diff --git a/lib/std/meta/trait.zig b/lib/std/meta/trait.zig index a288b2adfd..eb294a857c 100644 --- a/lib/std/meta/trait.zig +++ b/lib/std/meta/trait.zig @@ -312,6 +312,38 @@ test "std.meta.trait.isNumber" { testing.expect(!isNumber(NotANumber)); } +pub fn isIntegral(comptime T: type) bool { + return switch (@typeInfo(T)) { + .Int, .ComptimeInt => true, + else => false, + }; +} + +test "isIntegral" { + testing.expect(isIntegral(u32)); + testing.expect(!isIntegral(f32)); + testing.expect(isIntegral(@TypeOf(102))); + testing.expect(!isIntegral(@TypeOf(102.123))); + testing.expect(!isIntegral(*u8)); + testing.expect(!isIntegral([]u8)); +} + +pub fn isFloat(comptime T: type) bool { + return switch (@typeInfo(T)) { + .Float, .ComptimeFloat => true, + else => false, + }; +} + +test "isFloat" { + testing.expect(!isFloat(u32)); + testing.expect(isFloat(f32)); + testing.expect(!isFloat(@TypeOf(102))); + testing.expect(isFloat(@TypeOf(102.123))); + testing.expect(!isFloat(*f64)); + testing.expect(!isFloat([]f32)); +} + pub fn isConstPtr(comptime T: type) bool { if (!comptime is(.Pointer)(T)) return false; return @typeInfo(T).Pointer.is_const;