How to get stringstream to treat uint8_t as a number not a character?

Question

I have this code and wondering if it's possible to have stringstream to treat uint8_t as a number not a character?

uint8_t s;
std::stringstream sstream( "255" );
sstream >> s;
std::cout << s << " equals 50/'2' not 255 " << std::endl;

s should be 255 not 50/'2'

So the only solution is to use uint16_t? – Luke Mar 10 '13 at 21:04 — Luke, Mar 10 '13 at 21:04

score 4 · Answer 1 · edited Jun 19 '14 at 23:40

4

If you are using std::stringstream in order to convert uint8_t to string, then you can use std::to_string instead. Allowed in c++11 only.

C++11 Feature

#include <stdint.h>
#include <iostream>
uint8_t value = 7;
std::cout << std::to_string(value) << std::endl;
// Output is "7"

edited Jun 19 '14 at 23:40

Will Bickford

answered Mar 31 '14 at 14:05

aleksandrm8

Please provide some examples or more explanation so that the asker can understand you better. – sshashank124 Mar 31 '14 at 14:25
1

I think the OP is asking for the reverse conversion: string to uint8_t. – Jesse Beder Jan 24 '15 at 21:16
2

I think it's implementation dependent I have one host that std::to_string(uint8_t) returns char not value – Maciej S Jun 01 '16 at 15:50

score 0 · Answer 2 · answered Feb 23 '13 at 23:43

0

Cast it to an int:

std::cout << (int)s << " equals 2 not 255 " << std::endl;

answered Feb 23 '13 at 23:43

nneonneo