Thread: Linker error help

Hi,

I would like to ask for some help I'm using turbo c. I search a code from the net here's the code

Code:

#include <time.h>
	#include <stdio.h>

	int main(void)
	{
		struct tm str_time;
		time_t time_of_day;

		str_time.tm_year = 2012-1900;
		str_time.tm_mon = 6;
		str_time.tm_mday = 5;
		str_time.tm_hour = 10;
		str_time.tm_min = 3;
		str_time.tm_sec = 5;
		str_time.tm_isdst = 0;

		time_of_day = mktime(&str_time);
		printf(ctime(&time_of_day));

		return 0;
	}

I don't know why I'm encountering LINKER ERROR: UNDEFINED SYMBOL _STRUCT IN MODULE

please I need some help

There is no help for you if you're using TurboC.

Tell us your real OS, and we can suggest some real compilers.

Also, if you missed the intro threads on HOW TO POST CODE (which you did), what does that say about your attention to detail?

Consider one of the following
Downloads - get the larger "mingw" package, as this one is the IDE and compiler.

smorgasbordet - Pelles C

Visual Studio2010 Express Editions |Microsoft Visual Studio


If you really want to make sure the code you're writing is good, then download all of them
If the same code works with several compilers, you're probably doing it right.

@Salem

I've already tried the code using turbo c+, and it works fine. Thank you for the different compilers but the thing is I need to write this code using Turbo C. I want to learn if Turbo C can handle military time.

I'm a bit curios if turbo C can handle time that is input by the user, because I wrote a program that computes the total hours worked by an employee. In the program I wrote I used atoi() to compute the time. I wanted to simplify it or make my code shorter by using time.h that is why I wanted to learn why I'm encountering the Linker error.

> I want to learn if Turbo C can handle military time.
And you think it's going to handle Y2K issues - it's 1980's technology.

Listen, we simply don't care any more about supporting that old fossil. Support around the web is drying up - make a choice, if you don't want to be stranded in the middle of the desert.

> I want to learn if Turbo C can handle military time.
And you think it's going to handle Y2K issues - it's 1980's technology.

Listen, we simply don't care any more about supporting that old fossil. Support around the web is drying up - make a choice, if you don't want to be stranded in the middle of the desert.

Specifically, look up gmtime() and localtime()

Yes, you can use difftime

Any pelles tutorials will be on the pelles website.

Originally Posted by bonks

@salem
Do you have a tutorial on how to use Pelles I would like to know how to use it. Thanks

The best PellesC tutorial is it's own help file....

Open the IDE, click help -> Contents and start reading.

It's one of the most complete help files I've ever seen. All library calls are detailed as well as IDE usage and a lot of information about C99 as well.

If you need a beginners tutorial on C itself, there is a good one on this Forum's parent site. or you can google "C99 tutorial" and take your pick.