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| author | Josh Blum | 2011-10-08 13:43:32 -0700 |
|---|---|---|
| committer | Josh Blum | 2011-10-08 13:43:32 -0700 |
| commit | 63b87bf4e6e9a2f1112c17c57796b69b3b8a2b3e (patch) | |
| tree | 9ee830618e5d8253af8e8cec72dcec8925092dda /gnuradio-core/src/lib/general | |
| parent | 369834c83e26ac090dbac48c8c8e885ba210665a (diff) | |
| download | gnuradio-63b87bf4e6e9a2f1112c17c57796b69b3b8a2b3e.tar.gz gnuradio-63b87bf4e6e9a2f1112c17c57796b69b3b8a2b3e.tar.bz2 gnuradio-63b87bf4e6e9a2f1112c17c57796b69b3b8a2b3e.zip | |
gr: minor tweaks for MSVC compatibility
Diffstat (limited to 'gnuradio-core/src/lib/general')
| -rw-r--r-- | gnuradio-core/src/lib/general/gr_cpm.cc | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/gnuradio-core/src/lib/general/gr_cpm.cc b/gnuradio-core/src/lib/general/gr_cpm.cc index a00526b52..94a428c58 100644 --- a/gnuradio-core/src/lib/general/gr_cpm.cc +++ b/gnuradio-core/src/lib/general/gr_cpm.cc @@ -28,6 +28,10 @@ #include <cfloat> #include <gr_cpm.h> +//gives us erf on compilers without it +#include <boost/math/special_functions/erf.hpp> +namespace bm = boost::math; + #ifndef M_TWOPI # define M_TWOPI (2*M_PI) #endif @@ -178,8 +182,8 @@ generate_cpm_gaussian_taps(unsigned samples_per_sym, unsigned L, double bt) double alpha = 5.336446256636997 * bt; for (unsigned i = 0; i < samples_per_sym * L; i++) { double k = i - Ls/2; // Causal to acausal - taps_d[i] = (erf(alpha * (k / samples_per_sym + 0.5)) - - erf(alpha * (k / samples_per_sym - 0.5))) + taps_d[i] = (bm::erf(alpha * (k / samples_per_sym + 0.5)) - + bm::erf(alpha * (k / samples_per_sym - 0.5))) * 0.5 / samples_per_sym; taps[i] = (float) taps_d[i]; } |