forked from OSchip/llvm-project
64 lines
1.6 KiB
C++
64 lines
1.6 KiB
C++
// RUN: %clang_cc1 -triple x86_64-apple-darwin -fsyntax-only -Wconversion -verify %s
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#include <stddef.h>
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typedef signed char int8_t;
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typedef signed short int16_t;
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typedef signed int int32_t;
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typedef signed long int64_t;
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typedef unsigned char uint8_t;
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typedef unsigned short uint16_t;
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typedef unsigned int uint32_t;
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typedef unsigned long uint64_t;
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// <rdar://problem/7909130>
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namespace test0 {
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int32_t test1_positive(char *I, char *E) {
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return (E - I); // expected-warning {{implicit conversion loses integer precision}}
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}
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int32_t test1_negative(char *I, char *E) {
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return static_cast<int32_t>(E - I);
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}
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uint32_t test2_positive(uint64_t x) {
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return x; // expected-warning {{implicit conversion loses integer precision}}
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}
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uint32_t test2_negative(uint64_t x) {
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return (uint32_t) x;
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}
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}
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namespace test1 {
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uint64_t test1(int x, unsigned y) {
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return sizeof(x == y);
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}
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uint64_t test2(int x, unsigned y) {
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return __alignof(x == y);
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}
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void * const foo();
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bool test2(void *p) {
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return p == foo();
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}
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}
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namespace test2 {
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struct A {
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unsigned int x : 2;
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A() : x(10) {} // expected-warning {{implicit truncation from 'int' to bitfield changes value from 10 to 2}}
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};
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}
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void test3() {
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int a = NULL; // expected-warning {{implicit conversion of NULL constant to integer}}
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int b;
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b = NULL; // expected-warning {{implicit conversion of NULL constant to integer}}
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int c = ((((NULL)))); // expected-warning {{implicit conversion of NULL constant to integer}}
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int d;
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d = ((((NULL)))); // expected-warning {{implicit conversion of NULL constant to integer}}
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}
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