Language
C++
Compiler
gcc HEAD 9.0.1 20190411 (experimental)
Options
Warnings
Optimization
Don't Use Boost
C++2a
no pedantic
Raw compiler options
-pedantic
-pthread
$ g++ prog.cc -Wall -Wextra -O2 -march=native -std=c++2a -pedantic -pthread*** Error in `./prog.exe': double free or corruption (fasttop): 0x0000000001cdfca0 ***
======= Backtrace: =========
/lib/x86_64-linux-gnu/libc.so.6(+0x777e5)[0x7fb3b31907e5]
/lib/x86_64-linux-gnu/libc.so.6(+0x8037a)[0x7fb3b319937a]
/lib/x86_64-linux-gnu/libc.so.6(cfree+0x4c)[0x7fb3b319d53c]
./prog.exe[0x401048]
./prog.exe[0x40101c]
/lib/x86_64-linux-gnu/libc.so.6(+0x39ff8)[0x7fb3b3152ff8]
/lib/x86_64-linux-gnu/libc.so.6(+0x3a045)[0x7fb3b3153045]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf7)[0x7fb3b3139837]
./prog.exe[0x400b49]
======= Memory map: ========
00400000-00402000 r-xp 00000000 fd:03 11061635 /home/jail/prog.exe
00601000-00602000 rw-p 00001000 fd:03 11061635 /home/jail/prog.exe
01cce000-01d00000 rw-p 00000000 00:00 0 [heap]
7fb3ac000000-7fb3ac021000 rw-p 00000000 00:00 0
7fb3ac021000-7fb3b0000000 ---p 00000000 00:00 0
7fb3b3119000-7fb3b32d9000 r-xp 00000000 fd:03 147125 /lib/x86_64-linux-gnu/libc-2.23.so
7fb3b32d9000-7fb3b34d9000 ---p 001c0000 fd:03 147125 /lib/x86_64-linux-gnu/libc-2.23.so
7fb3b34d9000-7fb3b34dd000 r--p 001c0000 fd:03 147125 /lib/x86_64-linux-gnu/libc-2.23.so
7fb3b34dd000-7fb3b34df000 rw-p 001c4000 fd:03 147125 /lib/x86_64-linux-gnu/libc-2.23.so
7fb3b34df000-7fb3b34e3000 rw-p 00000000 00:00 0
7fb3b34e3000-7fb3b34f9000 r-xp 00000000 fd:03 1848470 /opt/wandbox/gcc-head/lib64/libgcc_s.so.1
7fb3b34f9000-7fb3b36f9000 ---p 00016000 fd:03 1848470 /opt/wandbox/gcc-head/lib64/libgcc_s.so.1
7fb3b36f9000-7fb3b36fa000 rw-p 00016000 fd:03 1848470 /opt/wandbox/gcc-head/lib64/libgcc_s.so.1
7fb3b36fa000-7fb3b3802000 r-xp 00000000 fd:03 147128 /lib/x86_64-linux-gnu/libm-2.23.so
7fb3b3802000-7fb3b3a01000 ---p 00108000 fd:03 147128 /lib/x86_64-linux-gnu/libm-2.23.so
7fb3b3a01000-7fb3b3a02000 r--p 00107000 fd:03 147128 /lib/x86_64-linux-gnu/libm-2.23.so
7fb3b3a02000-7fb3b3a03000 rw-p 00108000 fd:03 147128 /lib/x86_64-linux-gnu/libm-2.23.so
7fb3b3a03000-7fb3b3bcb000 r-xp 00000000 fd:03 1848498 /opt/wandbox/gcc-head/lib64/libstdc++.so.6.0.26
7fb3b3bcb000-7fb3b3dcb000 ---p 001c8000 fd:03 1848498 /opt/wandbox/gcc-head/lib64/libstdc++.so.6.0.26
7fb3b3dcb000-7fb3b3dd6000 r--p 001c8000 fd:03 1848498 /opt/wandbox/gcc-head/lib64/libstdc++.so.6.0.26
7fb3b3dd6000-7fb3b3dd9000 rw-p 001d3000 fd:03 1848498 /opt/wandbox/gcc-head/lib64/libstdc++.so.6.0.26
7fb3b3dd9000-7fb3b3ddc000 rw-p 00000000 00:00 0
7fb3b3ddc000-7fb3b3df4000 r-xp 00000000 fd:03 147112 /lib/x86_64-linux-gnu/libpthread-2.23.so
7fb3b3df4000-7fb3b3ff3000 ---p 00018000 fd:03 147112 /lib/x86_64-linux-gnu/libpthread-2.23.so
7fb3b3ff3000-7fb3b3ff4000 r--p 00017000 fd:03 147112 /lib/x86_64-linux-gnu/libpthread-2.23.so
7fb3b3ff4000-7fb3b3ff5000 rw-p 00018000 fd:03 147112 /lib/x86_64-linux-gnu/libpthread-2.23.so
7fb3b3ff5000-7fb3b3ff9000 rw-p 00000000 00:00 0
7fb3b3ff9000-7fb3b401f000 r-xp 00000000 fd:03 147111 /lib/x86_64-linux-gnu/ld-2.23.so
7fb3b4210000-7fb3b4216000 rw-p 00000000 00:00 0
7fb3b421d000-7fb3b421e000 rw-p 00000000 00:00 0
7fb3b421e000-7fb3b421f000 r--p 00025000 fd:03 147111 /lib/x86_64-linux-gnu/ld-2.23.so
7fb3b421f000-7fb3b4220000 rw-p 00026000 fd:03 147111 /lib/x86_64-linux-gnu/ld-2.23.so
7fb3b4220000-7fb3b4221000 rw-p 00000000 00:00 0
7ffcc8f4c000-7ffcc8f6d000 rw-p 00000000 00:00 0 [stack]
7ffcc8fef000-7ffcc8ff2000 r--p 00000000 00:00 0 [vvar]
7ffcc8ff2000-7ffcc8ff4000 r-xp 00000000 00:00 0 [vdso]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall]
Signal:
Aborted