From f8eed0713059b5c4e8e56ba98b8a33fe2a472d84 Mon Sep 17 00:00:00 2001
From: Jamie Bullock <jamie@postlude.co.uk>
Date: Mon, 3 Sep 2007 14:31:58 +0000
Subject: Checked ANSI C89 compliance (basically a few ifndefs for the C99 math
 functions: powf, roundf etc). Added a few PD examples/tests.

---
 src/scalar.c |  8 ++++++++
 src/vector.c | 11 ++++++++++-
 2 files changed, 18 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/scalar.c b/src/scalar.c
index ec22dd4..6270869 100644
--- a/src/scalar.c
+++ b/src/scalar.c
@@ -28,6 +28,14 @@
 #include <string.h>
 #include <stdio.h>
 
+#ifndef powf
+    #define powf pow
+#endif
+
+#ifndef expf
+    #define expf exp
+#endif
+
 int xtract_mean(const float *data, const int N, const void *argv, float *result){
 
     int n = N;
diff --git a/src/vector.c b/src/vector.c
index 77bad64..0df7048 100644
--- a/src/vector.c
+++ b/src/vector.c
@@ -27,6 +27,15 @@
 #include <string.h>
 #include <stdlib.h>
 
+#ifndef roundf
+    float roundf(float f){
+	if (f - (int)f >= 0.5) 
+	    return (float)((int)f + 1);
+	else
+	    return (float)((int)f);
+    }
+#endif
+
 #ifdef XTRACT_FFT
 
 #include <fftw3.h>
@@ -411,7 +420,7 @@ int xtract_harmonic_spectrum(const float *data, const int N, const void *argv, f
     while(n--){
 	if(freqs[n]){
 	    ratio = freqs[n] / f0;
-	    nearest = round(ratio);
+	    nearest = roundf(ratio);
 	    distance = fabs(nearest - ratio);
 	    if(distance > threshold)
 		result[n] = result[M + n] = 0.f;
-- 
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