block-args.c revision d7d5f0223bd30dfd618762349c6209dd1d5ea3e6 
1// RUN: clang-cc %s -fsyntax-only -verify -fblocks
2
3void take(void*);
4
5void test() {
6  take(^(int x){});
7  take(^(int x, int y){});
8  take(^(int x, int y){});
9  take(^(int x, int x){});  // expected-error {{redefinition of parameter 'x'}}
10
11
12  take(^(int x) { return x+1; });
13
14  int (^CP)(int) = ^(int x) { return x*x; };
15  take(CP);
16
17  int arg;
18  ^{return 1;}();
19  ^{return 2;}(arg); // expected-error {{too many arguments to block call}}
20  ^(void){return 3;}(1); // expected-error {{too many arguments to block call}}
21  ^(){return 4;}(arg);   // C style (...), ok.
22  ^(int x, ...){return 5;}(arg, arg);   // Explicit varargs, ok.
23}
24
25int main(int argc) {
26  ^(int argCount) {
27    argCount = 3;
28  }(argc);
29}
30