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| author | vlefevre <vlefevre@280ebfd0-de03-0410-8827-d642c229c3f4> | 2015-07-16 12:32:33 +0000 |
|---|---|---|
| committer | vlefevre <vlefevre@280ebfd0-de03-0410-8827-d642c229c3f4> | 2015-07-16 12:32:33 +0000 |
| commit | 2c5bb5564fb00fe7f48c0c1bfaece82649b3b96a (patch) | |
| tree | 394cf29887dddd717b8d530d0be2b5c1f8f826de | |
| parent | 2deb427ba3d39c84fba3281c627a6cbcf4a7b706 (diff) | |
| download | mpfr-2c5bb5564fb00fe7f48c0c1bfaece82649b3b96a.tar.gz | |
[src/mpfr.h] Added a comment about the drawback of the mpfr_get_exp()
macro, defined in addition to the function.
git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/trunk@9618 280ebfd0-de03-0410-8827-d642c229c3f4
| -rw-r--r-- | src/mpfr.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/mpfr.h b/src/mpfr.h index b12300988..7bb8f1307 100644 --- a/src/mpfr.h +++ b/src/mpfr.h @@ -852,8 +852,12 @@ __MPFR_DECLSPEC int mpfr_custom_get_kind _MPFR_PROTO ((mpfr_srcptr)); #define MPFR_VALUE_OF(x) (0 ? (x) : (x)) #define mpfr_get_prec(_x) MPFR_VALUE_OF((_x)->_mpfr_prec) #define mpfr_get_exp(_x) MPFR_VALUE_OF((_x)->_mpfr_exp) -/* Note: if need be, the MPFR_VALUE_OF can be used for other expressions - (of any type). Thanks to Wojtek Lerch and Tim Rentsch for the idea. */ +/* Note 1: If need be, the MPFR_VALUE_OF can be used for other expressions + (of any type). Thanks to Wojtek Lerch and Tim Rentsch for the idea. + Note 2: Defining mpfr_get_exp() as a macro has the effect to disable + the check that the argument is a pure FP number (done in the function); + this increases the risk of undetected error and makes debugging more + complex. Is it really worth in practice? (Potential FIXME) */ #define mpfr_round(a,b) mpfr_rint((a), (b), MPFR_RNDNA) #define mpfr_trunc(a,b) mpfr_rint((a), (b), MPFR_RNDZ) |