Compile Issue

[Pyr3x]

[ 5%] Building CXX object src/CMakeFiles/LTE_MISC.dir/capbuf.cpp.o
In file included from /root/LTE-Cell-Scanner/src/capbuf.cpp:29:0:
/root/LTE-Cell-Scanner/include/dsp.h: In function ‘itpp::cvec fshift(const cvec&, double, double)’:
/root/LTE-Cell-Scanner/include/dsp.h:47:25: error: lvalue required as left operand of assignment
coeff.real()=cos(kt);
^
/root/LTE-Cell-Scanner/include/dsp.h:48:25: error: lvalue required as left operand of assignment
coeff.imag()=sin(kt);
^
/root/LTE-Cell-Scanner/include/dsp.h: In function ‘void fshift_inplace(itpp::cvec&, double, double)’:
/root/LTE-Cell-Scanner/include/dsp.h:64:25: error: lvalue required as left operand of assignment
coeff.real()=cos(kt);
^
/root/LTE-Cell-Scanner/include/dsp.h:65:25: error: lvalue required as left operand of assignment
coeff.imag()=sin(kt);
^
src/CMakeFiles/LTE_MISC.dir/build.make:62: recipe for target 'src/CMakeFiles/LTE_MISC.dir/capbuf.cpp.o' failed
make[2]: *** [src/CMakeFiles/LTE_MISC.dir/capbuf.cpp.o] Error 1
CMakeFiles/Makefile2:121: recipe for target 'src/CMakeFiles/LTE_MISC.dir/all' failed
make[1]: *** [src/CMakeFiles/LTE_MISC.dir/all] Error 2
Makefile:138: recipe for target 'all' failed
make: *** [all] Error 2

[itdaniher]

Same issue:

