177 lines
3.6 KiB
C
177 lines
3.6 KiB
C
// RUN: %clang_cc1 -fsyntax-only -triple x86_64-unknown-unknown %s -verify
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typedef struct { unsigned long bits[(((1) + (64) - 1) / (64))]; } cpumask_t;
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cpumask_t x;
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void foo() {
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(void)x;
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}
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void bar() {
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char* a;
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double b;
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b = (double)a; // expected-error {{pointer cannot be cast to type}}
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a = (char*)b; // expected-error {{cannot be cast to a pointer type}}
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}
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long bar1(long *next) {
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return (long)(*next)++;
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}
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typedef _Bool Bool;
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typedef int Int;
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typedef long Long;
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typedef float Float;
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typedef double Double;
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typedef _Complex int CInt;
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typedef _Complex long CLong;
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typedef _Complex float CFloat;
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typedef _Complex double CDouble;
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typedef void *VoidPtr;
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typedef char *CharPtr;
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void testBool(Bool v) {
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(void) (Bool) v;
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(void) (Int) v;
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(void) (Long) v;
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(void) (Float) v;
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(void) (Double) v;
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(void) (CInt) v;
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(void) (CLong) v;
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(void) (CFloat) v;
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(void) (CDouble) v;
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(void) (VoidPtr) v;
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(void) (CharPtr) v;
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}
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void testInt(Int v) {
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(void) (Bool) v;
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(void) (Int) v;
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(void) (Long) v;
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(void) (Float) v;
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(void) (Double) v;
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(void) (CInt) v;
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(void) (CLong) v;
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(void) (CFloat) v;
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(void) (CDouble) v;
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(void) (VoidPtr) v; // expected-warning{{cast to 'VoidPtr' (aka 'void *') from smaller integer type 'Int' (aka 'int')}}
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(void) (CharPtr) v; // expected-warning{{cast to 'CharPtr' (aka 'char *') from smaller integer type 'Int' (aka 'int')}}
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// Test that casts to void* can be controlled separately
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// from other -Wint-to-pointer-cast warnings.
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wint-to-void-pointer-cast"
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(void) (VoidPtr) v; // no-warning
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(void) (CharPtr) v; // expected-warning{{cast to 'CharPtr' (aka 'char *') from smaller integer type 'Int' (aka 'int')}}
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#pragma clang diagnostic pop
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}
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void testLong(Long v) {
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(void) (Bool) v;
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(void) (Int) v;
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(void) (Long) v;
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(void) (Float) v;
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(void) (Double) v;
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(void) (CInt) v;
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(void) (CLong) v;
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(void) (CFloat) v;
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(void) (CDouble) v;
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(void) (VoidPtr) v;
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(void) (CharPtr) v;
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}
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void testFloat(Float v) {
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(void) (Bool) v;
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(void) (Int) v;
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(void) (Long) v;
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(void) (Float) v;
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(void) (Double) v;
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(void) (CInt) v;
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(void) (CLong) v;
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(void) (CFloat) v;
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(void) (CDouble) v;
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}
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void testDouble(Double v) {
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(void) (Bool) v;
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(void) (Int) v;
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(void) (Long) v;
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(void) (Float) v;
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(void) (Double) v;
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(void) (CInt) v;
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(void) (CLong) v;
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(void) (CFloat) v;
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(void) (CDouble) v;
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}
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void testCI(CInt v) {
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(void) (Bool) v;
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(void) (Int) v;
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(void) (Long) v;
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(void) (Float) v;
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(void) (Double) v;
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(void) (CInt) v;
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(void) (CLong) v;
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(void) (CFloat) v;
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(void) (CDouble) v;
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}
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void testCLong(CLong v) {
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(void) (Bool) v;
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(void) (Int) v;
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(void) (Long) v;
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(void) (Float) v;
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(void) (Double) v;
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(void) (CInt) v;
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(void) (CLong) v;
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(void) (CFloat) v;
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(void) (CDouble) v;
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}
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void testCFloat(CFloat v) {
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(void) (Bool) v;
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(void) (Int) v;
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(void) (Long) v;
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(void) (Float) v;
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(void) (Double) v;
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(void) (CInt) v;
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(void) (CLong) v;
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(void) (CFloat) v;
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(void) (CDouble) v;
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}
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void testCDouble(CDouble v) {
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(void) (Bool) v;
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(void) (Int) v;
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(void) (Long) v;
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(void) (Float) v;
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(void) (Double) v;
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(void) (CInt) v;
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(void) (CLong) v;
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(void) (CFloat) v;
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(void) (CDouble) v;
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}
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void testVoidPtr(VoidPtr v) {
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(void) (Bool) v;
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(void) (Int) v;
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(void) (Long) v;
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(void) (VoidPtr) v;
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(void) (CharPtr) v;
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}
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void testCharPtr(CharPtr v) {
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(void) (Bool) v;
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(void) (Int) v;
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(void) (Long) v;
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(void) (VoidPtr) v;
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(void) (CharPtr) v;
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}
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typedef enum { x_a, x_b } X;
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void *intToPointerCast2(X x) {
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return (void*)x;
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}
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void *intToPointerCast3() {
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return (void*)(1 + 3);
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}
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