Thread: Errors I don't understand (overloading)

I get:

Code:

Warning W8066 d.cpp 11: Unreachable code in function main()
Warning W8004 d.cpp 10: 'exp' is assigned a value that is never used in function
 main()
Error E2335 d.cpp 15: Overloaded 'exp' ambiguous in this context in function levup()
Error E2335 d.cpp 16: Overloaded 'exp' ambiguous in this context in function levup()

for:

Code:

#include <iostream.h>
#include <conio.h>
#include <stdlib.h>
#include <string>
void levup();
int level=1;
int main()
{
int exp=99;
for(;;){ exp++;cout<<"Your level is: "<<level; levup();}
getch();
return 0;
}
void levup(){
if (exp==100){
exp=0;
level++;
}
return;
}

Could someone tell me what I'm doing wrong?
P.S.:This is a part of my new RPG.

I still get errors for:

Code:

#include <iostream.h>
#include <conio.h>
#include <stdlib.h>
#include <string>
void levup();
int exp=0;
int level=1;
int main()
{
while(level<100){ 
exp++;
cout<<"Your level is: "<<level; 
levup();
getch();
}
return 0;
}
void levup(){
if (exp==100){
exp=0;
level++;
}
}

And the errors:

Code:

Error E2356 d.cpp 6: Type mismatch in redeclaration of 'exp(double)'
Error E2063 d.cpp 6: Illegal initialization
Error E2141 d.cpp 6: Declaration syntax error
Error E2335 d.cpp 11: Overloaded 'exp' ambiguous in this context in function mai
n()
Error E2335 d.cpp 19: Overloaded 'exp' ambiguous in this context in function lev
up()
Error E2335 d.cpp 20: Overloaded 'exp' ambiguous in this context in function lev
up()

>>Type mismatch in redeclaration ...
Your name is clashing with another.