diff options
| author | Josh Blum <josh@joshknows.com> | 2013-09-06 14:41:35 -0700 |
|---|---|---|
| committer | Josh Blum <josh@joshknows.com> | 2013-09-06 14:41:35 -0700 |
| commit | 0184989a5f716d99435409279ce5cd1f78d98544 (patch) | |
| tree | 4caa18a9e0f2d46216cbed9b7684f1498594d1d9 /host/lib | |
| parent | e8dfc4638222689c875f3c399c1dec667dca082d (diff) | |
| download | uhd-0184989a5f716d99435409279ce5cd1f78d98544.tar.gz uhd-0184989a5f716d99435409279ce5cd1f78d98544.tar.bz2 uhd-0184989a5f716d99435409279ce5cd1f78d98544.zip | |
b200: use a union to perform double pack/unpack
Diffstat (limited to 'host/lib')
| -rw-r--r-- | host/lib/usrp/common/ad9361_transaction.h | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/host/lib/usrp/common/ad9361_transaction.h b/host/lib/usrp/common/ad9361_transaction.h index 7b41b811f..7cbad5908 100644 --- a/host/lib/usrp/common/ad9361_transaction.h +++ b/host/lib/usrp/common/ad9361_transaction.h @@ -41,20 +41,26 @@ extern "C" { #define AD9361_ACTION_SET_CLOCK_RATE 9 #define AD9361_ACTION_SET_ACTIVE_CHAINS 10 +typedef union +{ + double d; + uint32_t x[2]; +} ad9361_double_union_t; + static inline void ad9361_double_pack(const double input, uint32_t output[2]) { - const uint32_t *p = (const uint32_t *)&input; - output[0] = p[0]; - output[1] = p[1]; + ad9361_double_union_t p = {}; + p.d = input; + output[0] = p.x[0]; + output[1] = p.x[1]; } static inline double ad9361_double_unpack(const uint32_t input[2]) { - double output = 0.0; - uint32_t *p = (uint32_t *)&output; - p[0] = input[0]; - p[1] = input[1]; - return output; + ad9361_double_union_t p = {}; + p.x[0] = input[0]; + p.x[1] = input[1]; + return p.d; } typedef struct |