You cannot check ANSI compliance

[Anthony Scian]

One facet of the proposed ANSI standard that is difficult
to verify is re-entrant functions. The proposed ANSI standard
requires that all functions have the possibility of being
re-entrant. This means that the calling convention
must be re-entrant. This applies to functions of any return types.

The various ANSI C compliance test suites cannot check for this
in a deterministic manner.

//// Anthony Scian afscian at violet.uwaterloo.ca afscian at violet.waterloo.edu ////
"I can't believe the news today, I can't close my eyes and make it go away" -U2