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- // Consultalocaltime.cpp : This file contains the 'main' function. Program execution begins and ends there.
- //
- #include <iostream>
- #include <string>
- #include <stdio.h>
- #include <time.h>
- std::string myasctime(const struct tm *timeptr);
- int main()
- {
- std::cout << "Consulta sobre localtime y asctime" << std::endl;
- time_t rawtime;
- time(&rawtime);
- struct tm timeinfo;
- // from https://en.cppreference.com/w/c/chrono/localtime
- // from https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/localtime-s-localtime32-s-localtime64-s?view=vs-2019
- localtime_s(&timeinfo, &rawtime);
- // from https://en.cppreference.com/w/c/chrono/asctime
- // from https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/asctime-s-wasctime-s?view=vs-2019
- char str[26];
- asctime_s(str, sizeof str, &timeinfo);
- printf ( "The current date/time is: %s", str);
- // using special function
- std::cout << "The current date/time is: " << myasctime(&timeinfo) << std::endl;
- return 0;
- }
- std::string myasctime(const struct tm *timeptr)
- {
- static const std::string wday_name[] = {
- "Dom", "Lun", "Mar", "Mie", "Jue", "Vie", "Sab"
- };
- static const std::string mon_name[] = {
- "Ene", "Feb", "Mar", "Abr", "May", "Jun",
- "Jul", "Ago", "Sep", "Oct", "Nov", "Dic"
- };
- std::string out;
- out = wday_name[timeptr->tm_wday] + " " \
- + mon_name[timeptr->tm_mon] + " " \
- + std::to_string(timeptr->tm_mday) + " " \
- + std::to_string(timeptr->tm_hour) + ":" \
- + std::to_string(timeptr->tm_min) + ":" \
- + std::to_string(timeptr->tm_sec) + ":" \
- + std::to_string(1900 + timeptr->tm_year);
- return out;
- }
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