If I have a date, how do I calculate the week number for that date within that year? For example, in 2008, January 1st to January 6th are in week 1 and January 7th to the 13th are in week 2, so if my date was January 10th 2008, my week number would be 2....

If I have a date, how do I calculate the week number for that date within that year? For example, in 2008, January 1st to January 6th are in week 1 and January 7th to the 13th are in week 2, so if my date was January 10th 2008, my week number would be 2....

I am trying to add a timed delay in a C++ program, and was wondering if anyone has any suggestions on what I can try or information I can look at? I wish I had more details on how I am implementing this timed delay, but until I have more information on h...

Is there a cross-platform way to get the current date and time in C++?

I am trying to use time() to measure various points of my program. What I don't understand is why the values in the before and after are the same? I understand this is not the best way to profile my program, I just want to see how long something take. ...

I am trying to use time() to measure various points of my program. What I don't understand is why the values in the before and after are the same? I understand this is not the best way to profile my program, I just want to see how long something take. ...

I am trying to use time() to measure various points of my program. What I don't understand is why the values in the before and after are the same? I understand this is not the best way to profile my program, I just want to see how long something take. ...

Possible Duplicate: C++ Timer function to provide time in nano seconds I need to measure the duration of a function execution in nanoseconds resolution. Is it possible? Our ordinary computer hardware and software are able to give such a precisi...

I am writing a program that will be used on a Solaris machine. I need a way of keeping track of how many seconds has passed since the start of the program. I'm talking very simple here. For example I would have an int seconds = 0; but how would I go about...

In my thread (using boost::thread) I need to retrieve the current time in ms or less and to convert into ms: Actually, reading here I've found this: tick = boost::posix_time::second_clock::local_time(); now = boost::posix_time::second_clock::local_time...

I've got a small problem caused by insufficient documentation of C++11. I'd like to obtain a time since epoch in milliseconds, or nanoseconds or seconds and then I will have to "cast" this value to another resolution. I can do it using gettimeofday() but...

I need to determine the speed with which Arduino executes a certain function. What would be the best time to do that? So far I found something with a Stopwatch class, but I'm wondering if there's any native method to do that.

I need to determine the speed with which Arduino executes a certain function. What would be the best time to do that? So far I found something with a Stopwatch class, but I'm wondering if there's any native method to do that.

I've created a time point, but I have been struggling to print it to the terminal. #include <iostream> #include <chrono> int main(){ //set time_point to current time std::chrono::time_point<std::chrono::system_clock,std::chrono::...

How to get current date d/m/y. I need that they have 3 different variables not one, for example day=d; month=m; year=y;.

I have a string variable containing time in hh:mm:ss format. How to convert it into time_t type? eg: string time_details = "16:35:12" Also, how to compare two variables containing time so as to decide which is the earliest? eg : string curr_time = "18:35...

I mean: how can I measure time my CPU spent on function execution and wall clock time it takes to run my function? (Im interested in Linux/Windows and both x86 and x86_64). See what I want to do (Im using C++ here but I would prefer C solution): int star...

I wrote a function to get a current date and time in format: DD-MM-YYYY HH:MM:SS. It works but let's say, its pretty ugly. How can I do exactly the same thing but simpler? string currentDateToString() { time_t now = time(0); tm *ltm = localtime(&...

I have been upgrading some old code and have been trying to update to c++11 where possible. The following code is how I used to display the time and date in my program #include <iostream> #include <string> #include <stdio.h> #include &l...

I am new to C++ and I don't know much about its library. I need to do time analysis of different sorting algorithms, for which I need to get the current time in milliseconds. Is there any way to do that?