zig/test/cases/new_stack_call.zig
2018-05-13 13:38:03 -04:00

27 lines
605 B
Zig

const std = @import("std");
const assert = std.debug.assert;
var new_stack_bytes: [1024]u8 = undefined;
test "calling a function with a new stack" {
const arg = 1234;
const a = @newStackCall(new_stack_bytes[0..512], targetFunction, arg);
const b = @newStackCall(new_stack_bytes[512..], targetFunction, arg);
_ = targetFunction(arg);
assert(arg == 1234);
assert(a < b);
}
fn targetFunction(x: i32) usize {
assert(x == 1234);
var local_variable: i32 = 42;
const ptr = &local_variable;
ptr.* += 1;
assert(local_variable == 43);
return @ptrToInt(ptr);
}