ref: 92a6483fc287984ca6b5c40c480f7d7d0c7b5fc7
parent: 9537bdd2580a9bb6f44b0a6ae6f0b1a71cbd4734
author: Ori Bernstein <ori@eigenstate.org>
date: Sat Jul 25 01:52:21 EDT 2020
cc: add tests for integer constant types.
--- /dev/null
+++ b/cmd/cc/cc.rc
@@ -1,0 +1,5 @@
+#!/bin/rc
+
+if($O^c -w intlit.test.c | grep warning)
+ exit 'fail'
+exit ''
--- /dev/null
+++ b/cmd/cc/intlit.test.c
@@ -1,0 +1,45 @@
+/* integer constant type test
+ * reference: C standard 6.4.4.1
+ * not really compliant lol
+ * ori & Amavect
+ */
+#include <u.h>
+#include <libc.h>
+
+void
+main(void)
+{+ print("%ullX ", 0xFF66554433221100); /* uvlong */+ print("%llX ", 0x0000000180000000); /* vlong */+ print("\n");+ print("%X ", 0x7FFFFFFF); /* int */+ print("%uX ", 0x80000000); /* uint */+ print("%uX ", 0xFFFFFFFF); /* uint */+ print("%llX ", 0x100000000); /* vlong */+ print("\n");+
+ /* vlong (C standard)
+ * if it parses as uint, it's technically wrong to the standard
+ * even though it works just fine
+ * ideally, - is part of an integer constant,
+ * but that's just not in the standard.
+ */
+ print("%lld ", -2147483648);+ print("%d", -0x80000000); /* uint, no warning for int format */+
+ print("\n");+ print("%llX ", 0x7FFFFFFFFFFFFFFF); /* vlong */+ print("%ullX ", 0x8000000000000000); /* uvlong */+ print("%ullX ", 0xFFFFFFFFFFFFFFFF); /* uvlong */+ print("%ullX", ~1ULL); /* uvlong */+ print("\n");+
+ /* uvlong (C standard)
+ * C standard specifies an extended integer type
+ * uvlong is our extended vlong :)
+ */
+ print("%lld ", -9223372036854775808); /* no warning for vlong format */+ print("%lld", -0x8000000000000000); /* uvlong, no warning for vlong format */+ print("\n");+
+}
--- /dev/null
+++ b/cmd/cc/mkfile
@@ -1,0 +1,5 @@
+</$objtype/mkfile
+
+TEST=cc
+
+<../../regress