Compilare: user.cpp: In function ‘void change(int, int)’: user.cpp:167:20: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] change(lft, lft+rt>>1); ~~~^~~ user.cpp:168:16: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] change((lft+rt>>1)+1, rt); ~~~^~~ user.cpp: In function ‘void mult(int*, int*, int&, int)’: user.cpp:211:24: warning: narrowing conversion of ‘*(poly1 + ((sizetype)(((unsigned int)i) * 4u)))’ from ‘int’ to ‘ld {aka long double}’ inside { } [-Wnarrowing] a[i] = {poly1[i], 0.0}; ~~~~~~~^ user.cpp:212:24: warning: narrowing conversion of ‘*(poly2 + ((sizetype)(((unsigned int)i) * 4u)))’ from ‘int’ to ‘ld {aka long double}’ inside { } [-Wnarrowing] b[i] = {poly2[i], 0.0}; ~~~~~~~^ user.cpp: In member function ‘char InParser::read_ch()’: user.cpp:24:38: 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); ^