length « read « C File Q&A

1. Read from file of unknown length, then terminate    cboard.cprogramming.com

2. reading a file of unknown length    cboard.cprogramming.com

#include #include #include int main (void) { FILE * txtin; txtin = fopen("junk.txt", "a+"); if (txtin != NULL) { fputs("SAGE - set a good example", txtin); char buf[BUFSIZ] = {'\0'}; /* one of your biggest responsibilities is just supplying big * enough storage space */ while (fgets(buf, BUFSIZ, txtin) != NULL) { /* buf now contains a line... ...

3. Unknown Length and File Reading    forums.devshed.com

I must read in a file of with a set number of columns (10) and an unknown number of rows. I will then store them in a multidimensional vector. I am using the eof () to read to the end of a file (as the filesize may vary). Would that include whitespace? Is there something better to use? Do you have ...

4. reading in file data with undetermined length    forums.devshed.com

I am sure that this is simple and I am missing some thing. but here goes. I am trying to read in a file (I know the number of columes and rows) which looks like: number_grid_y_row = 2 number_grid_x_columns = 5 12.00045 45.00056 18.0789 125.000789 156.03266 45.0365 1235.000584 1256.36985 1256.1254 569.021 the code that I am trying to use is this ...

5. Reading varied length numbers from a file    daniweb.com

From what little I understand of scanf it appears that it reads from stdin (and I read from file) and also, I don't exactly know how many columns will be there. When I looked at scanf I think I see it looking for a specific amount of integers or words or whatever, but the problem with that is that I don't ...

6. Read file with unknown buffer length    daniweb.com

#include int main() { char buf[255]; <

7. Reading from a variable length file    tek-tips.com

I'm assuming that the records ahve some sort of delimiterOption 1Read the whole file into a buffer. i.e. stat the file malloc of enogh memory read in the file use something like strtok to break up the file into records.Option 2Create a buffer big enough to handle the biggest record. Read in the file byte at ...