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- test_preload.c: @file main.c -> @file test_preload.c
- show_alloc_mem.c, test_preload.c: hex array -> static const
- show_alloc_mem.c, test_preload.c, test_random.c: use size_t
for sizeof-derived indices instead of casting to int
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realloc returns the same pointer if the chunk is large enough,
otherwise malloc + memcpy + free. The random test now verifies
data integrity after resizing across all three categories.
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test_random allocates N blocks per category (TINY/SMALL/LARGE)
with random sizes, fills them with a deterministic pattern, and
verifies the data. Run with system malloc and LD_PRELOAD to
compare output. Seed and count are parameterized via argv.
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Implement show_alloc_mem() to print all zones and allocations
by ascending address. Add test_show binary that links directly
against libft_malloc.so to exercise it.
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Build system produces libft_malloc_$HOSTTYPE.so shared library with
Libft (NOMALLOC=1) as dependency. Stub functions print their name
and return NULL. Test runner compares system malloc vs LD_PRELOAD
output using write(2) to avoid stdio interference.
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