C++ Interview Questions and Answers

 

Explain which of the following declarations will compile and what will be constant ...

Explain which of the following declarations will compile and what will be constant
- a pointer or the value pointed at: * const char *



* char const *



* char * const







Note: Ask the candidate whether the first declaration is pointing to a string or
a single character. Both explanations are correct, but if he says that it’s a
single character pointer, ask why a whole string is initialized as char* in C++.
If he says this is a string declaration, ask him to declare a pointer to a single
character. Competent candidates should not have problems pointing out why const
char* can be both a character and a string declaration, incompetent ones will come
up with invalid reasons.

Posted by:Richards