);
+var_dump(0x80000001 * 0xfffffffe);
+var_dump(0x80000001 * -0xffffffff);
+?>
+--EXPECTF--
+int(-9223372034707292160)
+int(9223372036854775806)
+float(-9.2233720390023E+18)