xy.cpp: In function 'int main()': xy.cpp:49: error: name lookup of 'i' changed for ISO 'for' scoping xy.cpp:49: note: (if you use '-fpermissive' G++ will accept your code) xy.cpp:51: error: incompatible types in assignment of 'int' to 'int [105][105]' xy.cpp:55: error: ISO C++ forbids comparison between pointer and integer xy.cpp:58: warning: statement has no effect xy.cpp:49: warning: unused variable 'j'