Question

For example:

void main(){
foo1();

} 

fooTarget();
foo1(foo2(););
foo2(foo3(););
foo3(foo4(););
foo4(foo5(););
foo5(
foo6();
fooTarget(); //Identifier not found
);
foo6(
fooTarget(); //It Works!
);

what is it?
if I paste code from fooTarget() to foo5() it works too

A reduced testcase from actual code:

#include <cstring>

int main() {
    char word[] = "hey";
    int wordSize = getWordLenght(word); // error: getWordLenght not declared
}

int getWordLenght(char *word){
    return strlen(word);
}

Answer 1

In the code you posted in the comments you’re using a function that hasn’t been declared yet. It’s declared later, but C++ doesn’t look at later declarations to resolve functions.

_{Also, the ‘th’ digraph is spelled ‘th’, not ‘ht’}