C++ convert char to const char*

Question

Basically i just want to loop through a string of characters pull each one out and each one has to be of type const char* so i can pass it to a function. heres a example. Th

Answer 1

I'm guessing that the func call is expecting a C-string as it's input. In which case you can do the following:

string theString = "abc123";
char tempCString[2];
string result;

tempCString[1] = '\0';

for( string::iterator it = theString.begin();
     it != theString.end(); ++it )
{
   tempCString[0] = *it;
   result = func( tempCString );
}

This will produce a small C-string (null terminated array of characters) which will be of length 1 for each iteration.

The for loop can be done with an index (as you wrote it) or with the iterators (as I wrote it) and it will have the same result; I prefer the iterator just for consistency with the rest of the STL.

Another problem here to note (although these may just be a result of generalizing the code) is that the result will be overwritten on each iteration.