Notes
This function is in beta test. Please help improve it in the issues
here.
=================================================================
==312==ERROR: AddressSanitizer: heap-use-after-free on address 0x603000000048 at pc 0x5601d91782a9 bp 0x7ffd1c13a650 sp 0x7ffd1c13a640
READ of size 8 at 0x603000000048 thread T0
#0 0x5601d91782a8 in Dlist<double>::removeBack() (/out/package/dlist_mem+0x52a8)
#1 0x5601d91757ed in case0() (/out/package/dlist_mem+0x27ed)
#2 0x5601d9175197 in main (/out/package/dlist_mem+0x2197)
#3 0x7fcf6a76cb96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#4 0x5601d9175599 in _start (/out/package/dlist_mem+0x2599)
0x603000000048 is located 8 bytes inside of 24-byte region [0x603000000040,0x603000000058)
freed by thread T0 here:
#0 0x7fcf6b1be9c8 in operator delete(void*, unsigned long) (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xe19c8)
#1 0x5601d91757c5 in case0() (/out/package/dlist_mem+0x27c5)
#2 0x5601d917b043 in _IO_stdin_used (/out/package/dlist_mem+0x8043)
previously allocated by thread T0 here:
#0 0x7fc
Hints
Your answer may be identical to the JOJ answer in the first several lines.
However, the main problem you meet now is Runtime Error. And the exit code of your program is 1, which should be 0.
Please double check your code to solve this problem and try again.
Your Answer
JOJ Answer
Test success.