Mock Version: 1.2.17 ENTER ['do'](['bash', '--login', '-c', '/usr/bin/rpmbuild -bs --target armv7hl --nodeps /builddir/build/SPECS/qm-vamp-plugins.spec'], chrootPath='/var/lib/mock/epel-1-armhfp-a729cc55503ec4bba4137b17f31ff44393d4e0b3/root'shell=FalseprintOutput=Falseenv={'LANG': 'en_US.UTF-8', 'TERM': 'vt100', 'SHELL': '/bin/bash', 'PROMPT_COMMAND': 'printf "\x1b]0;\x07"', 'PATH': '/usr/bin:/bin:/usr/sbin:/sbin', 'HOME': '/builddir', 'HOSTNAME': 'mock'}gid=135user='mockbuild'timeout=0logger=uid=996) Executing command: ['bash', '--login', '-c', '/usr/bin/rpmbuild -bs --target armv7hl --nodeps /builddir/build/SPECS/qm-vamp-plugins.spec'] with env {'LANG': 'en_US.UTF-8', 'TERM': 'vt100', 'SHELL': '/bin/bash', 'PROMPT_COMMAND': 'printf "\x1b]0;\x07"', 'PATH': '/usr/bin:/bin:/usr/sbin:/sbin', 'HOME': '/builddir', 'HOSTNAME': 'mock'} and shell False Building target platforms: armv7hl Building for target armv7hl Wrote: /builddir/build/SRPMS/qm-vamp-plugins-1.7.1-1.el7.src.rpm Child return code was: 0 ENTER ['do'](['bash', '--login', '-c', u'/usr/bin/rpmbuild -bb --target armv7hl --nodeps /builddir/build/SPECS/qm-vamp-plugins.spec'], chrootPath='/var/lib/mock/epel-1-armhfp-a729cc55503ec4bba4137b17f31ff44393d4e0b3/root'shell=Falseuid=996env={'LANG': 'en_US.UTF-8', 'TERM': 'vt100', 'SHELL': '/bin/bash', 'PROMPT_COMMAND': 'printf "\x1b]0;\x07"', 'PATH': '/usr/bin:/bin:/usr/sbin:/sbin', 'HOME': '/builddir', 'HOSTNAME': 'mock'}gid=135user='mockbuild'timeout=0private_network=Truelogger=printOutput=False) Executing command: ['bash', '--login', '-c', u'/usr/bin/rpmbuild -bb --target armv7hl --nodeps /builddir/build/SPECS/qm-vamp-plugins.spec'] with env {'LANG': 'en_US.UTF-8', 'TERM': 'vt100', 'SHELL': '/bin/bash', 'PROMPT_COMMAND': 'printf "\x1b]0;\x07"', 'PATH': '/usr/bin:/bin:/usr/sbin:/sbin', 'HOME': '/builddir', 'HOSTNAME': 'mock'} and shell False Building target platforms: armv7hl Building for target armv7hl Executing(%prep): /bin/sh -e /var/tmp/rpm-tmp.H4Zpug + umask 022 + cd /builddir/build/BUILD + cd /builddir/build/BUILD + rm -rf qm-vamp-plugins-1.7.1 + /usr/bin/gzip -dc /builddir/build/SOURCES/qm-vamp-plugins-1.7.1.tar.gz + /usr/bin/tar -xf - + STATUS=0 + '[' 0 -ne 0 ']' + cd qm-vamp-plugins-1.7.1 + /usr/bin/chmod -Rf a+rX,u+w,g-w,o-w . + rm -rf build/linux/amd64 build/linux/i686 + cp -p build/linux/Makefile.linux32 Makefile + rm -rf qm-dsp Patch #0 (qm-vamp-plugins-build.patch): + echo 'Patch #0 (qm-vamp-plugins-build.patch):' + /usr/bin/cat /builddir/build/SOURCES/qm-vamp-plugins-build.patch + /usr/bin/patch -p1 --fuzz=0 patching file Makefile Patch #1 (qm-vamp-plugins-unbundle.patch): + echo 'Patch #1 (qm-vamp-plugins-unbundle.patch):' + /usr/bin/cat /builddir/build/SOURCES/qm-vamp-plugins-unbundle.patch + /usr/bin/patch -p1 --fuzz=0 patching file build/general/Makefile.inc + exit 0 Executing(%build): /bin/sh -e /var/tmp/rpm-tmp.FGAiqW + umask 022 + cd /builddir/build/BUILD + cd qm-vamp-plugins-1.7.1 + ATLAS_LIBS='-L/usr/lib/atlas -ltatlas' + CFLAGS='-I/usr/include/qm-dsp -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=hard' + LDFLAGS='-Wl,-z,relro ' + ATLAS_LIBS='-L/usr/lib/atlas -ltatlas' + make -j4 cc -DNDEBUG -fno-exceptions -fPIC -ffast-math -ftree-vectorize -fomit-frame-pointer -DUSE_PTHREADS -I/usr/include/qm-dsp -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=hard -I. -c -o g2cstubs.o g2cstubs.c g++ -DNDEBUG -fno-exceptions -fPIC -ffast-math -ftree-vectorize -fomit-frame-pointer -DUSE_PTHREADS -I/usr/include/qm-dsp -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=hard -I. -c -o plugins/AdaptiveSpectrogram.o plugins/AdaptiveSpectrogram.cpp g++ -DNDEBUG -fno-exceptions -fPIC -ffast-math -ftree-vectorize -fomit-frame-pointer -DUSE_PTHREADS -I/usr/include/qm-dsp -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=hard -I. -c -o plugins/BarBeatTrack.o