Thread: How to read files into a struct

Is it possible to read dat files into a struct and if so how the heck do we do that??? Oh and then I need to take the struct and turn it into a node.....

http://groups.google.com/groups/sear...+c&qt_s=Search
http://groups.google.com/groups/sear...ct&qt_s=Search

Do or do not, there is no try. But um. In your case, you should really try, because yr whiny.

>> Maybe, but at least I'm self aware

Zing! Where'd you come up with that one? Ego tripping? LSD tripping? Brushing your teeth? Have an identity crisis and lie to yourself to to rationalize the fact that you're wrong?

>> I'm working in C trying to read a dat. file into a struct....if I wasn't clear before.

I posted links demonstrating techniques to read a structure from a file, and you want to read a file into a structure. Are you saying that I didn't get that? Those are exactly the same things! It doesn't make much sense to read one a file into a structure and then make an isolated node with it, but I suppose if there was a chain of such files it could make sense.

I haven't tried anything yet. I've just never encountered it. I don't necessarily need an answer as much as I just need to see some prototypes or even just pseudo-code.

Basically I have a dat file with lines like this: XXXX XXXXX XXXXXX XXXXXX
I need to shove that data in my struct....I could just read it in, what I do not know is how to split it up. The only thing I've done is stuff like this:

Code:

#include <stdio.h>
#include <ctype.h>
#include <string.h>
#define SIZE 63
#define LBUFSIZE 64

int getWord(FILE *fp, char wbuf[], int c);
void output(FILE *csis, char lbuf[]);
FILE *fp;
FILE *csis; 
	

void main(void)
{
	csis = fopen("csis.dat", "w");
	fp = fopen("getty.dat", "r");

	int c = 0;

	char wbuf[SIZE];
	char lbuf[LBUFSIZE];



	
		lbuf[0] = '\0';

		c = getWord(fp, wbuf, c);

		while(c != EOF)
		{
			//add 1 for space
			if((strlen(lbuf) + 1 + strlen(wbuf)) > 62)
			{
				output(lbuf);
				strcpy(lbuf, wbuf);
			}
			else
			{
				//enough space for this word
				strcat(lbuf, " ");
				strcat(lbuf, wbuf);
			}
		c = getWord(fp, wbuf, c);

		}
		if (c == EOF && strlen(lbuf) > 0)
		{
			output(csis, lbuf);
		}
		

	fclose(fp);

	fclose(csis);
	

}



int getWord(FILE *fp, char wbuf[], int c)
{
	
	
	int i = 0;

	if(isalpha(c))
	{
		wbuf[i] = c;
		i++;
	}

	c = fgetc(fp);

	while(c !=EOF && isalpha(c))
	{
	
		wbuf[i] = c;
		i++;
		c = fgetc(fp);
		
	}
	
	wbuf[i] = '\0';	

	while(c != EOF && !isalpha(c))
	{
		c = fgetc(fp);
	}
	return c;

}
void output(FILE *csis, char lbuf[])
{
	
	

	printf("%s\n", lbuf);
	fprintf(csis, "%s\n", lbuf);


}

Which just reads in a file and then writes it out again.....so that's my sad limited knowledge...

oh and here's what my struct looks likeprobably got that wrong too)

Code:

typedef struct employee
{
	char fname[10];
	char lname[15];
	char gender;
	int tenure;
	char rate;
	float salary;
} *PEOPLE

pretty simple

That void main(void) was for something else......

thanks....I realize that int should be used for main....it just wasn't pertenant so I didn't throw it int here.....but I will from now on....thanks