V2556. MISRA. Use of a pointer to FILE when the associated stream has already been closed.

This diagnostic rule is based on the software development guidelines developed by MISRA (Motor Industry Software Reliability Association).

This rule applies only to C.

Using a pointer to the standard type 'FILE' after the associated stream has been already closed may lead to errors because that object will be having an undefined state.

Example of non-compliant code:

FILE* f = fopen("/path/to/file.log", "w");
if (f == NULL) { .... }
fprintf(f, "....");

if (....) // something went wrong
{
  fclose(f);
  fprintf(f, "...."); // Print log information
                      // after stream has been released.
}

This diagnostic is classified as:

  • MISRA-C-22.6

Bugs Found

Checked Projects
414
Collected Errors
14 218
This website uses cookies and other technology to provide you a more personalized experience. By continuing the view of our web-pages you accept the terms of using these files. If you don't want your personal data to be processed, please, leave this site. Learn More →
Accept