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need to read data from file through cmd line arguments argc and argv

Aska123 (4)

I have a file named config.txt
which has following data
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//config.txt
 Number of node = 11
Link delay = 1 2 3 4 5 6 7 8 9 10


now I want to read config.txt from command pronpt

also I want to read number of nodes from config.txt and I want to use it for calculation of delay between nodes.


as follows
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int main(int argc, char* argv[]) {
 float delay = 0, d[10];
 FILE* fp = fopen(argv[1],"w");
 int i, num_nodes = readArgFromFile(fp,d);
 for(i = 1; i < num_nodes; i++)
 delay += d[i-1];
 printf("Overall Packet Delay is %2.1f seconds\n",delay);
 fclose(fp);
 }


I have 11 nodes.
link delay between node 1 and node 2 is 2
link delay berween node 2 and node 3 is 2
and so on.

please help in solving this

But I do not know hoe to read data from file and how to use it fro computation
please reply
Last edited on
keskiverto (10402)
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