Thread: why am I getting these errors?

Code:

/*********************************************************/
// Illegal: not valid C. Must be enclosed in comments.
Program Name:program1
Author:geekrockergal


/***************PREPROCESSOR DIRECTIVES********************/

/********************HEADER FILES**************************/
#include <CONIO.H> /*Console I/O Header*/
#include <STDIO.H> /*StandardI/O Header*/
/******************NAMED CONSTANTS*************************/

/*****USER-DEFINED AND ENUMERATED DATA TYPES***************/

/*****************FUNCTION PROTOTYPES**********************/

/***********************GLOBAL VARIABLES*******************/

/*******************MAIN FUNCTION**************************/

// No such thing as void main. There is only int main.
void main (void)
{
    printf("Please input letter: ");
    int %c // %c is not a valid variable name. Missing ;
     // %c is not a variable or name, and variables must be passed as additional arguments (ie a , before them).
    printf("The letter you have inputted is: "%c);
}
/***********************OTHER FUNCTIONS********************/

And as for the include errors... perhaps you are not compiling right - the compiler cannot find the required headers or if you use an IDE, it's incorrectly configured. Hard to say.

Originally Posted by Elysia

Code:

/*********************************************************/
// Illegal: not valid C. Must be enclosed in comments.
Program Name:program1
Author:geekrockergal


/***************PREPROCESSOR DIRECTIVES********************/

/********************HEADER FILES**************************/
#include <CONIO.H> /*Console I/O Header*/
#include <STDIO.H> /*StandardI/O Header*/
/******************NAMED CONSTANTS*************************/

/*****USER-DEFINED AND ENUMERATED DATA TYPES***************/

/*****************FUNCTION PROTOTYPES**********************/

/***********************GLOBAL VARIABLES*******************/

/*******************MAIN FUNCTION**************************/

// No such thing as void main. There is only int main.
void main (void)
{
    printf("Please input letter: ");
    int %c // %c is not a valid variable name. Missing ;
     // %c is not a variable or name, and variables must be passed as additional arguments (ie a , before them).
    printf("The letter you have inputted is: "%c);
}
/***********************OTHER FUNCTIONS********************/

And as for the include errors... perhaps you are not compiling right - the compiler cannot find the required headers or if you use an IDE, it's incorrectly configured. Hard to say.

thanks Im using borland by the way

I'm not sure that might be a problem. Some operating systems like Windows is not case-sensitive, so telling it to include STDIO.H or stdio.h won't matter.
But I do agree that it might be better to keep them lower case.

Originally Posted by BEN10

i think what u're going wrong is that STDIO.H & CONIO.H are not the headers in c.the proper headers are stdio.h & conio.h as c is case sensitive.

It's true that c is case sensitive but for the name of the header file it doesn't matter if u write it with lower/upper letters.

Originally Posted by ralu.

The error is because this:

Program Namerogram1
Author:geekrockergal

This sould be a comment so make it a comment:
/*
Program Namerogram1
Author:geekrockergal
*/

thanks

Originally Posted by BEN10

i think what u're going wrong is that STDIO.H & CONIO.H are not the headers in c.the proper headers are stdio.h & conio.h as c is case sensitive.

Ive tried it in both upper and lower case and I still get the same error

Originally Posted by Adak

Internet forums and newsgroups are not always easy on your feelings. Try to ignore most deprecating comments you encounter. That will let you concentrate on the reason you came to the forum in the first place, and use the forum for what it was intended for - programming information.

Did you get that bit about the % sign? It should not be a part of any variable. It's a special character in C that tells the compiler "I've got a variable coming up right after me (and maybe some modifiers for that variable, also)".

So

Code:

scanf("%c", &var);  //enter the var variable it's a character - just one, and this is it's address.
scanf("%d", &age); //enter the integer variable named age, and this is it's address.
scanf("%s", name) //the name variable is a char array - name[], and "name" is the address.

printf("%c", var);  //print the char variable named var.
printf("%3d, age);  //print the integer variable named age, inside a field that is 3 char's wide.
printf("%s, name); //print the string variable named name.

There are other data types, of course, and they will all use the % in front of them, for scanf(), fscanf(), printf(), fprintf(), and related functions, in C.

yes I did understand the bit about % thank you

I suggest you use fgets when reading strings, however.
fgets(name, sizeof(name), stdin);
For a full explanation (this might be above your level, which is why I suggested the above), you can read this: http://apps.sourceforge.net/mediawik...tle=Scanf_woes
It explains why it's bad to read strings with scanf and how to fix it.

Originally Posted by Elysia

I suggest you use fgets when reading strings, however.
fgets(name, sizeof(name), stdin);
For a full explanation (this might be above your level, which is why I suggested the above), you can read this: http://apps.sourceforge.net/mediawik...tle=Scanf_woes
It explains why it's bad to read strings with scanf and how to fix it.

okay try and find a way around not using strings

Originally Posted by ralu.

It's true that c is case sensitive but for the name of the header file it doesn't matter if u write it with lower/upper letters.

as was said before - it depends on operating system