With recent versions of root (5.32 or svn), the FITS_tutorial1.C crashes on two machines that I tested it on:
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Exposure time = 5.007
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We can read the image as a matrix of values.
This feature is useful to do image processing, e.g:
histogram equalization, custom filtering, ...
292x389 matrix is as follows
| 0 | 1 | 2 | 3 | 4 |
----------------------------------------------------------------------
*** Break *** segmentation violation
0 |
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There was a crash (#7 0x0068629d in SigHandler () from /opt/pi/ext/dload/root/lib/libCore.so).
This is the entire stack trace of all threads:
===========================================================
#0 0x00110416 in __kernel_vsyscall ()
#1 0x00225953 in __waitpid_nocancel () from /lib/libc.so.6
#2 0x001c9bab in do_system () from /lib/libc.so.6
#3 0x001878dd in system () from /lib/libpthread.so.0
#4 0x00681d1d in TUnixSystem::Exec ()
from /opt/pi/ext/dload/root/lib/libCore.so
#5 0x006898dd in TUnixSystem::StackTrace ()
from /opt/pi/ext/dload/root/lib/libCore.so
#6 0x006861cb in TUnixSystem::DispatchSignals ()
from /opt/pi/ext/dload/root/lib/libCore.so
#7 0x0068629d in SigHandler () from /opt/pi/ext/dload/root/lib/libCore.so
#8 0x0067f154 in sighandler () from /opt/pi/ext/dload/root/lib/libCore.so
#9 0x006b0b71 in textinput::TerminalConfigUnix::HandleSignal ()
from /opt/pi/ext/dload/root/lib/libCore.so
#10 0x006b0fd6 in (anonymous namespace)::TerminalConfigUnix__handleSignal ()
from /opt/pi/ext/dload/root/lib/libCore.so
#11 <signal handler called>
#12 0x019db578 in TMatrixT<double>::operator() ()
from /opt/pi/ext/dload/root/lib/libMatrix.so
#13 0x01a059ae in TMatrixTBase<double>::Print ()
from /opt/pi/ext/dload/root/lib/libMatrix.so
#14 0x007c46fa in G__G__Base2_10_0_45 ()
from /opt/pi/ext/dload/root/lib/libCore.so
#15 0x00c37dca in Cint::G__ExceptionWrapper ()
from /opt/pi/ext/dload/root/lib/libCint.so
#16 0x00cf2a76 in G__execute_call () from /opt/pi/ext/dload/root/lib/libCint.so
#17 0x00cf702d in G__call_cppfunc () from /opt/pi/ext/dload/root/lib/libCint.so
#18 0x00cc967d in G__interpret_func ()
from /opt/pi/ext/dload/root/lib/libCint.so
#19 0x00cb6de8 in G__getfunction () from /opt/pi/ext/dload/root/lib/libCint.so
#20 0x00dba43c in G__getstructmem () from /opt/pi/ext/dload/root/lib/libCint.so
#21 0x00db0228 in G__getvariable () from /opt/pi/ext/dload/root/lib/libCint.so
#22 0x00c8aec1 in G__getitem () from /opt/pi/ext/dload/root/lib/libCint.so
#23 0x00c94a49 in G__getexpr () from /opt/pi/ext/dload/root/lib/libCint.so
#24 0x00d26999 in G__exec_statement ()
from /opt/pi/ext/dload/root/lib/libCint.so
#25 0x00cca8fc in G__interpret_func ()
from /opt/pi/ext/dload/root/lib/libCint.so
#26 0x00cb6f58 in G__getfunction () from /opt/pi/ext/dload/root/lib/libCint.so
#27 0x00c8afb1 in G__getitem () from /opt/pi/ext/dload/root/lib/libCint.so
#28 0x00c94a49 in G__getexpr () from /opt/pi/ext/dload/root/lib/libCint.so
#29 0x00c9b85d in G__calc_internal ()
from /opt/pi/ext/dload/root/lib/libCint.so
#30 0x00d35b83 in G__process_cmd () from /opt/pi/ext/dload/root/lib/libCint.so
#31 0x0063bc63 in TCint::ProcessLine ()
from /opt/pi/ext/dload/root/lib/libCore.so
#32 0x0063b87f in TCint::ProcessLineSynch ()
from /opt/pi/ext/dload/root/lib/libCore.so
#33 0x005845b2 in TApplication::ExecuteFile ()
from /opt/pi/ext/dload/root/lib/libCore.so
#34 0x00584b4c in TApplication::ProcessFile ()
from /opt/pi/ext/dload/root/lib/libCore.so
#35 0x005817e2 in TApplication::ProcessLine ()
from /opt/pi/ext/dload/root/lib/libCore.so
#36 0x0011eb87 in TRint::HandleTermInput ()
from /opt/pi/ext/dload/root/lib/libRint.so
#37 0x0011c6f5 in TTermInputHandler::Notify ()
from /opt/pi/ext/dload/root/lib/libRint.so
#38 0x0011f7b4 in TTermInputHandler::ReadNotify ()
from /opt/pi/ext/dload/root/lib/libRint.so
#39 0x00685dab in TUnixSystem::CheckDescriptors ()
from /opt/pi/ext/dload/root/lib/libCore.so
#40 0x00686935 in TUnixSystem::DispatchOneEvent ()
from /opt/pi/ext/dload/root/lib/libCore.so
#41 0x005ea194 in TSystem::InnerLoop ()
from /opt/pi/ext/dload/root/lib/libCore.so
#42 0x005ee091 in TSystem::Run () from /opt/pi/ext/dload/root/lib/libCore.so
#43 0x0057faa8 in TApplication::Run ()
from /opt/pi/ext/dload/root/lib/libCore.so
#44 0x0011f34c in TRint::Run () from /opt/pi/ext/dload/root/lib/libRint.so
#45 0x08048d93 in main ()
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It is possible that it is a bug, so I post it