take table from txt file and store it into array in c

Question

i have to create a c file that reads values from text file, and passes them into an array. new to c.

file.txt to read from

 1989 500 222000
 1997 1500 180000
 1976 4000 20000
 1967 20000 10000

program should read table data from stdin. as follows (from the shell): % ./tsort file.txt

my code so far

int main( int argc, char *argv[] ) {
     FILE *inputFile;
     inputFile = fopen( argv[2], "r" );
     int number;

    while(fscanf(inputFile, "%i", number)==1)
    {
            printf("%i", number);
    }

return 0;

   }

Answer 1

Try this. Note the & on number and the checking of the inputFile for null. The command line should be "./tsort file.txt"

int main( int argc, char *argv[] ) {
     FILE *inputFile;
     int number;

     if(argc != 2) {
         printf("Usage: %s filename\n", argv[0]);
         return 1;
     }
     inputFile = fopen(argv[1], "r" );

    if(inputFile == 0) {
        printf("Can't open '%s'\n", argv[1]);
        return 1;
    }

    while(fscanf(inputFile, "%i", &number)==1)
    {
            printf("%i\n", number);
    }

    return 0;

   }