Is this correct? The code .

[Valz]

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

void Menu();
void BinToDec();
void DecToBin();
void OctToDec();
void DecToOct();
void HexToDec();
void DecToHex();

int main()
{
Menu();
void BinToDec();
void DecToBin();
void OctToDec();
void DecToOct();
void HexToDec();
void DecToHex();
return 0;
}

void Menu()

{
int Choice;

do
{
system ("cls");
printf("\n\n\t\tEG1005 MiniProject 02 Operations");
printf("\n\t\t==================================");
printf("\n\t\tProject Operations:");
printf("\n\t\t 1. Binary to Decimal Conversion ");
printf("\n\t\t 2. Decimal to Binary Conversion ");
printf("\n\t\t 3. Octal to Decimal Conversion ");
printf("\n\t\t 4. Decimal to Octal Conversion ");
printf("\n\t\t 5. Hexadecimal to Decimal Conversion ");
printf("\n\t\t 6. Decimal to Hexadecimal Conversion ");
printf("\n\t\t 7. Quit");

printf("\n\t\t Please enter your selection:");
Choice = getche();

switch (Choice)
{
case'1': void BinToDec(); break;
case'2': void DecToBin();break;
case'3': void OctToDec();break;
case'4': void DecToOct();break;
case'5': void HexToDec();break;
case'6': void DecToHex();break;
case'7': break;
default: printf("\n\t Selection not available");
_sleep(2000);

}

}

while (Choice != 7);
printf("\n\t End of programme");
printf("\n\t");
system ("pause");

}

[Peter87]

You have not declared defined BinToDec() anywhere

[Wisely Done]

You never defined the function BinToDec(). Forward declaration of this function won't be enough, this will cause an error at the link stage.