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authorCarlo Zancanaro <carlo@pc-4w14-0.cs.usyd.edu.au>2012-10-15 17:10:06 +1100
committerCarlo Zancanaro <carlo@pc-4w14-0.cs.usyd.edu.au>2012-10-15 17:10:06 +1100
commitbe1de4be954c80875ad4108e0a33e8e131b2f2c0 (patch)
tree1fbbecf276bf7c7bdcbb4dd446099d6d90eaa516 /clang/test/Sema/floating-point-compare.c
parentc4626a62754862d20b41e8a46a3574264ea80e6d (diff)
parentf1bd2e48c5324d3f7cda4090c87f8a5b6f463ce2 (diff)
Merge branch 'master' of ssh://bitbucket.org/czan/honours
Diffstat (limited to 'clang/test/Sema/floating-point-compare.c')
-rw-r--r--clang/test/Sema/floating-point-compare.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/clang/test/Sema/floating-point-compare.c b/clang/test/Sema/floating-point-compare.c
new file mode 100644
index 0000000..60f971c
--- /dev/null
+++ b/clang/test/Sema/floating-point-compare.c
@@ -0,0 +1,25 @@
+// RUN: %clang_cc1 -fsyntax-only -Wfloat-equal -verify %s
+
+int f1(float x, float y) {
+ return x == y; // expected-warning {{comparing floating point with ==}}
+}
+
+int f2(float x, float y) {
+ return x != y; // expected-warning {{comparing floating point with ==}}
+}
+
+int f3(float x) {
+ return x == x; // no-warning
+}
+
+int f4(float x) {
+ return x == 0.0; // no-warning {{comparing}}
+}
+
+int f5(float x) {
+ return x == __builtin_inf(); // no-warning
+}
+
+int f7(float x) {
+ return x == 3.14159; // expected-warning {{comparing}}
+}