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

13 votes367 views2 answers
Python driver.get
C
-1 vote386 views1 answer
C find last element in array
C
0 vote365 views1 answer
Cannot get / react router dom
C
4 votes372 views1 answer
Prime check in c
C
0 vote410 views1 answer
Writing tests for API requests
C
1 vote376 views3 answers
Prime number in c
C
0 vote375 views1 answer
Multi Select with icons htm;
C
1 vote395 views2 answers
Print float in c
C
0 vote348 views1 answer
Printf("%d", 10 ? 0 ? 5:1:1:12) what will print
C
1 vote468 views6 answers
C to c++ converter online
C