On 08/23/2009 09:32 PM, Peter van Hoof wrote:
Hi, My understanding is that in C++ two overloaded versions of strstr() should be defined: const char * strstr ( const char * str1, const char * str2 ); char * strstr ( char * str1, const char * str2 ); (http://www.cplusplus.com/reference/clibrary/cstring/strstr/ but also Stroustrup's book section 20.4.1 (special edition)) The way I read this, the following C++ code should be invalid: #include <cstring> char *backdoor(const char *a, const char *b) { return std::strstr(a, b); } since it is trying to remove the const-ness of the std:strstr() result. However, g++ accepts this. It doesn't even give a warning with g++ -ansi -Wall -W -pedantic. Most compilers I tried accept this, but it is my understanding that VS08 rejects this code. So am I reading this wrong, or is there a bug in g++?
GCC 4.4.1: In function 'char* backdoor(const char*, const char*)': error: invalid conversion from 'const char*' to 'char*' So it seems you're using an old GCC which has this bug.
