domiyanyue · April 23, 2020 18:33
diff --git a/compile_warning.txt b/compile_warning.txt
 cpp_tutorial# g++ warning_example.cpp -Wall -o a
 warning_example.cpp: In function ‘int main()’:
 warning_example.cpp:2:9: warning: unused variable ‘a’ [-Wunused-variable]
     int a = 1;
         ^
	cpp_tutorial# g++ warning_example.cpp -Wall -o a
	warning_example.cpp: In function ‘int main()’:
	warning_example.cpp:2:9: warning: unused variable ‘a’ [-Wunused-variable]
	int a = 1;
	^