// Compilable with:

// clang -std=c++11 -fblocks -c blocks.cpp

void (*functionPtrReturningVoidWithVoidArgument)(void);

int (*functionPtrReturningIntWithIntAndCharArguments)(int, char);

void (*arrayOfTenFunctionPtrsReturningVoidWithIntArgument[10])(int);

void (^blockReturningVoidWithVoidArgument)(void);

int (^blockReturningIntWithIntAndCharArguments)(int, char);

void (^arrayOfTenBlocksReturningVoidWithIntArgument[10])(int);

int x;

void f(void) {

blockReturningVoidWithVoidArgument

= ^ void (void) { x = 1; };

blockReturningVoidWithVoidArgument

= ^ (void) { x = 1; };

blockReturningVoidWithVoidArgument

= ^ { x = 1; };

// Has an implicit "return;" so result type is void

auto b1

= ^ (int y, char z) { x = 1; };

// Has no implicit "return;" but result type still void

auto b2

= ^ (int y, char z) { x = 1; while (1) { } };

// Explicit return so result type char

auto b3

= ^ (int y, char z) { x = 1; return 'c'; };

// Explicit return so result type char

auto b4

= ^ (int y, char z) { x = 1; if (1) { return 'c'; }; while (1) { } };

// Also has an explicit return type

auto b5

= ^ char (int y, char z) { x = 1; return 'c'; };

char c;

b1(5, 'a');

b2(5, 'a');

c = b3(5, 'a');

c = b4(5, 'a');

c = b5(5, 'a');

}

struct Example {

int four;

int getFour() {

return (^{ return four; })();

}

};