Notes
This function is in beta test. Please help improve it in the issues
here.
=================================================================
==32521==ERROR: AddressSanitizer: heap-use-after-free on address 0x602000000010 at pc 0x561c23bd657f bp 0x7ffc5981aef0 sp 0x7ffc5981aee0
READ of size 4 at 0x602000000010 thread T0
#0 0x561c23bd657e in case4() (/out/package/dlist_mem+0x1557e)
#1 0x561c23bd4071 in main (/out/package/dlist_mem+0x13071)
#2 0x7f2e456d4b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#3 0x561c23bd4619 in _start (/out/package/dlist_mem+0x13619)
0x602000000010 is located 0 bytes inside of 4-byte region [0x602000000010,0x602000000014)
freed by thread T0 here:
#0 0x7f2e46e479c8 in operator delete(void*, unsigned long) (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xe19c8)
#1 0x561c23bd63c1 in case4() (/out/package/dlist_mem+0x153c1)
#2 0x60300000006f (<unknown module>)
previously allocated by thread T0 here:
#0 0x7f2e46e46448 in operator new(unsigned long) (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xe0448)
#1 0x561c23bd605
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.