Hi I encountered this when writing some c++ program that uses execvp to start another process.
Basically (see the attached example program) int execvp(const char *path, char * const *argv); the prototype of execvp() doesn't like constant char arrays for the second parameter, but that's what you get when you use the c_str() function on strings. Googling for this problem didn't help beside the point that it, depending on the implementation, is save on some architectures to "cast away" the const because the parameters are copied by execvp and therefore the new process cannot change them in its parent. Is it save with g++ on cygwin to to this? execvp(nargv[0], const_cast<char * const *>(nargv) ) --------------------^^^^^^^^^^^^^^^^^^^^^^^^^^ (Yes, I know that I can just copy the const char* into new char* arrays but this includes extra memory and overhead and the parameter lists of the application where the code comes from can get rather long and the program is called very often so that I would like to avoid that.) I would appreciate some insight here. Volker -- PGP/GPG key (ID: 0x9F8A785D) available from wwwkeys.de.pgp.net key-fingerprint 550D F17E B082 A3E9 F913 9E53 3D35 C9BA 9F8A 785D
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