C file handling program

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Please guide me about this program, that will read a C source file and verify that the number of right and left braces in the file are equal. Use getc() function to read the file.

What I have tried:

studying about file handling.

Posted 16-Oct-17 1:37am

Member 13466026

Updated 16-Oct-17 1:57am

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Jochen Arndt · Answer 1 · 2017-10-16T01:55:00

This looks like homework. Therefore, I (and other's here) will not write the code for you.

But this task is not difficult. Just try it yourself:

If necessary read about the main function and passing arguments
Declare variables to count the number of opening and closing braces
Open the file using fopen - C++ Reference[^]
Use a while loop that reads the characters with getc - C++ Reference[^] until the end of the file is reached (getc returns EOF - C++ Reference[^])
Check if the character is a brace and increment the corresponding variable if so
Close the file using fclose - C++ Reference[^]
Print the result using printf - C++ Reference[^]

CPallini · Answer 2 · 2017-10-16T01:57:00

Set a open (left) brace counter, say cnt=0.
read a int, say c, with fgetc(). If c == -1 'end of file' has been reached, hence goto step 6.
if c ==' {' then increment cnt.
if c == '}' then decrement cnt. Check if (cnt < 0) and report failure (unbalanced brace) in such a case.
goto step 1.
if (cnt == 0) report success, otherwise report failure.

C file handling program

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