学ぶ Working with <ctime> | Working with C-style Time

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Definition

The <ctime> header provides C-style functions for retrieving, converting, and manipulating time values, enabling basic operations like getting the current time or working with calendar dates.

C++ inherits time-handling functionality from the C standard library through <ctime>. This header gives access to:

Functions that retrieve the current system time.
Tools that convert between different time representations.
Data types that store time values efficiently.

It acts as a foundation for any program that needs to measure durations, log events, or schedule operations.

main.cpp


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#include <iostream>
#include <ctime>

int main()
{
    std::cout << "The <ctime> header is ready to use!" << std::endl;
    return 0;
}

Note

The <ctime> header itself does not display time or handle formatting. It provides the types and functions that other parts of your program will use to do so.

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