robot4.cpp: In function 'int main()': robot4.cpp:35: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x robot4.cpp:35: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x robot4.cpp:46: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x robot4.cpp:46: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x robot4.cpp: In function 'bool cmp2(str, str)': robot4.cpp:29: warning: control reaches end of non-void function robot4.cpp: In function 'bool cmp(str, str)': robot4.cpp:22: warning: control reaches end of non-void function