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Given an array map with size of 256, what is the best way to initialize it so that each element is false?
bool map[256];
for (int i=0; i<256; i++)
{
map[i] = false;
}
Thank you
620
There are two ways to specify initializers for arrays: With C89-style initializers, array elements must be initialized in subscript order. Using designated initializers, which allow you to specify the values of the subscript elements to be initialized, array elements can be initialized in any order.
In visual basic, Arrays can be initialized by creating an instance of an array with New keyword. By using the New keyword, we can declare and initialize an array at the same time based on our requirements.
Initializer List: To initialize an array in C with the same value, the naive way is to provide an initializer list. We use this with small arrays. int num[5] = {1, 1, 1, 1, 1}; This will initialize the num array with value 1 at all index.
Even if you do not initialize the array, the Java compiler will not give any error. