Error count exceeds 100

Hey all,

I started creating my first C program to test my comprehension of the basics, but I'm running into over 100 syntax errors. I can't tell what I'm doing wrong. Here's the code:

Code:

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

void mainmenu();
int joke();
int calculator();
int addition();
int subtraction();
int multiplication();
int division();
int add ( int x, int y );
int subtract ( int x, int y );
int multiply ( int x, int y );
int divide ( int x, int y );

int main()
{
    system ("cls");
    printf("Hello. Welcome to the program.\n");
    printf("Press any key to continue...\n");
    getchar();
    mainmenu();

}

void mainmenu()
{

    int menu1choice;

    printf("Menu 1\n");
        printf("~~~~~~~~~~\n");
        printf("1. Tell me a joke.\n");
        printf("2. Perform a simple calculation.\n");
        printf("3. Move to Menu 2.\n");
        scanf("%d", &menu1choice);
        switch ( menu1choice ) {
        case 1:{
            joke();
            break;
              }
        case 2:{
            calculator();
            break;
              }
        }
    }
}

int joke()
{
    system("cls");
    printf("How do you get holy water? \n");
    system("pause");
    printf("You boil the hell out of it. \n");
    system("pause");
    system("cls");
    mainmenu();
   
}

int calculator()
{
    int calculatorchoice;

    system("cls");
    printf("What type of calculation would you like to make? \n");
    printf("1.  Addition \n");
    printf("2.  Subtraction \n");
    printf("3.  Multiplication \n");
    printf("4.  Division \n");
    scanf("%d", &calculatorchoice);
    switch ( calculatorchoice ){
        case 1:{
            addition();
            break;
              }
        case 2:{
            subtraction();
            break;
              }
        case 3:{
            multiplication();
            break;
              }
        case 4:{
            division();
            break;
              }
    }
}

int addition()
{
    int x;
    int y;

    system("cls");
    printf("Please input two numbers to be added: ");
    scanf( "%d", &x );
    scanf( "%d", &y );
    printf( "The product of your two numbers is %d\n", add( x, y ) );
    getchar();

}

---

Any help is appreciated

Remove this line as there is usually no sense in including a C++ header in a C program:

Code:

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#include <iostream>

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Change this line:

Code:

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#include <cmath.h>

---

to:

Code:

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#include <math.h>

---

You may still have more syntax errors, but don't worry about the count: fix them one by one.

Thanks!

In addition to that, you've got an extra "}" on mainmenu, all the calculating functions but addition aren't defined (and produce linker errors), and you're not returning anything from functions that are supposed to return ints.

You just couldn't settle for a Hello World eh?

Code:

---

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
 
void mainmenu();
int joke();
int calculator();
int addition();
int add ( int x, int y );
/*  Noted out temporarily because these functions are not yet created.

int subtraction();
int multiplication();
int division();
int subtract ( int x, int y );
int multiply ( int x, int y );
int divide ( int x, int y );
*/
int main()
{
    system ("cls");
    printf("Hello. Welcome to the program.\n");
    printf("Press any key to continue...\n");
    getchar();
    mainmenu();
 
}
 
void mainmenu()
{
    int menu1choice;
    system("cls");
    printf("Menu 1\n");
        printf("~~~~~~~~~~\n");
        printf("1. Tell me a joke.\n");
        printf("2. Perform a simple calculation.\n");
        printf("3. Move to Menu 2.\n");
        scanf("%d", &menu1choice);
        switch ( menu1choice ) {
        case 1:{
            joke();
            break;
              }
        case 2:{
            calculator();
            break;
              }
        }
    }
 
int joke()
{
    system("cls");
    printf("How do you get holy water? \n");
    system("pause");
    printf("You boil the hell out of it. \n");
    system("pause");
    system("cls");
    mainmenu();
}
 
int calculator()
{
    int calculatorchoice;
 
    system("cls");
    printf("What type of calculation would you like to make? \n");
    printf("1.  Addition \n");
    printf("2.  Subtraction \n");
    printf("3.  Multiplication \n");
    printf("4.  Division \n");
    scanf("%d", &calculatorchoice);
    switch ( calculatorchoice ){
        case 1:{
            addition();
            break;
              }
/*  Noted off because cases call functions that do not exist yet.
        case 2:{
            subtraction();
            break;
              }
        case 3:{
            multiplication();
            break;
              }
        case 4:{
            division();
            break;
              }*/
    }
}
 
int addition()
{
    int x;
    int y;
 
    system("cls");
    printf("Please input two numbers to be added: ");
    scanf( "%d", &x );
    scanf( "%d", &y );
    printf( "The product of your two numbers is %d\n", add( x, y ) );
    getchar();

}
int add(num1,num2)
{}

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This compiles, but a good practice is to add a function, compile, debug, repeat. That way you don't run into 20 compiler errors. By the way, you had an extra

Code:

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}  //made me put code tags around this -_-

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in your main menu. This is most often caused by poor indentation practices.

EDIT: Memcpy, you beat me to that.

* Proper indentation is encouraged for all programming languages.
* It shows levels of nesting, nested if statements , for loops, etc.
* Anyone reading your code can tell whats executing inside of what.
* It shows scope. If everything is indented you know the scope of variables.
* Easier to read.
* Better programming sense.

Suggested reading:
http://cboard.cprogramming.com/c-pro...t-process.html