From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001
From: upstream source tree <ports@midipix.org>
Date: Sun, 15 Mar 2015 20:14:05 -0400
Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified
 gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream
 tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.
---
 gcc/testsuite/g++.dg/warn/Wtype-limits-Wextra.C | 84 +++++++++++++++++++++++++
 1 file changed, 84 insertions(+)
 create mode 100644 gcc/testsuite/g++.dg/warn/Wtype-limits-Wextra.C

(limited to 'gcc/testsuite/g++.dg/warn/Wtype-limits-Wextra.C')

diff --git a/gcc/testsuite/g++.dg/warn/Wtype-limits-Wextra.C b/gcc/testsuite/g++.dg/warn/Wtype-limits-Wextra.C
new file mode 100644
index 000000000..9cbdbe547
--- /dev/null
+++ b/gcc/testsuite/g++.dg/warn/Wtype-limits-Wextra.C
@@ -0,0 +1,84 @@
+/* Test that -Wtype-limits is enabled by -Wextra.  */
+/* { dg-do compile } */
+/* { dg-options "-Wextra" } */
+extern void assert (int);
+
+void a (unsigned char x)
+{
+  if (x < 0)  return;/* { dg-warning "comparison is always false due to limited range of data type" } */
+  if (x >= 0) return;/* { dg-warning "comparison is always true due to limited range of data type" } */
+  if (0 > x)  return;/* { dg-warning "comparison is always false due to limited range of data type" } */
+  if (0 <= x) return;/* { dg-warning "comparison is always true due to limited range of data type" } */
+  if (x <= 255) /* { dg-warning "comparison is always true due to limited range of data type" } */
+    return;
+  if (255 >= x) /* { dg-warning "comparison is always true due to limited range of data type" } */
+    return;
+  if ((int)x <= 255) /* { dg-bogus "comparison is always true due to limited range of data type" "" { xfail *-*-* } 16 } */
+    return;
+  if (255 >= (unsigned char) 1)
+    return;
+
+}
+
+void b (unsigned short x)
+{
+  if (x < 0)  return;/* { dg-warning "comparison is always false due to limited range of data type" } */
+  if (x >= 0) return;/* { dg-warning "comparison is always true due to limited range of data type" } */
+  if (0 > x)  return;/* { dg-warning "comparison is always false due to limited range of data type" } */
+  if (0 <= x) return;/* { dg-warning "comparison is always true due to limited range of data type" } */
+}
+
+void c (unsigned int x)
+{
+  if (x < 0)  return;/* { dg-warning "comparison of unsigned expression < 0 is always false" } */
+  if (x >= 0) return;/* { dg-warning "comparison of unsigned expression >= 0 is always true" } */
+  if (0 > x)  return;/* { dg-warning "comparison of unsigned expression < 0 is always false" } */
+  if (0 <= x) return;/* { dg-warning "comparison of unsigned expression >= 0 is always true" } */
+  if (1U >= 0) return;
+  if (1U < 0) return;
+  if (0 <= 1U) return;
+  if (0 > 1U) return;
+}
+
+void d (unsigned long x)
+{
+  if (x < 0)  return;/* { dg-warning "comparison of unsigned expression < 0 is always false" } */
+  if (x >= 0) return;/* { dg-warning "comparison of unsigned expression >= 0 is always true" } */
+  if (0 > x)  return;/* { dg-warning "comparison of unsigned expression < 0 is always false" } */
+  if (0 <= x) return;/* { dg-warning "comparison of unsigned expression >= 0 is always true" } */
+}
+
+void e (unsigned long long x)
+{
+  if (x < 0)  return;/* { dg-warning "comparison of unsigned expression < 0 is always false" } */
+  if (x >= 0) return;/* { dg-warning "comparison of unsigned expression >= 0 is always true" } */
+  if (0 > x)  return;/* { dg-warning "comparison of unsigned expression < 0 is always false" } */
+  if (0 <= x) return;/* { dg-warning "comparison of unsigned expression >= 0 is always true" } */
+}
+
+int test (int x) 
+{
+  if ((long long)x <= 0x123456789ABCLL) /* { dg-bogus "comparison is always true due to limited range of data type" "" { xfail *-*-* } 61 } */
+    return 1;
+  else 
+    return 0;
+}
+
+template <typename Int, Int D>
+void f(Int x) {
+  assert(0 <= x and x <= D); // { dg-warning "comparison is always true due to limited range of data type" }
+}
+
+int ff(void) {
+  f<unsigned char, 2>(5);
+  f<signed char, 2>(5);
+}
+
+template <typename Int, Int D>
+void g(void) {
+  assert(0 <= D);
+}
+int gg(void) {
+  g<unsigned char, 2>();
+}
+
-- 
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