Passing an array to a function
I am having trouble passing an array to a function, here is my code.
Code:
void get_fields(char *fld1);
Code:
int main(void)
char array[100];
get_fields(array);
function code
Code:
/*****************************************************************/
/* get_fields.c-- read sequential text file */
/* -- file has newline delimited "records" */
/* -- records have tab delimited "fields" */
/* a C Beginner's program: */
/* IF THE COMMENTS ARE WRONG PLEASE CORRECT THEM! */
/* This is meant to be a learning/teaching program. */
/* This program sacrifices elegance for readability */
/* If suitable, this may be added to the C course. */
void get_fields(char *fld1)
{
char record[100]; /* array to hold each "record" */
//*fld1, *fld2, *fld3, *fld4; /* pointers to "fields" */
FILE *fin; /* pointer to input file */
fin = fopen(FILENAME, "r"); /* open the file to read */
/* print a header */
printf("%-25s %-20s %-15s %-15s\n",
"Field 1\\t", "Field 2\\t", "Field 3\\t", "Field 4\\n");
/* the while loop is used to read in the file that fin points to */
/* use fgets() to read the file. fgets() reads up to a newline */
/* fgets() includes the newline in the string it reads and tacks */
/* a '\0' onto the end of the string. It should be familiar. */
while (fgets(record, sizeof(record), fin))
{
/* strtok() will be looking for a newline at the end of record */
if (record[strlen(record) - 1] != '\n')
/* make sure the newline is there */
record[strlen(record) - 1] = '\n';
/* use strtok() to get each "field". strtok()'s usage is: */
/* char *ptr = strtok(char *s1, const char *s2); */
/* the first call of strtok() searches the string s1 for the */
/* `token' s2. If found, it replaces the token with '\0' and */
/* sets a pointer to the next character */
fld1 = strtok(record, "\t");
/* after that each call has a NULL pointer as the 1st argument */
/* & starts searching for another token from the saved pointer */
/* if strtok() can't find the token, it returns a null pointer */
/* strtok() is a tricky function to use. 8^D */
//fld1+20 = strtok(NULL, "\t");
//fld3 = strtok(NULL, "\t");
//fld4 = strtok(NULL, "\n");
/* finally, print each string using printf() for formatting */
//printf("%-25s %-20s %-15s %-15s\n", fld1, fld2, fld3, fld4);
}
fclose(fin);
//return 0;
}
I get a segmentation fault
thanks in advance Mick
