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  1. #include<stdio.h>
  2.  
  3. #define DP(xxx) debug_print(__LINE__,(xxx))
  4. char sss[1111];
  5. void debug_print(int ln, char *s)
  6. {
  7.     printf("\n%d行目：%s", ln, s);
  8.     getchar();
  9. }
  10.  
  11. int main(void)
  12. {
  13.     sss[0]=0;DP(sss);
  14.     int a = 10;
  15.     sprintf(sss, "a = %d", a);DP(sss);
  16.     int b = 20;
  17.     sprintf(sss, "b = %d", b);DP(sss);
  18.     int c;
  19.     sprintf(sss, "c = %d", c);DP(sss);
  20.     c = a + b;
  21.     sprintf(sss, "c = %d", c);DP(sss);
  22.     printf("c = %d\n", c);
  23.     sss[0]=0;DP(sss);
  24.     return 0;
  25.     sss[0]=0;DP(sss);
  26. }
  27.  
Success #stdin #stdout 0s 1792KB
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13行目：
15行目：a = 10
17行目：b = 20
19行目：c = 0
21行目：c = 30c = 30

23行目：
https://ideone.com/Vwje10
language:
C (gcc 8.3)
created:
11 years ago
visibility:
secret

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