Re: Cast trap with INI entries compiling C++ extension

Gustavo Lopes wrote:

const char * and char const * are the same (just like const int and int const are the same); what's not the same is char *const.

Andrey Hristov wrote:

it's easy, whatever const is closer to is immutable const char * is a pointer to a const char, because the const is closer to the char than to the pointer. char * const is a const pointer to a char, because the const is closer to the pointer than to the char. Anyway, never used char const *, which will conflict with my explanation :) Best, Andrey

I stand corrected, char const * is the same as const char* [1], so any of them would work for the ini struct. The C++ FAQ Lite recommends reading it right to left [2], but then the leftmost const case is left undefined by the mnemonic, so it isn't valid for all cases, either. I'm also attaching a small program showing the different ways of accessing each of those and the expected warnings so that your favorite compiler can yell at you :) [1] http://www.parashift.com/c++-faq/const-correctness.html#faq-18.9 [2] http://www.parashift.com/c++-faq/const-correctness.html#faq-18.5

Attachment: [text/x-csrc] const.c