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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <string.h>
  4.  
  5.  
  6. struct data{ 
  7.    int data_id; // irgendeine Variable
  8.    int a_size;
  9.    char vals[]; // FAM
  10. }; 
  11.  
  12. struct data *createData(struct data *s, int id, int a_size, float a[]) { 
  13.     s = malloc( sizeof(*s) + sizeof(float) * a_size); 
  14.     s->data_id = id;
  15.     s->a_size = a_size;
  16.     memcpy(s->vals, a, sizeof(float) * a_size); 
  17.     return s; 
  18. } 
  19.  
  20. void printData(struct data *s){ 
  21.     printf("Data_id : %d\n", s->data_id);
  22.     int i;
  23.     for ( i=0 ; i<s->a_size ; i++){
  24.     	printf("%f, ",s->vals[i]);
  25.     }
  26.     printf("\n");
  27. } 
  28.  
  29.  
  30. int main(void) {
  31. 	float A[] = {1.0, 7.5, 9.3};
  32. 	float B[] = {2.0, 2.8, 3.0, 5.5};
  33. 	struct data *s1 = createData(s1, 523, 3, A);
  34. 	struct data *s2 = createData(s2, 206, 4, B);
  35. 	printData(s1);
  36. 	printData(s2);
  37. 	return 0;
  38. }
  39.  
Success #stdin #stdout 0s 5008KB
comments (?)
stdin 
Standard input is empty
stdout 
Data_id : 523
0.000000, 0.000000, 0.000000, 
Data_id : 206
0.000000, 0.000000, 0.000000, 0.000000,
https://ideone.com/rsxhaP
language:
C (gcc 8.3)
created:
3 years ago
visibility:
public

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