Error: attempt to subscript container with out-of-bounds index 0

[phoe]

Built on debian sid. Trying to run the resulting binary gives me:

/usr/include/c++/8/debug/vector:417:
Error: attempt to subscript container with out-of-bounds index 0, but 
container only holds 0 elements.

Objects involved in the operation:
    sequence "this" @ 0x0x55ed94072420 {
      type = std::__debug::vector<int, std::allocator<int> >;
    }
Aborted

This happens both in release and debug builds.

[ciplogic]

May you give a full stack?

[phoe]

How do I produce it?

[ciplogic]

For example running in GDB:

https://cs.baylor.edu/~donahoo/tools/gdb/tutorial.html

[ciplogic]

Also, after running using 'run' in gdb you have multiple options:

https://stackoverflow.com/questions/7848771/how-can-one-see-content-of-stack-with-gdb

[phoe]

┌─[phoe][phoetower][±][master ?:4 ✗][/tmp/fheroes2enh]
└─▪ gdb fheroes2
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For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from fheroes2...done.
(gdb) (run)
Undefined command: "".  Try "help".
(gdb) run
Starting program: /tmp/fheroes2enh/fheroes2 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
/usr/include/c++/8/debug/vector:417:
Error: attempt to subscript container with out-of-bounds index 0, but 
container only holds 0 elements.

Objects involved in the operation:
    sequence "this" @ 0x0x55555ca852c0 {
      type = std::__debug::vector<int, std::allocator<int> >;
    }

Program received signal SIGABRT, Aborted.
__GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
50	../sysdeps/unix/sysv/linux/raise.c: Nie ma takiego pliku ani katalogu.
(gdb) bt
#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#1  0x00007ffff6083535 in __GI_abort () at abort.c:79
#2  0x00007ffff6f6e77d in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#3  0x00005555582f12e1 in std::__debug::vector<int, std::allocator<int> >::operator[] (
    this=0x55555ca852c0 <(anonymous namespace)::pathPointsMap2>, __n=0) at /usr/include/c++/8/debug/vector:417
#4  0x0000555558d664b1 in (anonymous namespace)::PathMap::clear (
    this=0x55555ca852c0 <(anonymous namespace)::pathPointsMap2>)
    at /tmp/fheroes2enh/src/fheroes2/heroes/route_pathfind.cpp:254
#5  0x0000555558d66c72 in (anonymous namespace)::PathMap::PathMap (
    this=0x55555ca852c0 <(anonymous namespace)::pathPointsMap2>, sizePow2=10)
    at /tmp/fheroes2enh/src/fheroes2/heroes/route_pathfind.cpp:261
#6  0x0000555558d75321 in __static_initialization_and_destruction_0 (__initialize_p=1, __priority=65535)
    at /tmp/fheroes2enh/src/fheroes2/heroes/route_pathfind.cpp:302
#7  0x0000555558d75356 in _GLOBAL__sub_I__Z16GetCurrentLengthRNSt7__debug3mapIi6cell_tSt4lessIiESaISt4pairIKiS1_EEEEi
    () at /tmp/fheroes2enh/src/fheroes2/heroes/route_pathfind.cpp:434
#8  0x0000555559258f15 in __libc_csu_init ()
#9  0x00007ffff608502a in __libc_start_main (main=0x5555589d671c <main(int, char**)>, argc=1, argv=0x7fffffffe598, 
    init=0x555559258ed0 <__libc_csu_init>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffe588)
    at ../csu/libc-start.c:264
#10 0x0000555557ecd3ea in _start ()
(gdb) 

[ciplogic]

It looks you start a game and right after it loads the map it fails with pathfinding.... is it correct?

Did you try to load a map or something?

[phoe]

No, it does not even display any GUI. It crashes straight after running.

[kamiccolo]

This is weird. Is Your Debian set-up is different from default in any way? gcc/glibc version? I'll try it out on my Debian machine later.

[phoe]

I don't think so. I haven't done any weird modifications.

┌─[phoe][phoetower][~]
└─▪ ldd --version
ldd (Debian GLIBC 2.28-5) 2.28