Compilare: main.cpp: In member function 'InParser& InParser::operator>>(char*)': main.cpp:39:27: warning: suggest parentheses around assignment used as truth value [-Wparentheses] while(c = read_ch()) { ^ main.cpp: In function 'bool contains(int)': main.cpp:274:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int i = 1; i <= n; ++i) ^~~ main.cpp:276:2: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' return calcul[repr]; ^~~~~~ main.cpp: In member function 'char InParser::read_ch()': main.cpp:21:38: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, 4096, fin); ^