Question

How to use built in function to convert binary to decimal in C++

Answer 1

#include <iostream>
#include <bitset>
 
int main(void) {
    std::string binary = "11110101";
    unsigned long decimal = std::bitset<8>(binary).to_ulong();
     
    std::cout << decimal;
}
 
 
 
   
/*
run:
    
245
    
*/

 

70+ SQL courses for beginners and professionals

Answer 2

#include <iostream>
#include <bitset>
 
int main(void) {
    std::bitset<8> bits("11110101");
    
    unsigned long decimal= bits.to_ulong();
     
    std::cout << decimal;
}
 
 
 
   
/*
run:
    
245
    
*/

 

70+ SQL courses for beginners and professionals