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  1. #include <stdio.h>
  2. 	void catdata(int *data1,const int *data2,int len2){
  3. 		int i;
  4. 		while(*data1!=0){
  5. 			data1++;	}//data1がdata[2]になってるよ。//
  6.  
  7. 		for(i=0;i<len2;i++){
  8. 			*(data1+i)=*(data2+i);
  9. 		}
  10.  
  11. 	}
  12.  
  13.  
  14. int main(void) {
  15. 	int data1[7],data2[5],j;
  16. 	int len2=sizeof(data2)/sizeof(data2[0]);
  17. 	data1[0]=1;
  18. 	data1[1]=2;
  19. 	data2[0]=3;
  20. 	data2[1]=4;
  21. 	data2[2]=5;
  22. 	data2[3]=6;
  23. 	data2[4]=7;
  24.  
  25. 	catdata(data1,data2,len2);
  26.  
  27. 	for(j=0;j<7;j++){
  28. 		printf("data1[%d]=%d\n",j,*(data1+j));
  29. 	}
  30.  
  31. 	return 0;
  32. }
  33.  
  34.  
Success #stdin #stdout 0.01s 5284KB
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stdin
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Standard input is empty
stdout
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data1[0]=1
data1[1]=2
data1[2]=3
data1[3]=4
data1[4]=5
data1[5]=6
data1[6]=7
https://ideone.com/vMDaSU
language:
C99 (gcc 8.3)
created:
1 day ago
visibility:
public

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