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| author | Max Kellermann <max@duempel.org> | 2013-12-01 19:29:55 +0100 |
|---|---|---|
| committer | Max Kellermann <max@duempel.org> | 2013-12-01 19:32:48 +0100 |
| commit | 28ad79c97ab273d5077847cc81ca969c63474219 (patch) | |
| tree | 292d6ab548cdda2936a4e3e7636796ed2c0c3e47 /src | |
| parent | 7661ad6653eb69b1237dc815f1d032afd644e9c3 (diff) | |
| download | mpd-28ad79c97ab273d5077847cc81ca969c63474219.tar.gz mpd-28ad79c97ab273d5077847cc81ca969c63474219.tar.xz mpd-28ad79c97ab273d5077847cc81ca969c63474219.zip | |
pcm/Traits: add typedef long_type
Diffstat (limited to 'src')
| -rw-r--r-- | src/pcm/Traits.hxx | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/pcm/Traits.hxx b/src/pcm/Traits.hxx index b102b41ab..58a61c9c5 100644 --- a/src/pcm/Traits.hxx +++ b/src/pcm/Traits.hxx @@ -51,6 +51,13 @@ struct SampleTraits<SampleFormat::S8> { typedef const value_type *const_pointer_type; /** + * A "long" type that is large and accurate enough for + * arithmetic without risking an (integer) overflow or + * (floating point) precision loss. + */ + typedef int long_type; + + /** * The size of one sample in bytes. */ static constexpr size_t SAMPLE_SIZE = sizeof(value_type); @@ -68,6 +75,8 @@ struct SampleTraits<SampleFormat::S16> { typedef value_type *pointer_type; typedef const value_type *const_pointer_type; + typedef int long_type; + static constexpr size_t SAMPLE_SIZE = sizeof(value_type); static constexpr unsigned BITS = sizeof(value_type) * 8; }; @@ -78,6 +87,8 @@ struct SampleTraits<SampleFormat::S32> { typedef value_type *pointer_type; typedef const value_type *const_pointer_type; + typedef int64_t long_type; + static constexpr size_t SAMPLE_SIZE = sizeof(value_type); static constexpr unsigned BITS = sizeof(value_type) * 8; }; @@ -88,6 +99,8 @@ struct SampleTraits<SampleFormat::S24_P32> { typedef value_type *pointer_type; typedef const value_type *const_pointer_type; + typedef int long_type; + static constexpr size_t SAMPLE_SIZE = sizeof(value_type); static constexpr unsigned BITS = 24; }; |