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pass by reference



Kære c-sprog,

hvordan får jeg flg. eksempel til at tildele 'value' i main værdien
beregnet i calculate_value?

float calculate_value(float value){
  value= 2*5.4;
  return value;
}

int main(int argc, char **argv){
  float value;

  calculate_value(value);

  printf("value= %f\n", value); //skriver 0.0 i stedet for 10.8
}

med venlig hilsen
Marie Louise





 
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