Compilare: user.cpp:6:39: warning: always_inline function might not be inlinable [-Wattributes] __attribute__((always_inline)) size_t get_number() ^~~~~~~~~~ user.cpp: In function ‘int main()’: user.cpp:22:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("elmaj.in", "r", stdin); ^ user.cpp:23:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("elmaj.out", "w", stdout); ^ user.cpp:25:42: warning: ignoring return value of ‘ssize_t read(int, void*, size_t)’, declared with attribute warn_unused_result [-Wunused-result] read(STDIN_FILENO, inBuffer, 6000000); ^ user.cpp:33:9: warning: ‘candidate’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(x == candidate) ^~ In file included from /usr/include/unistd.h:1151:0, from user.cpp:2: In function ‘ssize_t read(int, void*, size_t)’, inlined from ‘int main()’ at user.cpp:25:42: /usr/include/bits/unistd.h:42:63: warning: call to ‘__read_chk_warn’ declared with attribute warning: read called with bigger length than size of the destination buffer return __read_chk_warn (__fd, __buf, __nbytes, __bos0 (__buf)); ^