Compilare: user.cpp: In function ‘void nrtext(char*, int, int, int)’: user.cpp:51:20: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] else if(l==4) ^ user.cpp:44:15: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(n%10) ^ user.cpp:64:20: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] else if(l==4) ^ In file included from /usr/include/string.h:642:0, from /usr/include/c++/4.8/cstring:42, from user.cpp:3: In function ‘char* strcpy(char*, const char*)’, inlined from ‘void assign()’ at user.cpp:30:58: /usr/include/i386-linux-gnu/bits/string3.h:105:63: warning: call to char* __builtin___strcpy_chk(char*, const char*, unsigned int) will always overflow destination buffer [enabled by default] return __builtin___strcpy_chk (__dest, __src, __bos (__dest)); ^