amestec.cpp: In function 'int main()': amestec.cpp:43: warning: right-hand operand of comma has no effect amestec.cpp:45: warning: right-hand operand of comma has no effect amestec.cpp:47: warning: right-hand operand of comma has no effect amestec.cpp:49: warning: right-hand operand of comma has no effect amestec.cpp:50: warning: right-hand operand of comma has no effect amestec.cpp:51: warning: right-hand operand of comma has no effect amestec.cpp:22: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result amestec.cpp:26: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result amestec.cpp:24: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result amestec.cpp:30: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result