Keeping values intact in function 1

[countdrak]

I have a function which is called several times, and I want the variables declared in the function to retain their values when I call the function again, without having to pass them in all the time.

Is that possible? For example, in the following code, I don't want bleh's value to be reset when I call my_func again. After the 1st iteration bleh's value is 7, and I want it to begin as 7 in the 2nd iteration.

Is there a way to do that?

#include <stdio.h>
#include <stdlib.h>


int my_func(int x, int time);

int main()
{
	int i;
	int j;
	j= 7;
	for (i=0; i<10; i++)
	{
		my_func(j, i);
		j=j+i;
	}
	return 0;
}


int my_func(int x, int time)
{
	int bleh;


	if (time == 0)
		bleh = 0;
	
	printf("Before bleh = %d\n", bleh);

	bleh = bleh + x;
	printf("After bleh = %d\n", bleh);

	return 0;
}

 

[xwb]

Declare them as static. In fact, you don't even need the if statement.

int my_func(int x, int time)
{
    [COLOR=BLUE]static[/COLOR] int bleh[COLOR=BLUE] = 0[/COLOR];
[COLOR=BLUE]
    /*
    if (time == 0)
        bleh = 0;
    */[/COLOR]
    printf("Before bleh = %d\n", bleh);

    bleh = bleh + x;
    printf("After bleh = %d\n", bleh);

    return 0;
}

 

[xwb]

Sorry - you probably do need the if statement in case you want to reset bleh.