I’m not clear with this function passing & accepting the function. What’s that bool (&cmp) etc? I’ve watched this video several times, it’s still confusing for me. Please help me out. Thanks
Comparators & Function Passing
hello @gambhirrahul0
we can pass function to another function , like we pass a variable to some function.
for example->
void f(int x){
}
int y=2;
f(y)
here we are passing variable y to function f. right?
and the function definition i.e
void f(int x){
}
is telling us that this function recieve a variable of int type and it will be known as x inside this function.
in similar way if we can pass a function to other function
void y(){
}
let say this is a function and we want to pass this function to another function f.
then f definition will look like
void f ( void y() ){ // this deifiniton is telling that function f will recieve
a function
}
f(y) // calling function f by passing function y as param.
now if we want to pass function by reference then we need to use & sign before function.
void f ( void (&y)() ){ // this deifiniton is telling that function f will recieve
a function
}
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