plugins/BarBeatTrack.cpp g++ -DNDEBUG -fno-exceptions -fPIC -ffast-math -ftree-vectorize -fomit-frame-pointer -DUSE_PTHREADS -I/usr/include/qm-dsp -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=hard -I. -c -o plugins/BeatTrack.o plugins/BeatTrack.cpp g++ -DNDEBUG -fno-exceptions -fPIC -ffast-math -ftree-vectorize -fomit-frame-pointer -DUSE_PTHREADS -I/usr/include/qm-dsp -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=hard -I. -c -o plugins/DWT.o plugins/DWT.cpp plugins/DWT.cpp: In member function 'virtual bool DWT::initialise(size_t, size_t, size_t)': plugins/DWT.cpp:97:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ((1 << m_scales) > blockSize) { ^ In file included from plugins/AdaptiveSpectrogram.cpp:15:0: plugins/AdaptiveSpectrogram.h: In constructor 'AdaptiveSpectrogram::AdaptiveSpectrogram(float)': plugins/AdaptiveSpectrogram.h:255:18: warning: 'AdaptiveSpectrogram::m_threadsInUse' will be initialized after [-Wreorder] mutable bool m_threadsInUse; ^ plugins/AdaptiveSpectrogram.h:68:9: warning: 'int AdaptiveSpectrogram::m_decFactor' [-Wreorder] int m_decFactor; ^ plugins/AdaptiveSpectrogram.cpp:36:1: warning: when initialized here [-Wreorder] AdaptiveSpectrogram::AdaptiveSpectrogram(float inputSampleRate) : ^ In file included from plugins/AdaptiveSpectrogram.cpp:15:0: plugins/AdaptiveSpectrogram.h:70:9: warning: 'AdaptiveSpectrogram::m_buflen' will be initialized after [-Wreorder] int m_buflen; ^ plugins/AdaptiveSpectrogram.h:69:12: warning: 'float* AdaptiveSpectrogram::m_buffer' [-Wreorder] float *m_buffer; ^ plugins/AdaptiveSpectrogram.cpp:36:1: warning: when initialized here [-Wreorder] AdaptiveSpectrogram::AdaptiveSpectrogram(float inputSampleRate) : ^ plugins/AdaptiveSpectrogram.cpp: In destructor 'virtual AdaptiveSpectrogram::~AdaptiveSpectrogram()': plugins/AdaptiveSpectrogram.cpp:52:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < m_cutThreads.size(); ++i) { ^ In file included from plugins/BeatTrack.cpp:15:0: plugins/BeatTrack.h: In constructor 'BeatTracker::BeatTracker(float)': plugins/BeatTrack.h:65:10: warning: 'BeatTracker::m_whiten' will be initialized after [-Wreorder] bool m_whiten; ^ plugins/BeatTrack.h:60:12: warning: 'double BeatTracker::m_alpha' [-Wreorder] double m_alpha; ^ plugins/BeatTrack.cpp:55:1: warning: when initialized here [-Wreorder] BeatTracker::BeatTracker(float inputSampleRate) : ^ plugins/AdaptiveSpectrogram.cpp: In member function 'virtual _VampPlugin::Vamp::Plugin::OutputList AdaptiveSpectrogram::getOutputDescriptors() const': plugins/AdaptiveSpectrogram.cpp:292:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < d.binCount; ++i) { ^ plugins/BarBeatTrack.cpp: In member function '_VampPlugin::Vamp::Plugin::FeatureSet BarBeatTracker::barBeatTrack()': plugins/BarBeatTrack.cpp:441:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (dbi < downbeats.size() && i == downbeats[dbi]) { ^ plugins/BarBeatTrack.cpp:441:57: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (dbi < downbeats.size() && i == downbeats[dbi]) { ^ plugins/AdaptiveSpectrogram.cpp: In member function 'virtual _VampPlugin::Vamp::Plugin::FeatureSet AdaptiveSpectrogram::process(const float* const*, _VampPlugin::Vamp::RealTime)': plugins/AdaptiveSpectrogram.cpp:395:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < rmat.size(); ++i) { ^ g++ -DNDEBUG -fno-exceptions -fPIC -ffast-math -ftree-vectorize -fomit-frame-pointer -DUSE_PTHREADS -I/usr/include/qm-dsp -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=hard -I. -c -o plugins/OnsetDetect.o plugins/OnsetDetect.cpp g++ -DNDEBUG -fno-exceptions -fPIC -ffast-math -ftree-vectorize -fomit-frame-pointer -DUSE_PTHREADS -I/usr/include/qm-dsp -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=hard -I. -c -o plugins/ChromagramPlugin.o plugins/ChromagramPlugin.cpp plugins/ChromagramPlugin.cpp: In member