zig/doc/langref/test_inline_for.zig

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Zig

const expect = @import("std").testing.expect;
test "inline for loop" {
const nums = [_]i32{2, 4, 6};
var sum: usize = 0;
inline for (nums) |i| {
const T = switch (i) {
2 => f32,
4 => i8,
6 => bool,
else => unreachable,
};
sum += typeNameLength(T);
}
try expect(sum == 9);
}
fn typeNameLength(comptime T: type) usize {
return @typeName(T).len;
}
// test