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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	int i=10;
  5. 	printf("iの中身:%d iのアドレス:%p←！！\n", i, &i);
  6. 	int *p=NULL;
  7. 	printf("代入前〜\npの中身:%p(※未定義) pのアドレス:%p\n", p, &p);
  8. 	p=&i;
  9. 	printf("代入後〜\npの中身:%p←！！ pのアドレス:%p\npが参照する値:%d\n", p, &p, *p);
  10. 	return 0;
  11. }
Success #stdin #stdout 0s 2112KB
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stdin
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Standard input is empty
stdout
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iの中身:10 iのアドレス:0xbfe0cdc8←！！
代入前〜
pの中身:(nil)(※未定義) pのアドレス:0xbfe0cdcc
代入後〜
pの中身:0xbfe0cdc8←！！ pのアドレス:0xbfe0cdcc
pが参照する値:10
https://ideone.com/Y1vNE0
language:
C (gcc 8.3)
created:
9 years ago
visibility:
secret

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