honest.cpp: In function 'int main()': honest.cpp:16: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result honest.cpp:19: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result honest.cpp:13: warning: 'prim' may be used uninitialized in this function