zig/test/cases/safety/pointer casting to null function pointer.zig
Andrew Kelley 7f4c0e010d update safety test cases to new panic API
although they would also pass simply reverted to master branch because
I made the deprecated API still work for now (to be removed after 0.14.0
is tagged)
2024-09-26 17:14:17 -07:00

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Zig

const std = @import("std");
pub const Panic = struct {
pub const call = panic;
pub const unwrapError = std.debug.FormattedPanic.unwrapError;
pub const outOfBounds = std.debug.FormattedPanic.outOfBounds;
pub const startGreaterThanEnd = std.debug.FormattedPanic.startGreaterThanEnd;
pub const sentinelMismatch = std.debug.FormattedPanic.sentinelMismatch;
pub const inactiveUnionField = std.debug.FormattedPanic.inactiveUnionField;
pub const messages = std.debug.FormattedPanic.messages;
};
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