How to know whether an array is initialized in C ? Functions like strlen() are not helping me as I dont want to know whether the array is empty or not.
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How to know whether an array is initialized in C ? Functions like strlen() are not helping me as I dont want to know whether the array is empty or not.
There’s no way to test that at runtime — an uninitialized array looks just like one that has been initialized with garbage.
Depending on what you’re doing, you need either to make sure the array is actually initialized or explicitly pass around a flag that tells you whether the values in the array are meaningful yet.
Also note that “whether the array is empty” is not a very meaningful concept in C. The array is just there, and it always contains whatever number of bits are necessary to represent the elements it’s declared to have. Those bits may not have meaningful values, but the’re always there.