-I"path" include the header path
-L"path" include the dynamic path or static path
-llibname include the library name, without lib prefix.
you can specify the dynamic library in the LD_LIBRARY_PATH as well.
- -D add individual macro definition.
such as main.cpp:
int main()
{
int a=0,b=1;
int c=a+b;
#ifdef DEBUG
cout<<"result = "<<c<<endl;
#endif
return c;
}
You can generate verbose version program using
g++ main.cpp -o main -DDEBUG