Scanning dependencies of target LTE_MISC
[ 16%] Building CXX object src/CMakeFiles/LTE_MISC.dir/itpp_ext.cpp.o
[ 16%] Building CXX object src/CMakeFiles/LTE_MISC.dir/capbuf.cpp.o
[ 16%] Building CXX object src/CMakeFiles/LTE_MISC.dir/constants.cpp.o
[ 22%] Building CXX object src/CMakeFiles/LTE_MISC.dir/macros.cpp.o
[ 27%] Building CXX object src/CMakeFiles/LTE_MISC.dir/searcher.cpp.o
[ 33%] Building CXX object src/CMakeFiles/LTE_MISC.dir/common.cpp.o
In file included from /home/name/kalibrate-rtl/LTE-Cell-Scanner/src/capbuf.cpp:29:0:
/home/name/kalibrate-rtl/LTE-Cell-Scanner/include/dsp.h: In function ‘itpp::cvec fshift(const cvec&, double, double)’:
/home/name/kalibrate-rtl/LTE-Cell-Scanner/include/dsp.h:47:25: error: lvalue required as left operand of assignment
     coeff.real()=cos(k*t);
                         ^
/home/name/kalibrate-rtl/LTE-Cell-Scanner/include/dsp.h:48:25: error: lvalue required as left operand of assignment
     coeff.imag()=sin(k*t);
                         ^
/home/name/kalibrate-rtl/LTE-Cell-Scanner/include/dsp.h: In function ‘void fshift_inplace(itpp::cvec&, double, double)’:
/home/name/kalibrate-rtl/LTE-Cell-Scanner/include/dsp.h:64:25: error: lvalue required as left operand of assignment
     coeff.real()=cos(k*t);
                         ^
/home/name/kalibrate-rtl/LTE-Cell-Scanner/include/dsp.h:65:25: error: lvalue required as left operand of assignment
     coeff.imag()=sin(k*t);
                         ^
src/CMakeFiles/LTE_MISC.dir/build.make:62: recipe for target 'src/CMakeFiles/LTE_MISC.dir/capbuf.cpp.o' failed
make[2]: *** [src/CMakeFiles/LTE_MISC.dir/capbuf.cpp.o] Error 1
make[2]: *** Waiting for unfinished jobs....
In file included from /home/name/kalibrate-rtl/LTE-Cell-Scanner/src/searcher.cpp:60:0:
/home/name/kalibrate-rtl/LTE-Cell-Scanner/include/dsp.h: In function ‘itpp::cvec fshift(const cvec&, double, double)’:
/home/name/kalibrate-rtl/LTE-Cell-Scanner/include/dsp.h:47:25: error: lvalue required as left operand of assignment
     coeff.real()=cos(k*t);
                         ^
/home/name/kalibrate-rtl/LTE-Cell-Scanner/include/dsp.h:48:25: error: lvalue required as left operand of assignment
     coeff.imag()=sin(k*t);
                         ^
/home/name/kalibrate-rtl/LTE-Cell-Scanner/include/dsp.h: In function ‘void fshift_inplace(itpp::cvec&, double, double)’:
/home/name/kalibrate-rtl/LTE-Cell-Scanner/include/dsp.h:64:25: error: lvalue required as left operand of assignment
     coeff.real()=cos(k*t);
                         ^
/home/name/kalibrate-rtl/LTE-Cell-Scanner/include/dsp.h:65:25: error: lvalue required as left operand of assignment
     coeff.imag()=sin(k*t);
                         ^
src/CMakeFiles/LTE_MISC.dir/build.make:158: recipe for target 'src/CMakeFiles/LTE_MISC.dir/searcher.cpp.o' failed
make[2]: *** [src/CMakeFiles/LTE_MISC.dir/searcher.cpp.o] Error 1
In file included from /home/name/kalibrate-rtl/LTE-Cell-Scanner/src/common.cpp:24:0:
/home/name/kalibrate-rtl/LTE-Cell-Scanner/include/dsp.h: In function ‘itpp::cvec fshift(const cvec&, double, double)’:
/home/name/kalibrate-rtl/LTE-Cell-Scanner/include/dsp.h:47:25: error: lvalue required as left operand of assignment
     coeff.real()=cos(k*t);
                         ^
/home/name/kalibrate-rtl/LTE-Cell-Scanner/include/dsp.h:48:25: error: lvalue required as left operand of assignment
     coeff.imag()=sin(k*t);
                         ^
/home/name/kalibrate-rtl/LTE-Cell-Scanner/include/dsp.h: In function ‘void fshift_inplace(itpp::cvec&, double, double)’:
/home/name/kalibrate-rtl/LTE-Cell-Scanner/include/dsp.h:64:25: error: lvalue required as left operand of assignment
     coeff.real()=cos(k*t);
                         ^
/home/name/kalibrate-rtl/LTE-Cell-Scanner/include/dsp.h:65:25: error: lvalue required as left operand of assignment
     coeff.imag()=sin(k*t);
                         ^
src/CMakeFiles/LTE_MISC.dir/build.make:182: recipe for target 'src/CMakeFiles/LTE_MISC.dir/common.cpp.o' failed
make[2]: *** [src/CMakeFiles/LTE_MISC.dir/common.cpp.o] Error 1
CMakeFiles/Makefile2:121: recipe for target 'src/CMakeFiles/LTE_MISC.dir/all' failed
make[1]: *** [src/CMakeFiles/LTE_MISC.dir/all] Error 2
Makefile:138: recipe for target 'all' failed
make: *** [all] Error 2

COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/arm-linux-gnueabihf/6/lto-wrapper
Target: arm-linux-gnueabihf
Configured with: ../src/configure -v --with-pkgversion='Debian 6.3.0-5' --with-bugurl=file:///usr/share/doc/gcc-6/README.Bugs --enable-languages=c,ada,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-6 --program-prefix=arm-linux-gnueabihf- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-libitm --disable-libquadmath --enable-plugin --enable-default-pie --with-system-zlib --disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-6-armhf/jre --enable-java-home --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-6-armhf --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-6-armhf --with-arch-directory=arm --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --with-target-system-zlib --enable-objc-gc=auto --enable-multiarch --disable-sjlj-exceptions --with-arch=armv7-a --with-fpu=vfpv3-d16 --with-float=hard --with-mode=thumb --enable-checking=release --build=arm-linux-gnueabihf --host=arm-linux-gnueabihf --target=arm-linux-gnueabihf
Thread model: posix
gcc version 6.3.0 20170124 (Debian 6.3.0-5)

