// Header for PCH test blocks.c
int call_block(int (^bl)(int x, int y), int a, int b) {
return bl(a, b);
}
int add(int a, int b) {
return call_block(^(int x, int y) { return x + y; }, a, b);
}
int scaled_add(int a, int b, int s) {
__block int scale = s;
return call_block(^(int x, int y) { return x*scale + y; }, a, b);
}