diff options
| author | cagney <cagney@138bc75d-0d04-0410-961f-82ee72b054a4> | 2003-09-15 21:28:49 +0000 |
|---|---|---|
| committer | cagney <cagney@138bc75d-0d04-0410-961f-82ee72b054a4> | 2003-09-15 21:28:49 +0000 |
| commit | 4b1311e7e5814038e85ec1979590627ed0637fb2 (patch) | |
| tree | b72bb9e7cd2a18c3d9482e542b91a97a7d7a2534 /include/floatformat.h | |
| parent | f41d3a7ec8da4cd99406b6b5f0ae4bb1ce697e4d (diff) | |
| download | gcc-4b1311e7e5814038e85ec1979590627ed0637fb2.tar.gz | |
2003-09-15 Andrew Cagney <cagney@redhat.com>
* floatformat.h (struct floatformat): Make "exp_bias" signed.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@71407 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'include/floatformat.h')
| -rw-r--r-- | include/floatformat.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/include/floatformat.h b/include/floatformat.h index feb3260117c..1d08fd6183f 100644 --- a/include/floatformat.h +++ b/include/floatformat.h @@ -61,8 +61,12 @@ struct floatformat unsigned int exp_start; unsigned int exp_len; - /* Amount added to "true" exponent. 0x3fff for many IEEE extendeds. */ - unsigned int exp_bias; + /* Bias added to a "true" exponent to form the biased exponent. It + is intentionally signed as, otherwize, -exp_bias can turn into a + very large number (e.g., given the exp_bias of 0x3fff and a 64 + bit long, the equation (long)(1 - exp_bias) evaluates to + 4294950914) instead of -16382). */ + int exp_bias; /* Exponent value which indicates NaN. This is the actual value stored in the float, not adjusted by the exp_bias. This usually consists of all one bits. */ |