Memory problem(?) | Together C & C++ | Page 1

kindred radishBOT May 12, 2024, 4:59 AM

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violet plank May 12, 2024, 5:46 AM

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almost 300 LINES????????????????????????

signal bear May 12, 2024, 6:00 AM

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violet plank almost 300 LINES????????????????????????

uhh i send the whole code without i cut the unused one sorry

kindred radishBOT May 12, 2024, 6:07 AM

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@signal bear

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rapid yarrow May 12, 2024, 6:11 AM

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One problem I see is in viewAll() you define char *prefix and never give it a value but then call searchDFS(root, prefix, 0); with the un-initialized pointer as the second argument. searchDFS then attempts to realloc this unassigned pointer.

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==61301==ERROR: AddressSanitizer: attempting free on address which was not malloc()-ed: 0x7fffffffe4a0 in thread T0
    #0 0x7ffff765cc38 in __interceptor_realloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:164
    #1 0x55555555bc5a in searchDFS(node*, char*, int) testfoo.cpp:155
    #2 0x55555555c738 in viewAll() testfoo.cpp:300
    #3 0x55555555c9a4 in main testfoo.cpp:342
    #4 0x7ffff6a40d8f in __libc_start_call_main ../sysdeps/nptl/libc_start_call_main.h:58
    #5 0x7ffff6a40e3f in __libc_start_main_impl ../csu/libc-start.c:392
    #6 0x55555555a444 in _start (testfoo+0x6444)

#Memory problem(?)