cast.ToUint32("0134444") = 47396

[bb7788]

cast.ToUint32("0134444") = 47396

my go version go1.23.4 darwin/amd64, cast version 1.71

[yamadev11]

Most programming languages of the C-family including Go treat integer numbers as octal if starting with 0 and hex if starting with 0x. Here it is starting with 0 hence considered as octal but decimal and resulted into different number than your expectation.

[andreimerlescu]

The reason this is happening is due to the 0 as the 2nd argument being used in the following lines:

cast/caste.go

Lines 615 to 620 in 01004f2

	case string:
	v, err := strconv.ParseUint(trimZeroDecimal(s), 0, 0)
	if err == nil {
	return v, nil
	}
	return 0, fmt.Errorf("unable to cast %#v of type %T to uint64", i, i)

If used as:

v, err := strconv.ParseUint(trimZeroDecimal("0134444"), 10, 0) 
if v == nil {
   fmt.Println(v)
}

This returns Uint(134444).
https://goplay.tools/snippet/4iuNrPt2jDb

I've submitted a PR to address this so you can use this package and get unblocked.

[andig]

See https://pkg.go.dev/strconv#ParseInt