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Tip of the Day
Home » Tip Bank » C++
Language: C++
Expertise: All
Jan 20, 1999



Application Security Testing: An Integral Part of DevOps

Initializing a Union

It is possible to initialize a union. Yet, unlike struct initialization, the initialization list of a union must contain a single initializer that refers to the first member in the union:
union Key { 
  int num_key;
  void *ptr_key;
  char  name_key[10];
Key a_key = {5}; //first member of Key is of type int; all other bytes are initialized to binary zeroes
Danny Kalev
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