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// RUN: %clang_cc1 %s -fsyntax-only -verify -fblocks
void take(void*);
void test(void) {
take(^(int x){});
take(^(int x, int y){});
take(^(int x, int y){});
take(^(int x, // expected-note {{previous declaration is here}}
int x){}); // expected-error {{redefinition of parameter 'x'}}
take(^(int x) { return x+1; });
int (^CP)(int) = ^(int x) { return x*x; };
take(CP);
int arg;
^{return 1;}();
^{return 2;}(arg); // expected-error {{too many arguments to block call}}
^(void){return 3;}(1); // expected-error {{too many arguments to block call}}
^(){return 4;}(arg); // expected-error {{too many arguments to block call}}
^(int x, ...){return 5;}(arg, arg); // Explicit varargs, ok.
}
int main(int argc, char** argv) {
^(int argCount) {
argCount = 3;
}(argc);
}
// radar 7528255
void f0(void) {
^(int, double d, char) {}(1, 1.34, 'a'); // expected-warning {{omitting the parameter name in a function definition is a C2x extension}} \
// expected-warning {{omitting the parameter name in a function definition is a C2x extension}}
}
// rdar://problem/8962770
void test4(void) {
int (^f)(void) = ^((x)) { }; // expected-warning {{type specifier missing}} expected-error {{type-id cannot have a name}}
}
// rdar://problem/9170609
void test5_helper(void (^)(int, int[*]));
void test5(void) {
test5_helper(^(int n, int array[n]) {});
}
// Reduced from a problem on platforms where va_list is an array.
struct tag {
int x;
};
typedef struct tag array_ty[1];
void test6(void) {
void (^block)(array_ty) = ^(array_ty arr) { };
array_ty arr;
block(arr);
}
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