Callback c++ c

//Define a type for the callback signature,
//it is not necessary, but makes life easier

//Function pointer called CallbackType that takes a float
//and returns an int
typedef int (*CallbackType)(float);  


void DoWork(CallbackType callback)
{
  float variable = 0.0f;

  //Do calculations

  //Call the callback with the variable, and retrieve the
  //result
  int result = callback(variable);

  //Do something with the result
}

int SomeCallback(float variable)
{
  int result;

  //Interpret variable

  return result;
}

int main(int argc, char ** argv)
{
  //Pass in SomeCallback to the DoWork
  DoWork(&SomeCallback);
}

Source: stackoverflow.com

Similar codes

1 vote170 views1 answer
Lerp function c
C
0 vote146 views1 answer
Cast from float to long c
C
-1 vote140 views1 answer
Dict sort
C
24 votes144 views3 answers
Filing in C
C
4 votes138 views6 answers
Javascript string
C
6 votes128 views1 answer
Csrf_exempt
C
1 vote128 views1 answer
Thread in c
C
0 vote128 views1 answer
Mariadb utf8mb4
C
0 vote133 views1 answer
C long to string
C
2 votes137 views1 answer
Malloc is undefined
C