srctree

Marc Tiehuis parent e90583f5 091aa54a
fix comptime float formatting

Closes #19379Closes #18046

lib/std/fmt.zig added: 6, removed: 4, total 2

@@ -1839,6 +1839,8 @@ test comptimePrint {

try std.testing.expectEqualSlices(u8, "100", comptimePrint("{}", .{100}));

try std.testing.expectEqualStrings("30", comptimePrint("{d}", .{30.0}));

try std.testing.expectEqualStrings("30.0", comptimePrint("{d:3.1}", .{30.0}));

try std.testing.expectEqualStrings("0.05", comptimePrint("{d}", .{0.05}));

try std.testing.expectEqualStrings("5e-2", comptimePrint("{e}", .{0.05}));

}

test "parse u64 digit too big" {

lib/std/fmt/format_float.zig added: 6, removed: 4, total 2

@@ -270,9 +270,9 @@ pub fn formatDecimal(buf: []u8, f_: FloatDecimal128, precision: ?usize) FormatEr

// fixed bound: leading_digit(1) + point(1)

const req_bytes = if (f.exponent >= 0)

2 + @abs(f.exponent) + olength + (precision orelse 0)

@as(usize, 2) + @abs(f.exponent) + olength + (precision orelse 0)

else

2 + @max(@abs(f.exponent) + olength, precision orelse 0);

@as(usize, 2) + @max(@abs(f.exponent) + olength, precision orelse 0);

if (buf.len < req_bytes) {

return error.BufferTooSmall;

}