From 222e2a7620e6520ffaf4fc4e69d79c18da31542e Mon Sep 17 00:00:00 2001 From: "Zancanaro; Carlo" Date: Mon, 24 Sep 2012 09:58:17 +1000 Subject: Add the clang library to the repo (with some of my changes, too). --- clang/test/SemaCXX/bool.cpp | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 clang/test/SemaCXX/bool.cpp (limited to 'clang/test/SemaCXX/bool.cpp') diff --git a/clang/test/SemaCXX/bool.cpp b/clang/test/SemaCXX/bool.cpp new file mode 100644 index 0000000..2b3ab68 --- /dev/null +++ b/clang/test/SemaCXX/bool.cpp @@ -0,0 +1,33 @@ +// RUN: %clang_cc1 -fsyntax-only -verify %s + +// Bool literals can be enum values. +enum { + ReadWrite = false, + ReadOnly = true +}; + +// bool cannot be decremented, and gives a warning on increment +void test(bool b) +{ + ++b; // expected-warning {{incrementing expression of type bool is deprecated}} + b++; // expected-warning {{incrementing expression of type bool is deprecated}} + --b; // expected-error {{cannot decrement expression of type bool}} + b--; // expected-error {{cannot decrement expression of type bool}} + + bool *b1 = (int *)0; // expected-error{{cannot initialize}} +} + +// static_assert_arg_is_bool(x) compiles only if x is a bool. +template +void static_assert_arg_is_bool(T x) { + bool* p = &x; +} + +void test2() { + int n = 2; + static_assert_arg_is_bool(n && 4); // expected-warning {{use of logical '&&' with constant operand}} \ + // expected-note {{use '&' for a bitwise operation}} \ + // expected-note {{remove constant to silence this warning}} + static_assert_arg_is_bool(n || 5); // expected-warning {{use of logical '||' with constant operand}} \ + // expected-note {{use '|' for a bitwise operation}} +} -- cgit v1.2.3