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How can we take input from a file and print output in the file in C programming?

+3 votes
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How can we take input from a file and print output in the file in C programming?
posted Apr 9, 2016 by Shahsikant Dwivedi

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Use the following commands -
fscanf - for the input of the program from the file.
fprintf - for the output to be written to the file.
used freopen in read and write mode, its working.

1 Answer

+1 vote
 
Best answer

try this method,
1. freopen("NameOfInputFile.in","r",stdin); // set input file in read mode and from this file in a particular format the compiler will read all inputs and
2. freopen("NameOfOutputFile.out","w",stdout); // print output in this .out file.
Use both of them like:

int main()
{
 freopen("NameOfInputFile.in","r",stdin); 
 freopen("NameOfOutputFile.out","w",stdout); 
 // start code here 
.
.
.
return 0;
}
answer Apr 11, 2016 by Shivam Kumar Pandey
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