7 More Discussions You Might Find Interesting
1. Programming
Hi,
I have a file with contents like "abcd 1234" .What i need is get that integer and replace that with 0. So i used fscanf(fp,"%s %d", str, &num); This is having some problem.
There can be multiple space/tab between string and number. How to replace that number with 0 in same file? (4 Replies)
Discussion started by: explore
4 Replies
2. UNIX for Dummies Questions & Answers
hi there...
i have a question regarding the fscanf function...
let's say i have a data:
1 2 3 4 5 6
7 8 9 1 2 3
4 5 6 7 8 9
1 2 3 4 5 6
how do i read only the first COLUMN, or the second COLUMN or the third COLUMN or etc....??????
thanks (1 Reply)
Discussion started by: theunknown
1 Replies
3. Programming
Hi
I have a file like that:
1 2 3 4 5 6 7 8
and I want print on stdout:
1 3 8
in other words i want choose what print out.
I was thinking to use fscanf as:
fscanf(file_in,"%d %d %d",&a, &b,&c);
but in this way i get:
1 2 3
Is there a solution using fscanf to obtain my... (2 Replies)
Discussion started by: Dedalus
2 Replies
4. Programming
hey guys, I'm working on a term project for a c/unix class. The basis of the program is that it will calculate the weight/balance of a plane. I'm hoping to have an input file as such:
"
Pilot weight:
Passenger weight:
baggage wieght:
etc
"
and the idea is that I'm trying to use... (2 Replies)
Discussion started by: jlangholzj
2 Replies
5. Programming
I use fopen, fscanf, fclose to read a file. It can work well. since many files should be read, a function is created with the same code. But in the function, fscanf can not work well.
for example, the first line of the the file is: > filename
but the fscanf will give: 207/23/eee/34
it appears... (2 Replies)
Discussion started by: cdbug
2 Replies
6. Programming
I keep trying to use fscanf() and for some reason I can't get the syntax down and always get seg faults. I'm on a SunOS 5.5.1, and my current code looks like this:
int n1, n2, n3, n4, n5, n6;
/* open config file */
if (fileptr = fopen(filename,"r") == NULL) {
printf("couldn't open... (3 Replies)
Discussion started by: j_t_kim
3 Replies
7. Programming
thanks to everyone for your earlier replies, but i have yet another problem with file i/o. i'm trying to read multiple lines with the same file, and have been using the following code to take in the first two lines from a file...
fscanf(fileptr, "%d %d %d %d %d %d\n", &n1, &n2, &n3, &n4, &n5,... (1 Reply)
Discussion started by: j_t_kim
1 Replies