zig/test/cases/bitcast.zig
Andrew Kelley 3671582c15 syntax: functions require return type. remove ->
The purpose of this is:

 * Only one way to do things
 * Changing a function with void return type to return a possible
   error becomes a 1 character change, subtly encouraging
   people to use errors.

See #632

Here are some imperfect sed commands for performing this update:

remove arrow:

```
sed -i 's/\(\bfn\b.*\)-> /\1/g' $(find . -name "*.zig")
```

add void:

```
sed -i 's/\(\bfn\b.*\))\s*{/\1) void {/g' $(find ../ -name "*.zig")
```

Some cleanup may be necessary, but this should do the bulk of the work.
2018-01-25 04:10:11 -05:00

15 lines
355 B
Zig

const assert = @import("std").debug.assert;
test "@bitCast i32 -> u32" {
testBitCast_i32_u32();
comptime testBitCast_i32_u32();
}
fn testBitCast_i32_u32() void {
assert(conv(-1) == @maxValue(u32));
assert(conv2(@maxValue(u32)) == -1);
}
fn conv(x: i32) u32 { return @bitCast(u32, x); }
fn conv2(x: u32) i32 { return @bitCast(i32, x); }