Number of days between two dates C++

Question

I saw examples for C#, Java, but for C++ i cant find solution to calculate how many days between two dates.

For example between 2012-01-24 and 2013-01-08

Thanks!

Answer 1

This is one way.

#include <iostream> #include <ctime>  int main() {     struct std::tm a = {0,0,0,24,5,104}; /* June 24, 2004 */     struct std::tm b = {0,0,0,5,6,104}; /* July 5, 2004 */     std::time_t x = std::mktime(&a);     std::time_t y = std::mktime(&b);     if ( x != (std::time_t)(-1) && y != (std::time_t)(-1) )     {         double difference = std::difftime(y, x) / (60 * 60 * 24);         std::cout << std::ctime(&x);         std::cout << std::ctime(&y);         std::cout << "difference = " << difference << " days" << std::endl;     }     return 0; } 

my output

Thu Jun 24 01:00:00 2004 Mon Jul 05 01:00:00 2004 difference = 11 days 

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