From 14e80dc2d3a99608c559991072eb41446f7b7754 Mon Sep 17 00:00:00 2001
From: Sergio Martins <sergio.martins@kdab.com>
Date: Sat, 28 Mar 2015 17:26:20 +0000
Subject: Fix QNX 6.6 build by using qSqrt() and qLn()

spectrumanalyser.cpp: In member function 'void SpectrumAnalyserThread::calculateSpectrum(const QByteArray&, int, int)':
spectrumanalyser.cpp:138:59: error: 'sqrt' was not declared in this scope

Change-Id: Ib43c693d73d2342059092094cfc3f48a0f73b4bc
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
---
 examples/multimedia/spectrum/app/spectrumanalyser.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'examples/multimedia/spectrum')

diff --git a/examples/multimedia/spectrum/app/spectrumanalyser.cpp b/examples/multimedia/spectrum/app/spectrumanalyser.cpp
index e8a9f8dcb..6199221d1 100644
--- a/examples/multimedia/spectrum/app/spectrumanalyser.cpp
+++ b/examples/multimedia/spectrum/app/spectrumanalyser.cpp
@@ -135,8 +135,8 @@ void SpectrumAnalyserThread::calculateSpectrum(const QByteArray &buffer,
         if (i>0 && i<m_numSamples/2)
             imag = m_output[m_numSamples/2 + i];
 
-        const qreal magnitude = sqrt(real*real + imag*imag);
-        qreal amplitude = SpectrumAnalyserMultiplier * log(magnitude);
+        const qreal magnitude = qSqrt(real*real + imag*imag);
+        qreal amplitude = SpectrumAnalyserMultiplier * qLn(magnitude);
 
         // Bound amplitude to [0.0, 1.0]
         m_spectrum[i].clipped = (amplitude > 1.0);
-- 
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