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Support comptime floats in std.fmt

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data-man 2020-05-25 11:05:08 +05:00 committed by Andrew Kelley
parent 0fd77c2de3
commit 0ecdbdb3cb
1 changed files with 14 additions and 2 deletions
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16
lib/std/fmt.zig
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@ -330,7 +330,7 @@ pub fn formatType(
}
switch (@typeInfo(T)) {
.ComptimeInt, .Int, .Float => {
.ComptimeInt, .Int, .ComptimeFloat, .Float => {
return formatValue(value, fmt, options, out_stream);
},
.Void => {
@ -493,7 +493,7 @@ fn formatValue(
const T = @TypeOf(value);
switch (@typeInfo(T)) {
.Float => return formatFloatValue(value, fmt, options, out_stream),
.Float, .ComptimeFloat => return formatFloatValue(value, fmt, options, out_stream),
.Int, .ComptimeInt => return formatIntValue(value, fmt, options, out_stream),
.Bool => return formatBuf(if (value) "true" else "false", options, out_stream),
else => comptime unreachable,
@ -1594,6 +1594,18 @@ test "formatIntValue with comptime_int" {
std.testing.expect(mem.eql(u8, fbs.getWritten(), "123456789123456789"));
}
test "formatFloatValue with comptime_float" {
const value: comptime_float = 1.0;
var buf: [20]u8 = undefined;
var fbs = std.io.fixedBufferStream(&buf);
try formatFloatValue(value, "", FormatOptions{}, fbs.outStream());
std.testing.expect(mem.eql(u8, fbs.getWritten(), "1.0e+00"));
try testFmt("1.0e+00", "{}", .{value});
try testFmt("1.0e+00", "{}", .{1.0});
}
test "formatType max_depth" {
const Vec2 = struct {
const SelfType = @This();