/in/fileReverse.c: In function 'main':
/in/fileReverse.c:23:41: error: conversion to 'size_t {aka long unsigned int}' from 'int' may change the sign of the result [-Werror=sign-conversion]
             thisLine[i] = thisLine[len-1-i];
                                         ^
/in/fileReverse.c:24:27: error: conversion to 'size_t {aka long unsigned int}' from 'int' may change the sign of the result [-Werror=sign-conversion]
             thisLine[len-1-i] = temp;
                           ^
cc1: all warnings being treated as errors