hey beagleman

[God]

i might let you edit your profile if you tell my why this program gives me an infinite loop for all statements other than '.'



#include <stdio.h>
#include <stdlib.h>

#define SENTINEL '.'

int
main()
{

char checksum, finalcheck;
int sum, check;

sum = 0;

while(sum != 46)
{

printf("Enter a one-line message. Complete your message with a period.\n");
printf("Enter a message: ");

while(checksum != SENTINEL)
{
scanf("%c", &checksum);
sum += (int)checksum;
}
if(sum != 46)
{ check = sum % 64;

finalcheck = (char)(check + 32);

printf("Checksum: %c\n", finalcheck);
}
else
printf("Program ended.\n");


}

return(EXIT_SUCCESS);
}

[God]

i have to submit it at midnight so you have til then to find whats wrong and give me enough time to fix it.

[God]

you did say the only way you could defeat dogar was in a computer competition. who knew it would come to fruition.

[Kirby]

God go to cosmo and ask flaming flamingo, he is real good with the code.

He made astriods.

[Lord]

what's astroids

[Lord]

this thread is exciting

[Kirby]

You never played astriods?

[Lord]

you mean like the 1980s computer game?

[Pure Yoshi]

Wow..
Doesn't give me much time..
I will do my best to figure it out.. :L
If I get an answer, I'll post it.

[pichubro]

I think Yoshi just revealed himself as beagleman.

[Khaos]

you have 2 hours if gods in my timezone. GET CODING MAN

[Rayne]

indent your code. its painful to read.

[Rayne]

also i dont understand what youre trying to do here. at first i assumed you were trying to count the number of characters but youre doing weird arithmetic with sum. either way, i think the cause of the infinite loop is that after the second while, though youre asking them to type a sentence, youre only scanning the first character which will never be a period unless you just enter a period. the loop only stops when the scanned character is a period so yeah infinite loop for anything other than a period.

[trixie]

You need to initialize checksum before using it to check a condition!

^ First thought. Reading the rest now.

[trixie]

also i dont understand what youre trying to do here. at first i assumed you were trying to count the number of characters but youre doing weird arithmetic with sum.

Yeah, why are you converting the characters to their integer values and adding them together?

[trixie]

while(sum != 46)
{

printf("Enter a one-line message. Complete your message with a period.\n");
printf("Enter a message: ");

while(checksum != SENTINEL)
{
scanf("%c", &checksum);
sum += (int)checksum;
}


if(sum != 46)
{ check = sum % 64;

finalcheck = (char)(check + 32);

printf("Checksum: %c\n", finalcheck);
}
else
printf("Program ended.\n");
}

}

Does this not mean that when control comes out of the while loop, sum= 46? It's never going to enter the if condition then. What's 46 for, and can it be changed to while(sum<=46) or something.

[Rayne]

#include <stdio.h>
#include <stdlib.h>

#define SENTINEL '.'

int main()
{

    char checksum, finalcheck;
    int sum, check;

    sum = 0;

    while(sum != 46)
    {

        printf("Enter a one-line message. Complete your message with a period.\n");
        printf("Enter a message: ");

        while(checksum != SENTINEL)
        {
            scanf("%c", &checksum);
            sum += (int)checksum;
        }
        if(sum != 46)
        { 
            check = sum % 64;

            finalcheck = (char)(check + 32);

            printf("Checksum: %c\n", finalcheck);
        }
        else
            printf("Program ended.\n");


    }

    return(EXIT_SUCCESS);
}

[trixie]

How did you do that, Rayne?

[Rayne]

[code] tags

[trixie]

Oh yeah, it didn't strike me because I've never used it

[Rayne]

i wasnt sure if vb had it. it was a shot in the dark.

[Rayne]

You never played astriods?

ASTEROIDS you moron

[trixie]

Have you learnt any C yet?

[Rayne]

do you read what you write? what the hell is ass-tree-odds?

[Rayne]

Have you learnt any C yet?

dont know c. i am competent in c++ and know a fair bit of python and php.