Module: ppl/ppl Branch: master Commit: 38a6756260a2c339f5aaddd012532194af1709e5 URL: http://www.cs.unipr.it/git/gitweb.cgi?p=ppl/ppl.git;a=commit;h=38a6756260a2c... Author: Roberto Bagnara <bagnara@cs.unipr.it> Date: Thu Jun 21 17:38:55 2012 +0200 Documentation of restore_pre_PPL_rounding() extended. --- src/Init.defs.hh | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/src/Init.defs.hh b/src/Init.defs.hh index f31121c..a6dfc73 100644 --- a/src/Init.defs.hh +++ b/src/Init.defs.hh @@ -42,6 +42,11 @@ void set_rounding_for_PPL(); /*! \brief Sets the FPU rounding mode as it was before initialization of the PPL. + This is important if the application uses floating-point computations + outside the PPL. It is crucial when the application uses functions + from a mathematical library that is not guaranteed to work correctly + under all rounding modes. + After calling this function it is absolutely necessary to call set_rounding_for_PPL() before using any PPL abstractions based on floating point numbers.