You are seeing the ffffff because char is signed on your system. In C, vararg functions such as printf will promote all integers smaller than int to int. Since char is an integer (8-bit signed integer in your case), your chars are being promoted to int via sign-extension. Since c0 and 80 have a leading … Read more
Tried printf(1)? printf “%x\n” 34 22 There are probably ways of doing that with builtin functions in all shells but it would be less portable. I’ve not checked the POSIX sh specs to see whether it has such capabilities.
It’s simply too big for an int (which is 4 bytes and signed). Use Long.parseLong(“AA0F245C”, 16);
For solving the left-side trailing zero problem: my_hexdata = “1a” scale = 16 ## equals to hexadecimal num_of_bits = 8 bin(int(my_hexdata, scale))[2:].zfill(num_of_bits) It will give 00011010 instead of the trimmed version.
Check out Hex.encodeHexString from Apache Commons Codec. import org.apache.commons.codec.binary.Hex; String hex = Hex.encodeHexString(bytes);
Use the format operator %: >>> ‘#%02x%02x%02x’ % (0, 128, 64) ‘#008040′ Note that it won’t check bounds… >>> ‘#%02x%02x%02x’ % (0, -1, 9999) ‘#00-1270f’
use std::stringstream unsigned int x; std::stringstream ss; ss << std::hex << “fffefffe”; ss >> x; the following example produces -65538 as its result: #include <sstream> #include <iostream> int main() { unsigned int x; std::stringstream ss; ss << std::hex << “fffefffe”; ss >> x; // output it as a signed type std::cout << static_cast<int>(x) << std::endl; … Read more
Literals that start with 0x are hexadecimal integers. (base 16) The number 0x6400 is 25600. 6 * 16^3 + 4 * 16^2 = 25600 For an example including letters (also used in hexadecimal notation where A = 10, B = 11 … F = 15) The number 0x6BF0 is 27632. 6 * 16^3 + 11 … Read more
To convert from hex to decimal, there are many ways to do it in the shell or with an external program: With bash: $ echo $((16#FF)) 255 with bc: $ echo “ibase=16; FF” | bc 255 with perl: $ perl -le ‘print hex(“FF”);’ 255 with printf : $ printf “%d\n” 0xFF 255 with python: $ … Read more
Right-click your Watch Window or Immediate Window and uncheck Hexadecimal Display option.