Notes
This function is in beta test. Please help improve it in the issues
here.
================================================================= ==24674==ERROR: AddressSanitizer: heap-use-after-free on address 0x6030000000a0 at pc 0x55a5d112208c bp 0x7ffe9fede8b0 sp 0x7ffe9fede8a0 WRITE of size 8 at 0x6030000000a0 thread T0 #0 0x55a5d112208b in Dlist<int>::removeBack() (/out/package/dlist_mem+0x608b) #1 0x55a5d111f93e in case3() (/out/package/dlist_mem+0x393e) #2 0x55a5d111e847 in main (/out/package/dlist_mem+0x2847) #3 0x7f0458c73b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96) #4 0x55a5d111f0b9 in _start (/out/package/dlist_mem+0x30b9) 0x6030000000a0 is located 0 bytes inside of 24-byte region [0x6030000000a0,0x6030000000b8) freed by thread T0 here: #0 0x7f04596c59c8 in operator delete(void*, unsigned long) (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xe19c8) #1 0x55a5d1122523 in Dlist<int>::removeFront() (/out/package/dlist_mem+0x6523) #2 0xfffd3fdbd39 (<unknown module>) previously allocated by thread T0 here: #0 0x7f04596c4448 in
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.