Perl: Decimal to 32bits hex convert

Question

I want to convert decimal number 64 into hex representation: 0x00000040 . I am using

printf("0x%X", 64);

but it gives output: 0x40 . Can anyone please help me how to represent the decimal number in 0x00000000 format?

Answer 1

You can specify the length of the field between the % and the X (eg %8X ). By default, the number will be padded with spaces, but using a leading zero for the length (eg %08X ) will cause printf to pad with zeroes instead. Therefore, the following can be used:

printf("0x%08X", 64);