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  1. #include <cstdio>
  2. #include <vector>
  3. #include <iostream>
  4. #include <iterator>
  5.  
  6. struct Logger
  7. {
  8.     const char* file;
  9.     int lineno;
  10.     const char* code;
  11.  
  12.     ~Logger()
  13.     {
  14.         printf("logging error from line #%d when calling %s\n", lineno, code);
  15.     }
  16. };
  17.  
  18. #define APIERROR(...) (Logger{__FILE__, __LINE__, #__VA_ARGS__}, (__VA_ARGS__))
  19.  
  20. int main()
  21. {
  22.     std::vector<int> v;
  23.     APIERROR(v.reserve(7));
  24.     for (int i = 0; APIERROR(i*i) < 20; APIERROR(++ i))
  25.     {
  26.         APIERROR(v.push_back(i));
  27.     }
  28.  
  29.     APIERROR(std::copy(v.begin(), v.end(), std::ostream_iterator<int>(std::cout, "\n")));
  30.     return 0;
  31. }
Success #stdin #stdout 0s 2960KB
comments (?)
stdin
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Standard input is empty
stdout
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logging error from line #23 when calling v.reserve(7)
logging error from line #24 when calling i*i
logging error from line #26 when calling v.push_back(i)
logging error from line #24 when calling ++ i
logging error from line #24 when calling i*i
logging error from line #26 when calling v.push_back(i)
logging error from line #24 when calling ++ i
logging error from line #24 when calling i*i
logging error from line #26 when calling v.push_back(i)
logging error from line #24 when calling ++ i
logging error from line #24 when calling i*i
logging error from line #26 when calling v.push_back(i)
logging error from line #24 when calling ++ i
logging error from line #24 when calling i*i
logging error from line #26 when calling v.push_back(i)
logging error from line #24 when calling ++ i
logging error from line #24 when calling i*i
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logging error from line #29 when calling std::copy(v.begin(), v.end(), std::ostream_iterator<int>(std::cout, "\n"))
https://ideone.com/CiLGR
language:
C++14 (gcc 8.3)
created:
12 years ago
visibility:
public

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