View Compilation Error

0_0_37288344_12077.cpp: In function 'void strrev(char*)':
0_0_37288344_12077.cpp:5:22: error: ambiguating new declaration of 'void strrev(char*)'
 void strrev(char* str) {                                                                                                                                                                                       
                      ^
In file included from 0_0_37288344_12077.cpp:2:0:
GCC4.9.2/x86_64-w64-mingw32/include/string.h:113:17: note: old declaration 'char* strrev(char*)'
   char *__cdecl strrev(char *_Str) __MINGW_ATTRIB_DEPRECATED_MSVC2005;
                 ^