123.cpp:10: warning: non-local variable '<anonymous struct> info [10005]' uses anonymous type 123.cpp: In function 'int main()': 123.cpp:29: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x 123.cpp:29: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x 123.cpp:25: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result 123.cpp:26: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result In file included from /usr/include/stdio.h:910, from /usr/include/c++/4.4/cstdio:45, from 123.cpp:1: In function 'char* fgets(char*, int, FILE*)', inlined from 'int main()' at 123.cpp:26: /usr/include/bits/stdio2.h:253: warning: call to '__fgets_chk_warn' declared with attribute warning: fgets called with bigger size than length of destination buffer