ii  libitpp-dev                            4.3.1-7                              armhf        C++ library of signal processing and communication routines: Headers
ii  libitpp8v5:armhf                       4.3.1-7                              armhf        C++ library of signal processing and communication routines

Linux 3.4.113-sun8i #50 SMP PREEMPT Mon Nov 14 08:41:55 CET 2016 armv7l

[itdaniher]

The fix is pretty simple, just adding '-std=c++03' to CMAKE_CXX_FLAGS

https://ubuntuforums.org/showthread.php?t=2349493

[solsticedhiver]

well the correct fix is to use the new syntax:

diff --git a/include/dsp.h b/include/dsp.h
index fcba157..3c68a67 100644
--- a/include/dsp.h
+++ b/include/dsp.h
@@ -44,8 +44,8 @@ inline itpp::cvec fshift(const itpp::cvec &seq,const double f,const double fs) {
   itpp::cvec r(len);
   std::complex<double>coeff;
   for (uint32 t=0;t<len;t++) {
-    coeff.real()=cos(k*t);
-    coeff.imag()=sin(k*t);
+    coeff.real(cos(k*t));
+    coeff.imag(sin(k*t));
     //r(t)=seq(t)*exp(k*((double)t));
     r(t)=seq(t)*coeff;
   }
@@ -61,8 +61,8 @@ inline void fshift_inplace(itpp::cvec &seq,const double f,const double fs) {
   const uint32 len=length(seq);
   std::complex<double>coeff;
   for (uint32 t=0;t<len;t++) {
-    coeff.real()=cos(k*t);
-    coeff.imag()=sin(k*t);
+    coeff.real(cos(k*t));
+    coeff.imag(sin(k*t));
     //r(t)=seq(t)*exp(k*((double)t));
     seq(t)*=coeff;
   }
diff --git a/src/producer_thread.cpp b/src/producer_thread.cpp
index 6c72618..a24ca84 100644
--- a/src/producer_thread.cpp
+++ b/src/producer_thread.cpp
@@ -124,9 +124,9 @@ void producer_thread(
           n_samples=t;
           break;
         }
-        sample_temp.real()=(sampbuf_sync.fifo.front()-127.0)/128.0;
+        sample_temp.real((sampbuf_sync.fifo.front()-127.0)/128.0);
         sampbuf_sync.fifo.pop_front();
-        sample_temp.imag()=(sampbuf_sync.fifo.front()-127.0)/128.0;
+        sample_temp.imag((sampbuf_sync.fifo.front()-127.0)/128.0);
         sampbuf_sync.fifo.pop_front();
         samples(t)=sample_temp;
         sample_time+=(FS_LTE/16)/(fs_programmed*k_factor);
diff --git a/src/tracker_thread.cpp b/src/tracker_thread.cpp
index c903685..d054341 100644
--- a/src/tracker_thread.cpp
+++ b/src/tracker_thread.cpp
@@ -163,10 +163,10 @@ void get_fd(
   const complex <double> bpo_coeff=complex<double>(cos(bulk_phase_offset),sin(bulk_phase_offset));
   for (uint8 t=1;t<=36;t++) {
     phase=-k*t;
-    coeff.real()=cos(phase);
-    coeff.imag()=sin(phase);
+    coeff.real(cos(phase));
+    coeff.imag(sin(phase));
     syms(35+t)*=bpo_coeff*coeff;
-    coeff.imag()=-coeff.imag();
+    coeff.imag(-coeff.imag());
     syms(36-t)*=bpo_coeff*coeff;
   }
   // At this point, we have the frequency domain data for this slot and