Adding message to assert

Question

Hallo!

I\'m looking for a way to add custom messages to assert statements. I found this questions Add custom messages in assert? but the message is static there. I w

Answer 1

For the sake of completeness, I published a drop-in 2 files assert macro implementation in C++:

#include 

int main()
{
  float min = 0.0f;
  float max = 1.0f;
  float v = 2.0f;
  PEMPEK_ASSERT(v > min && v < max,
                "invalid value: %f, must be between %f and %f", v, min, max);

  return 0;
}

Will prompt you with:

Assertion 'v > min && v < max' failed (DEBUG)
  in file e.cpp, line 8
  function: int main()
  with message: invalid value: 2.000000, must be between 0.000000 and 1.000000

Press (I)gnore / Ignore (F)orever / Ignore (A)ll / (D)ebug / A(b)ort:

Where

• (I)gnore: ignore the current assertion
• Ignore (F)orever: remember the file and line where the assertion fired and ignore it for the remaining execution of the program
• Ignore (A)ll: ignore all remaining assertions (all files and lines)
• (D)ebug: break into the debugger if attached, otherwise abort() (on Windows, the system will prompt the user to attach a debugger)
• A(b)ort: call abort() immediately

You can find out more about it there:

• blog post
• GitHub project

Hope that helps.