[Solved] Valgrind detects memory leak, can’t find it C

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Your initDictionary doesn’t return the pointer dictionary anywhere.

That means when you do

Dictionary* dictionary = initDictionary();

the value of dictionary will be indeterminate (seemingly random or garbage), and dereferencing this pointer or passing it to free will result in undefined behavior.

You solve this by adding a simple

return dictionary;

at the end of the initDictionary function.

If your compiler doesn’t warn you about not returning anything from the function, you need to enable more verbose warnings. Using gcc or clang I recommend the options -Wall -Wextra -Wpedantic when building. For MSVC use /W4.

solved Valgrind detects memory leak, can’t find it C