Thread: Program works for stdin but fails for a file.

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  1. 03-21-2020 #1
    felixthunder
    felixthunder is offline
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    Program works for stdin but fails for a file.

    I am studying data structures and was asked to build a program that uses a stack to reverse lines of text. Here it is: https://pastebin.com/raw/CGq6ZaHM

    The problem is: it works for the stdin (when I redirect some input into it), but when I call it with a file as argument, the following error appears:

    Code:
    free(): invalid pointer
    I could not find how free gets a invalid pointer from using getc(fp) instead of getc(stdin).
    Can someone help me find the error?
    Last edited by felixthunder; 03-21-2020 at 02:21 PM.
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