deprtxt.sh

>>> g++ -c -std=c++11 ./src/deprecated-attribute.cpp
./src/deprecated-attribute.cpp:3:10: warning: ‘deprecated’ attribute directive ignored [-Wattributes]
 void foo() {}
          ^
>>> echo $?
0
>>> g++ -c  ./src/deprecated-attribute.cpp
./src/deprecated-attribute.cpp:2:1: error: expected unqualified-id before ‘[’ token
 [[deprecated("will be removed in future")]]
 ^
./src/deprecated-attribute.cpp: In function ‘int main()’:
./src/deprecated-attribute.cpp:6:9: error: ‘foo’ was not declared in this scope
     foo();
         ^
>>> echo $?
1