Files
zig/test/cases/enum_with_members.zig
Andrew Kelley fc100d7b3b lots of miscellaneous things all in one big commit
* add `@compileLog(...)` builtin function
   - Helps debug code running at compile time
   - See #240
 * fix crash when there is an error on the start value of a slice
 * add implicit cast from int and float types to int and float
   literals if the value is known at compile time
 * make array concatenation work with slices in addition to
   arrays and c string literals
 * fix compile error message for something not having field access
 * fix crash when `@setDebugSafety()` was called from a
   function being evaluated at compile-time
 * fix compile-time evaluation of overflow math builtins.
 * avoid debug safety panic handler in builtin.o and compiler_rt.o
   since we use no debug safety in these modules anyway
 * add compiler_rt functions for division on ARM
   - Closes #254
 * move default panic handler to std.debug so users can
   call it manually
 * std.io.printf supports a width in the format specifier
2017-02-09 03:09:25 -05:00

30 lines
686 B
Zig

const assert = @import("std").debug.assert;
const mem = @import("std").mem;
const io = @import("std").io;
const ET = enum {
SINT: i32,
UINT: u32,
pub fn print(a: &const ET, buf: []u8) -> %usize {
return switch (*a) {
ET.SINT => |x| { io.bufPrintInt(buf, x, 10, false, 0) },
ET.UINT => |x| { io.bufPrintInt(buf, x, 10, false, 0) },
}
}
};
fn enumWithMembers() {
@setFnTest(this);
const a = ET.SINT { -42 };
const b = ET.UINT { 42 };
var buf: [20]u8 = undefined;
assert(%%a.print(buf) == 3);
assert(mem.eql(buf[0...3], "-42"));
assert(%%b.print(buf) == 2);
assert(mem.eql(buf[0...2], "42"));
}