Fast, Efficient and Easy Way to Initialize Local ArraysBy default, local data arrays created on the stack are not initialized; they contain garbage values. The easiest, most efficient and future-proof way to initialize them is as follows:

 	void f() {		char  name[100] = {0};  //all members initialized to ''		float farr[1024] = {0}; //all members initialized to 0.0		int   iarr[9999] = {0}; //all members initialized to 0.0		void *pvarr[100] = {0};//all members initialized to NULL	}//f()

And it even works for arrays of structs:

 	struct A { char name[20]; 			int age; /*other members*/ 		  };	void f() {		A a[100] = {0};		//...	}//f()

The only exception is arrays of objects, which cannot be initialized like this if they have a user-defined constructor.