Thread: Could use some help with Geany

i'm trying super basic hello world code in c++. typed in how walk-through showed me, error every time click build button.

g++ -wall -o "untitled" "untitled.cmm" (in directory: /home/hunter)
compilation failed.
untitled.cmm: file not recognized: file format not recognized
collect2: ld returned 1 exit status

have no idea **** i'm doing

code:

#include <iostream>  using namespace std;  int main()    {     cout << "hello world!";     getchar();     return 0; }

is have typed in.

first, rename file untitled.cpp.

secondly, use of getchar() incorrect. need #include cstdio , declare first.

code:

#include <iostream>  #include <cstdio>    using namespace std;    int main()  {          char c;          cout << "hello world!";          c=getchar();          return 0;  }

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