Thread: CHARACTER FREQUENCY WITH ARRAYS [EOF not working]

  1. #1
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    CHARACTER FREQUENCY WITH ARRAYS [EOF not working]

    Code:
    #include <stdio.h>
    #include <ctype.h>
    #include <assert.h>
    
    
    //Frequency table of input
    int main(int argc, char*argv[])
    {
        int counts[26] = {0};
        int cypherChar = getchar();
    
    
        while(cypherChar != EOF)
        {
            if(isalpha(cypherChar))
            {
                counts[tolower(cypherChar) - 97]++;
            }
            cypherChar = getchar();
        }
    
    
        printf("Frequency Table\n");
    
    
        int i = 'a';
        while(i <= 'z')
        {
            printf("%c %d\n", i, counts[i - 'a']);
            i++;
        }
        return 0;
    }

    When I replace EOF with 10(ASCII value for Line Feed) it works fine but with EOF , NO OUTPUT!!

  2. #2
    and the hat of int overfl Salem's Avatar
    Join Date
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    How do you send EOF?

    At the start of a line, press ctrl-z (dos/wondows), or ctrl-d (unix/linux), then perhaps enter.
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.

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