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From: Student Project <student@invalid.invalid>
Newsgroups: comp.lang.c++
Subject: Re: g++ v14.1.0
Date: Tue, 17 Dec 2024 15:49:49 +0000
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On 17/12/2024 06:52, Bonita Montero wrote:
> Am 17.12.2024 um 05:39 schrieb Student Project:
> 
>> Do you guys see any problems in this simple code:
>> struct Timer
>> {
>>     std::chrono::time_point<std::chrono::steady_clock> start, end;
>>     std::chrono::duration<float> duration;
>>
>>     Timer()
>>     {
>>         start = std::chrono::high_resolution_clock::now();
>      std::chrono::time_point<std::chrono::high_resolution_clock> start, 
> end;
> 
> 
>>     }
>>
>>     ~Timer()
>>     {
>>         end = std::chrono::high_resolution_clock::now();
>>         duration = end - start;
>>
>>         float ms = duration.count() * 1000.0f;
>>         std::cout << "Timer took: " << ms << "ms\n";
>>     }
>> };
>>
> 
> That's while steady_clock and system_clock are the same with MSVC
> (both rely on GetSystemTimeAsFileTime()).

Vielen Dank, Bonita. Es lässt sich jetzt in allen drei Compilern 
kompilieren, auf die ich Zugriff habe. Das vollständige, einfache 
Programm zum Ausprobieren finden Sie hier:

#include <iostream>
#include <chrono>
#include <thread>

/*
* Compile directives:
For g++:
g++ -std=c++20 -Wall -o obj/main.o -c src/main.cpp
g++ -std=c++20 -Wall -o Program obj/main.o

For clang++:
clang++ -o Program01.exe -Wall main.cpp

For Visual Studio:
cl /EHsc main.cpp

*/

struct Timer
{

	std::chrono::time_point<std::chrono::high_resolution_clock> start, end;
	std::chrono::duration<float> duration;
	
	Timer()
	{
		start = std::chrono::high_resolution_clock::now();
	}
	
	~Timer()
	{
		end = std::chrono::high_resolution_clock::now();
		duration = end - start;

		float ms = duration.count() * 1000.0f;
		std::cout << "Timer took: " << ms << "ms\n";
	}
};

void Function()
{
	
	Timer timer;
	for (int i = 0; i < 1000; i++)
	{
		std::cout << "Hello World!\n";
	}
}

int main()
{
	Function();
}


Frohe Weihnachten.