Битовые операции - C++ - Ответ 3755370

#include <iostream>
#include <string>
#include <iomanip>
 
void setbit (std::string &s, unsigned int len)
{
#define SIZE_MASK_ARRAY (5)
    std::string mask =
    {
        (char)0x08,
        (char)0x42,
        (char)0x10,
        (char)0x84,
        (char)0x21
    };
    unsigned int i = 0;
 
    while(i < len)
    {
        s[ i ] |= mask[i % SIZE_MASK_ARRAY];
        i++;
    }
#undef SIZE_MASK_ARRAY
}
 
int main()
{
    std::string str ("this is a good string for example");
    unsigned int i = 0, len = str.size();
 
    std::cout << "this is a source bytes of string\n" << '\n';
    while( i < len )
        std::cout << std::hex << (unsigned int)str[ i++ ];
    std::cout << '\n';
 
    std::cout << "this is a modified bytes of string\n" << '\n';
    i = 0;
    setbit(str, len);
 
    while( i < len )
        std::cout << std::hex << (unsigned int)str[ i++ ];
    std::cout << '\n';
 
    return 0;
}