zig/test/cases/safety/pointer casting to null function pointer.zig
mlugg f26dda2117 all: migrate code to new cast builtin syntax
Most of this migration was performed automatically with `zig fmt`. There
were a few exceptions which I had to manually fix:

* `@alignCast` and `@addrSpaceCast` cannot be automatically rewritten
* `@truncate`'s fixup is incorrect for vectors
* Test cases are not formatted, and their error locations change
2023-06-24 16:56:39 -07:00

24 lines
576 B
Zig

const std = @import("std");
pub fn panic(message: []const u8, stack_trace: ?*std.builtin.StackTrace, _: ?usize) noreturn {
_ = stack_trace;
if (std.mem.eql(u8, message, "cast causes pointer to be null")) {
std.process.exit(0);
}
std.process.exit(1);
}
fn getNullPtr() ?*const anyopaque {
return null;
}
pub fn main() !void {
const null_ptr: ?*const anyopaque = getNullPtr();
const required_ptr: *align(1) const fn () void = @ptrCast(null_ptr);
_ = required_ptr;
return error.TestFailed;
}
// run
// backend=llvm
// target=native