execv() and const-ness

Question

I often use the execv() function in C++, but if some of the arguments are in C++ strings, it annoys me that I cannot do this:

const char *args[4]         


        

Answer 1

const is a C++ thing - execv has taken char * arguments since before C++ existed.

You can use const_cast instead of copying, because execv doesn't actually modify its arguments. You might consider writing a wrapper to save yourself the typing.

Actually, a bigger problem with your code is that you declared an array of characters instead of an array of strings.

Try: const char* args[4];