I've written a funtion to prouduce random bytes in a uint8_t
type array, unless I seed this with a random_device
object it works fine but when I seed there are some compiler errors.
code:
#include <algorithm>
#include <random>
#include <functional>
#include <stdint>
void generateInitVector(uint8_t IV_buff[16])
{
using bytes_randomizer = std::independent_bits_engine<std::default_random_engine, CHAR_BIT, uint8_t>;
std::random_device rd;
bytes_randomizer bytes(rd);
std::generate(std::begin(IV_buff), std::end(IV_buff), std::ref(bytes));
}
compiler errors:
-
error: no matching function for call to 'begin(uint8_t*&)'|
-
error: request for member 'begin' in '__cont', which is of non-class type 'unsigned char*'|
-
error: request for member 'begin' in '__cont', which is of non-class type 'unsigned char* const'|
-
error: no matching function for call to 'end(uint8_t*&)'|
-
error: request for member 'begin' in '__cont', which is of non-class type 'unsigned char*'|
-
error: request for member 'end' in '__cont', which is of non-class type 'unsigned char* const'|
-
error: 'class std::random_device' has no member named 'generate'|
There's catch that if I define a uint8_t
type array within th function
uint8_t data[16];
std::generate(std::begin(data), std::end(data), std::ref(bytes)); //and pass this array in `generate()`.
then only error 7 remains.
I'm using codeblocks 16.01
Any solutions to this.
Thanks.
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