Write a C program that takes a command line argument (a file name), opens
the file, and prints the length of the longest line to standard output. Read the file one
character at a time. Do not use any arrays. Do error checking.

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#include <stdio.h>

int main(int argc, char* argv[])
FILE* fp;
char* fname;
char ch;
char str[] = "";
char delim[] = "\n";

if (argc < 2)
printf("The file name is missing\n");
fname = argv[1];
printf("File name: : %s\n", fname);

fp = fopen(fname, "r");
int max = 0;

if (fp)

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