clang/test/SemaCXX/condition.cpp

54 строки
2.8 KiB
C++

// RUN: %clang_cc1 -fsyntax-only -verify %s
void test() {
int x;
if (x) ++x;
if (int x=0) ++x;
typedef int arr[10];
while (arr x=0) ; // expected-error {{an array type is not allowed here}} expected-error {{array initializer must be an initializer list}}
while (int f()=0) ; // expected-error {{a function type is not allowed here}}
struct S {} s;
if (s) ++x; // expected-error {{value of type 'struct S' is not contextually convertible to 'bool'}}
while (struct S x=s) ; // expected-error {{value of type 'struct S' is not contextually convertible to 'bool'}}
do ; while (s); // expected-error {{value of type 'struct S' is not contextually convertible to 'bool'}}
for (;s;) ; // expected-error {{value of type 'struct S' is not contextually convertible to 'bool'}}
switch (s) {} // expected-error {{statement requires expression of integer type ('struct S' invalid)}}
while (struct S {} x=0) ; // expected-error {{types may not be defined in conditions}} expected-error {{no viable conversion}} expected-error {{value of type 'struct S' is not contextually convertible to 'bool'}} expected-note{{candidate constructor (the implicit copy constructor)}}
while (struct {} x=0) ; // expected-error {{types may not be defined in conditions}} expected-error {{no viable conversion}} expected-error {{not contextually convertible to 'bool'}} expected-note{{candidate constructor (the implicit copy constructor)}}
switch (enum {E} x=0) ; // expected-error {{types may not be defined in conditions}} expected-error {{cannot initialize}} \
// expected-warning{{enumeration value 'E' not handled in switch}}
if (int x=0) { // expected-note 2 {{previous definition is here}}
int x; // expected-error {{redefinition of 'x'}}
}
else
int x; // expected-error {{redefinition of 'x'}}
while (int x=0) int x; // expected-error {{redefinition of 'x'}} expected-note {{previous definition is here}}
while (int x=0) { int x; } // expected-error {{redefinition of 'x'}} expected-note {{previous definition is here}}
for (int x; int x=0; ) ; // expected-error {{redefinition of 'x'}} expected-note {{previous definition is here}}
for (int x; ; ) int x; // expected-error {{redefinition of 'x'}} expected-note {{previous definition is here}}
for (; int x=0; ) int x; // expected-error {{redefinition of 'x'}} expected-note {{previous definition is here}}
for (; int x=0; ) { int x; } // expected-error {{redefinition of 'x'}} expected-note {{previous definition is here}}
switch (int x=0) { default: int x; } // expected-error {{redefinition of 'x'}} expected-note {{previous definition is here}}
}
int* get_int_ptr();
void test2() {
float *ip;
if (int *ip = ip) {
}
}
// Make sure we do function/array decay.
void test3() {
if ("help")
(void) 0;
if (test3)
(void) 0;
}