A little help please

[MrNerd]

Ok so I been following this book "How to teach Yourself C"

and its pretty old but its working and helping me learn but now im stuck on loops

I use Cygwin to compile CodeBlocks to Write

#include <stdio.h>

main()
{
	char smplChr, again;


	again = 'A';
	while(again == 'A')
		{
		printf("What char do you need the ASCII value of? > ");
			scanf("\n%c",smplChr);
		printf("\n The ASCII VALUE OF %c is %d\n ",smplChr,smplChr);		
		printf("\n\nEnter "A" To Look up Another Value " );
		printf("\nOr anyother letter if your Finsihed. ");
			scanf("\n%c",&again);
		}
		
		
}

Error from Compiler:

MrNerd@MrNerd-PC ~/HelloWorld/anscii$ gcc main.c -o main
main.c: In function ‘main’:
main.c:9:8: warning: missing terminating " character
main.c:9:2: error: missing terminating " character
main.c:10:3: error: expected expression before ‘{’ token
main.c:19:1: error: expected expression before ‘}’ token

[Salem]

> printf("\n\nEnter "A" To Look up Another Value " );

You need to escape quotes to print them

    printf("\n\nEnter \"A\" To Look up Another Value " );

[MrNerd]

> printf("\n\nEnter "A" To Look up Another Value " );

You need to escape quotes to print them

    printf("\n\nEnter \"A\" To Look up Another Value " );

ok so i took them out same error...could it be my compiler?

[Salem]

Dunno - your error messages don't line up with your code.

This is what I get with your code.
$ gcc foo.c
foo.c: In function ‘main’:
foo.c:12:13: warning: format ‘%c’ expects argument of type ‘char *’, but argument 2 has type ‘int’ [-Wformat]
foo.c:14:28: error: expected ‘)’ before ‘A’

This is what I get with my fix.
$ gcc foo.c
foo.c: In function ‘main’:
foo.c:12:13: warning: format ‘%c’ expects argument of type ‘char *’, but argument 2 has type ‘int’ [-Wformat]

The last remaining fix being
scanf("\n%c",&smplChr);

[MrNerd]

Dunno - your error messages don't line up with your code.

This is what I get with your code.
$ gcc foo.c
foo.c: In function ‘main’:
foo.c:12:13: warning: format ‘%c’ expects argument of type ‘char *’, but argument 2 has type ‘int’ [-Wformat]
foo.c:14:28: error: expected ‘)’ before ‘A’

This is what I get with my fix.
$ gcc foo.c
foo.c: In function ‘main’:
foo.c:12:13: warning: format ‘%c’ expects argument of type ‘char *’, but argument 2 has type ‘int’ [-Wformat]

The last remaining fix being
scanf("\n%c",&smplChr);

must be my compiler then what do you recomend i use?? linux or windows and what compiler with what editor
?

[Salem]

At the command prompt, type this

$ cat main.c
$ gcc main.c -o main

[MrNerd]

OUTPUT:

        while("again == 'A')

LOL thanks for that cat i see better on black and white!


i might just nano from now on. thanks alot. it worked when i removed that "



BUT when i try to run i get

MrNerd@MrNerd-PC ~/helloworld/anscii
$ ./main
What char do you need the ASCII value of? > y
Segmentation fault (core dumped)


MrNerd@MrNerd-PC ~/helloworld/anscii

[Adak]

replace these two lines:
scanf("\n%c",smplChr); //&again is OK, but:

with:
scanf(" %c",&smplChr); //note the space before the %, no \n, and the & (ampersand), for the first scanf() line of code.

[Salem]

> What char do you need the ASCII value of? > y
> Segmentation fault (core dumped)
I take it you didn't catch the "last remaining fix" in my earlier post then.

> LOL thanks for that cat i see better on black and white!
Which begs the question, why wasn't your code in post #1 a COPY/PASTE from your IDE editor?

I mean, if you've copy/pasted, the stray " would have been posted on the forum as well, and the mistake would have been blindingly obvious to us.

[MrNerd]

> What char do you need the ASCII value of? > y
> Segmentation fault (core dumped)
I take it you didn't catch the "last remaining fix" in my earlier post then.

> LOL thanks for that cat i see better on black and white!
Which begs the question, why wasn't your code in post #1 a COPY/PASTE from your IDE editor?

I mean, if you've copy/pasted, the stray " would have been posted on the forum as well, and the mistake would have been blindingly obvious to us.

i did fix it it turned out to just be the compiler crashing or something i just reinstalled codeblocks with the GNU GCC Compiler and its working fine thanks alot.