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| author | vlefevre <vlefevre@280ebfd0-de03-0410-8827-d642c229c3f4> | 2014-06-17 09:09:01 +0000 |
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| committer | vlefevre <vlefevre@280ebfd0-de03-0410-8827-d642c229c3f4> | 2014-06-17 09:09:01 +0000 |
| commit | c5f9dec17f19d7168fd2a9b5955612ad181276b5 (patch) | |
| tree | 0b57907b06b4beca6082156df817c58ae6c50df0 /doc | |
| parent | 7ff33ca83490b36ebe8d6f026c96c2d84a998fa0 (diff) | |
| download | mpfr-c5f9dec17f19d7168fd2a9b5955612ad181276b5.tar.gz | |
[doc/README.dev] Updated note about ternary values (macros).
git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/trunk@9068 280ebfd0-de03-0410-8827-d642c229c3f4
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/README.dev | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/doc/README.dev b/doc/README.dev index 03f603275..05fd8d056 100644 --- a/doc/README.dev +++ b/doc/README.dev @@ -969,6 +969,11 @@ and the exact behavior may change in the future. So, it is not correct to multiply ternary values returned by arbitrary functions as this may overflow. +To work with ternary values, mpfr-impl.h provides the following macros: + +#define SIGN(I) ((I) < 0 ? -1 : (I) > 0) +#define SAME_SIGN(I1,I2) (SIGN (I1) == SIGN (I2)) + =========================================================================== Because of a bug in the Mac OS X 10.5 linker, avoid tentative definitions |