How do I check if a const char* begins with a specific string? (C++)

Question

I have a const char* variable and I want to check if it begins with a certain string.

For example:

string sentence = "Hello, world!";
string other = "Hello";
const char* c = sentence.c_str();

if(/*"c" begins with "other"*/)
{
    //Do something
}

How can I do this using the if statement?

Answer 1

To check whether a C string begins with a certain substring, you could use strncmp().

For C++ strings, there is a std::string::compare() overload that accepts offsets and lengths.