CCS C Compiler Manual PCB / PCM / PCH

Overloaded Functions
Overloaded functions allow the user to have multiple functions with the same name, but they
must accept different parameters.
Here is an example of function overloading: Two functions have the same name but differ in the
types of parameters. The compiler determines which data type is being passed as a parameter
and calls the proper function.
This function finds the square root of a long integer variable.
long FindSquareRoot(long n){
}
This function finds the square root of a float variable.
float FindSquareRoot(float n){
}
FindSquareRoot is now called. If variable is of long type, it will call the first FindSquareRoot()
example. If variable is of float type, it will call the second FindSquareRoot() example.
result=FindSquareRoot(variable);
Reference Parameters
The compiler has limited support for reference parameters. This increases the readability of
code and the efficiency of some inline procedures. The following two procedures are the
same. The one with reference parameters will be implemented with greater efficiency when it is
inline.
funct_a(int*x,int*y){
/*Traditional*/
if(*x!=5)
*y=*x+3;
}
funct_a(&a,&b);
funct_b(int&x,int&y){
/*Reference params*/
if(x!=5)
y=x+3;
}
funct_b(a,b);
38