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

0 vote194 views1 answer
HOW TO ADD FORM IN BOOTSTRAp
C
0 vote214 views1 answer
C zero out array
C
19 votes205 views6 answers
Mongodb delete all documents
C
9 votes199 views9 answers
Selection sort
C
12 votes248 views5 answers
C char to int
C
0 vote138 views2 answers
Liste chainée c
C
20 votes201 views3 answers
Access the docker container files
C
0 vote265 views1 answer
How to check the word is present in given char array in c
C
8 votes232 views2 answers
How to print boolean in c
C
-2 votes156 views2 answers
Ascending lexicographic order
C