Thread: problem updated

Originally Posted by hen_ry

Hi,

After I posted to the question, I have do some searching on delimiter.

Try to modify the program, it almost solved the problem.

Only the number 256 problem remain unresolved.

Can someone please help.

Thanks.
Henry

Code:

#include <stdio.h>
 
int main()
{
    FILE *fp=fopen("e:\\text.txt", "r");
 
 
    char city[256],country[256];
    int  pop;
 
    while(!feof(fp))
    {
        fscanf(fp, "%[^%s%s%d]", city,country, &pop);
        printf("%s%s%d",city,country, pop);
    }
 
    fclose(fp);
 
    getchar();
    return 0;
}

What I want to do is to
1. Get city name from user
2. If is in file, print its population.

If is do able, do I have to
...............1. Copy the population input to tmp[]
...............2. Clear out the country and population input
...............3. Compare char by char to see the input city name is in the file before , in each line.
...............4. If found
.......................4.1 put back tmp[] into buffer
....................... assume
..................................(A) country[] removed from buffer &
..................................(B) the buffer now contain only two input info, (A) city name[] (B) populati.
......................4.2 Print the cityname and its population.

Where is your scanf() to get the city's name from the user?

You need to really study up on the basics, here. You don't need to "remove" anything. Just print out the strings that you need to print out, and don't print out the strings you don't want to have printed.