function 'virtual bool ChromagramPlugin::initialise(size_t, size_t, size_t)': plugins/ChromagramPlugin.cpp:222:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < m_config.BPO; ++i) { ^ plugins/ChromagramPlugin.cpp: In member function 'virtual void ChromagramPlugin::reset()': plugins/ChromagramPlugin.cpp:252:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < m_config.BPO; ++i) { ^ g++ -DNDEBUG -fno-exceptions -fPIC -ffast-math -ftree-vectorize -fomit-frame-pointer -DUSE_PTHREADS -I/usr/include/qm-dsp -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=hard -I. -c -o plugins/ConstantQSpectrogram.o plugins/ConstantQSpectrogram.cpp g++ -DNDEBUG -fno-exceptions -fPIC -ffast-math -ftree-vectorize -fomit-frame-pointer -DUSE_PTHREADS -I/usr/include/qm-dsp -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=hard -I. -c -o plugins/KeyDetect.o plugins/KeyDetect.cpp g++ -DNDEBUG -fno-exceptions -fPIC -ffast-math -ftree-vectorize -fomit-frame-pointer -DUSE_PTHREADS -I/usr/include/qm-dsp -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=hard -I. -c -o plugins/MFCCPlugin.o plugins/MFCCPlugin.cpp plugins/MFCCPlugin.cpp: In member function 'virtual _VampPlugin::Vamp::Plugin::FeatureSet MFCCPlugin::process(const float* const*, _VampPlugin::Vamp::RealTime)': plugins/MFCCPlugin.cpp:277:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (size_t i = 0; i < m_bins; ++i) { ^ plugins/MFCCPlugin.cpp: In member function 'virtual _VampPlugin::Vamp::Plugin::FeatureSet MFCCPlugin::getRemainingFeatures()': plugins/MFCCPlugin.cpp:300:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (size_t i = 0; i < m_bins; ++i) { ^ g++ -DNDEBUG -fno-exceptions -fPIC -ffast-math -ftree-vectorize -fomit-frame-pointer -DUSE_PTHREADS -I/usr/include/qm-dsp -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=hard -I. -c -o plugins/SegmenterPlugin.o plugins/SegmenterPlugin.cpp g++ -DNDEBUG -fno-exceptions -fPIC -ffast-math -ftree-vectorize -fomit-frame-pointer -DUSE_PTHREADS -I/usr/include/qm-dsp -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=hard -I. -c -o plugins/SimilarityPlugin.o plugins/SimilarityPlugin.cpp In file included from plugins/SegmenterPlugin.cpp:19:0: plugins/SegmenterPlugin.h: In constructor 'SegmenterPlugin::SegmenterPlugin(float)': plugins/SegmenterPlugin.h:61:9: warning: 'SegmenterPlugin::nSegmentTypes' will be initialized after [-Wreorder] int nSegmentTypes; ^ plugins/SegmenterPlugin.h:60:19: warning: 'float SegmenterPlugin::neighbourhoodLimit' [-Wreorder] mutable float neighbourhoodLimit; // in sec ^ plugins/SegmenterPlugin.cpp:28:1: warning: when initialized here [-Wreorder] SegmenterPlugin::SegmenterPlugin(float inputSampleRate) : ^ plugins/SegmenterPlugin.cpp: In member function 'virtual bool SegmenterPlugin::initialise(size_t, size_t, size_t)': plugins/SegmenterPlugin.cpp:84:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (stepSize != hopsize) { ^ plugins/SegmenterPlugin.cpp:91:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (blockSize != windowsize) { ^ plugins/SegmenterPlugin.cpp: In member function 'virtual _VampPlugin::Vamp::Plugin::FeatureSet SegmenterPlugin::process(const float* const*, _VampPlugin::Vamp::RealTime)': plugins/SegmenterPlugin.cpp:285:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (size_t i = 0; i < windowsize; ++i) { ^ plugins/SegmenterPlugin.cpp: In member function 'virtual _VampPlugin::Vamp::Plugin::FeatureSet SegmenterPlugin::getRemainingFeatures()': plugins/SegmenterPlugin.cpp:311:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < segm.segments.size(); ++i) { ^ plugins/SegmenterPlugin.cpp:319:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < segm.segments.size(); ++i) { ^ plugins/SegmenterPlugin.cpp:329:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (i + 1 < segm.segments.size()) { ^ plugins/SimilarityPlugin.cpp: In member function 'virtual void SimilarityPlugin::reset()': plugins/SimilarityPlugin.cpp:510:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < m_values.size(); ++i) { ^ plugins/SimilarityPlugin.cpp:514:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < m_rhythmValues.size(); ++i) { ^ plugins/SimilarityPlugin.cpp:518:50: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < m_lastNonEmptyFrame.size(); ++i) { ^ plugins/SimilarityPlugin.cpp:522:48: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < m_emptyFrameCount.size(); ++i) { ^ plugins/SimilarityPlugin.cpp: In member function 'virtual _VampPlugin::Vamp::Plugin::FeatureSet SimilarityPlugin::process(const float* const*, _VampPlugin::Vamp::RealTime)': plugins/SimilarityPlugin.cpp:547:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (size_t c = 0; c < m_channels; ++c) { ^ plugins/SimilarityPlugin.cpp:551:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < m_blockSize; ++i) { ^ plugins/SimilarityPlugin.cpp:559:49: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < m_fftSize / m_rhythmClipFrameSize; ++i) { ^ plugins/SimilarityPlugin.cpp:560:52: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (m_rhythmValues[c].size() < m_rhythmClipFrames) { ^ plugins/SimilarityPlugin.cpp:608:59: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (frameOffset + m_rhythmClipFrameSize <= m_fftSize) { ^ plugins/SimilarityPlugin.cpp:612:49: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (m_rhythmValues[c].size() >= m_rhythmClipFrames) { ^ plugins/SimilarityPlugin.cpp: In member function 'SimilarityPlugin::FeatureMatrix SimilarityPlugin::calculateTimbral(_VampPlugin::Vamp::Plugin::FeatureSet&)': plugins/SimilarityPlugin.cpp:684:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (sz >= m_values[i].size()) sz = m_values[i].size()-1; ^ plugins/SimilarityPlugin.cpp: In member function 'SimilarityPlugin::FeatureMatrix SimilarityPlugin::calculateRhythmic(_VampPlugin::Vamp::Plugin::FeatureSet&)': plugins/SimilarityPlugin.cpp:806:52: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < m_rhythmValues[i].size(); ++j) { ^ plugins/SimilarityPlugin.cpp:837:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < bs[i].size(); ++j) { ^ g++ -DNDEBUG -fno-exceptions -fPIC -ffast-math -ftree-vectorize -fomit-frame-pointer -DUSE_PTHREADS -I/usr/include/qm-dsp -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=hard -I. -c -o plugins/TonalChangeDetect.o plugins/TonalChangeDetect.cpp In file included from plugins/TonalChangeDetect.h:21:0, from plugins/TonalChangeDetect.cpp:15: /usr/include/qm-dsp/dsp/tonal/TonalEstimator.h: In member function 'void ChromaVector::printDebug()': /usr/include/qm-dsp/dsp/tonal/TonalEstimator.h:35:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < size(); i++) ^ /usr/include/qm-dsp/dsp/tonal/TonalEstimator.h: In member function 'void TCSVector::printDebug()': /usr/include/qm-dsp/dsp/tonal/TonalEstimator.h:71:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < size(); i++) ^ plugins/TonalChangeDetect.cpp: In member function 'virtual _VampPlugin::Vamp::Plugin::FeatureSet TonalChangeDetect::getRemainingFeatures()': plugins/TonalChangeDetect.cpp:412:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < d.size(); i++) ^ plugins/TonalChangeDetect.cpp:416:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] double dNext = d[i < d.size()-1 ? i + 1 : i]; ^ g++ -DNDEBUG -fno-exceptions -fPIC -ffast-math -ftree-vectorize -fomit-frame-pointer -DUSE_PTHREADS -I/usr/include/qm-dsp -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=hard -I. -c -o plugins/Transcription.o plugins/Transcription.cpp plugins/Transcription.cpp: In member function 'virtual _VampPlugin::Vamp::Plugin::FeatureSet Transcription::getRemainingFeatures()': plugins/Transcription.cpp:399:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j = 0; j