From 48f9ca90e0cbcbfe67b0e10889c60928d9be5c49 Mon Sep 17 00:00:00 2001
From: Josh Blum
Date: Mon, 17 Jan 2011 16:37:45 -0800
Subject: gr math simplification:

Replaces gr_gcd, gr_isnan, and gr_signbit one-time instances with boot math calls.
No point in wrapping these utility math functions into gnuradio when they are
1) provided by boost
2) only called once

Removes gr_math.cc, and configure checks for isnan.
---
 gr-atsc/src/lib/atsci_equalizer_lms2.cc | 5 +++--
 gr-atsc/src/lib/atsci_sssr.cc           | 3 ++-
 2 files changed, 5 insertions(+), 3 deletions(-)

(limited to 'gr-atsc/src/lib')

diff --git a/gr-atsc/src/lib/atsci_equalizer_lms2.cc b/gr-atsc/src/lib/atsci_equalizer_lms2.cc
index 345f6209f..f9fb57c7b 100644
--- a/gr-atsc/src/lib/atsci_equalizer_lms2.cc
+++ b/gr-atsc/src/lib/atsci_equalizer_lms2.cc
@@ -28,6 +28,7 @@
 #include <stdlib.h>
 #include <gr_math.h>
 #include <stdio.h>
+#include <boost/math/special_functions/fpclassify.hpp>
 
 using std::min;
 using std::max;
@@ -55,7 +56,7 @@ wrap (int d)
 static inline float 
 slice (float d)
 {
-  if (gr_isnan (d))
+  if (boost::math::isnan (d))
     return 0.0;
   
   if (d >= 0.0){
@@ -247,7 +248,7 @@ atsci_equalizer_lms2::filter1 (const float input[])
     acc -= d_taps_fb[i] * d_old_output[wrap(i + d_output_ptr)];
   }
 
-  if (gr_isnan (acc)){
+  if (boost::math::isnan (acc)){
     abort ();
   }
 
diff --git a/gr-atsc/src/lib/atsci_sssr.cc b/gr-atsc/src/lib/atsci_sssr.cc
index dc5c01b0d..4ccee85de 100644
--- a/gr-atsc/src/lib/atsci_sssr.cc
+++ b/gr-atsc/src/lib/atsci_sssr.cc
@@ -28,6 +28,7 @@
 #include <atsci_diag_output.h>
 #include <gr_math.h>
 #include <stdio.h>
+#include <boost/math/special_functions/sign.hpp>
 
 /*
  * ----------------------------------------------------------------
@@ -141,7 +142,7 @@ atsci_sssr::update (sssr::sample_t sample_in,	 // input
   double qo = d_quad_filter.update (sample_in);
   d_quad_output[d_counter] = qo;
 
-  int bit = gr_signbit (sample_in) ^ 1;	// slice on sign: + => 1, - => 0
+  int bit = boost::math::signbit (sample_in) ^ 1;	// slice on sign: + => 1, - => 0
   int corr_out = d_correlator.update (bit);
   int weight = sipp (corr_out);
   int corr_value = d_integrator.update (weight, d_counter);
-- 
cgit