Compilare: user.cpp: In member function ‘bool myHash::check(int)’: user.cpp:22:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while ( i < v[h].size() && v[h][i] != val ) ^ user.cpp:25:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] return ( i < v[h].size() ); ^ user.cpp: In member function ‘bool myHash::pop(int)’: user.cpp:34:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while ( i < v[h].size() && v[h][i] != val ) ^ user.cpp:37:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ( i < v[h].size() ) ^ user.cpp:40:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] return ( i < v[h].size() ); ^ user.cpp: In member function ‘int buffer::getnr()’: user.cpp:76:30: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] while ( c != EOF && c < '0' || '9' < c ) ^ user.cpp: In function ‘int main()’: user.cpp:115:30: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] buffer fin( "hashuri.in" ); ^ user.cpp: In member function ‘void buffer::refill()’: user.cpp:60:41: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread( text, 1, size, file ); ^