Dave's Brain

Browse - programming tips - make a timestamp

Date: 2010jan19
Language: C/C++
Level: beginner
OS: Linux

Q.  How can I quickly make a nice timestamp string?

A.  Here's a function that does that:

	#include <time.h>

	// eg "Wed Jun 30 21:49:08 1993"
	static void timeStamp(char *szTime, const size_t size)
	{
		time_t		now;

		szTime[0] = '\0';
		if (size < 25) return;
		now = time(NULL);
		ctime_r(&now, szTime);
		szTime[24] = '\0';	// Zap the newline
	}

	void exampleUse()
	{
		char	szTime[100];

		timeStamp(szTime, sizeof(szTime));
		printf("It is now %s\n", szTime);
	}

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