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Initializing pointer arrays to NULL within a struct

An object of any type can be initialized to zero:

struct A myA = { 0 };

This initializes the first scalar member or element (defined recursively for nested arrays, structures, and unions) to 0 converted to the appropriate type, which is a null pointer value if it's a pointer. All remaining members or elements are also initialized to zero.

Some compilers may warn you about the missing initializers; since = { 0 } is, or should be a common idiom for "initialize everything to zero", you can ignore the warning.

Categories : C

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