cout is not a member of std

Question

I m practicing using mulitple files and header files etc  So I have this project which takes two numbers and then adds them  Pretty simple   Here are my files   main cpp   include  lt iostream gt   include  add h   int main         int x   readNumber        int y   readNumber         writeAnswer x   y        return 0       io cpp  int readNumber         int x       std  cout  lt  lt   Number         std  cin  gt  gt  x       return x     void writeAnswer int x        std  cout  lt  lt   Answer         std  cout  lt  lt  x      add h   ifndef ADD H INCLUDED  define ADD H INCLUDED  int readNumber    void writeAnswer int x     endif     ifndef ADD H INCLUDED   The error is showing up in io cpp  The exact errors are     Does anyone have any idea why this may be happening  Thanks   EDIT  I made a small project yesterday with the same amount of files  2  cpp and 1 h  and I didn t include the iostream header in the other  cpp and it still compiled and ran fine

User · Answer

I had a similar issue and it turned out that i had to add an extra entry in cmake to include the files   Since i was also using the zmq library I had to add this to the included libraries as well

User · Answer

Also remember that it must be    include  stdafx h   include  lt iostream gt    and not the other way around   include  lt iostream gt   include  stdafx h

User · Answer

add  include  lt iostream gt  to the start of io cpp too

[c++] cout is not a member of std

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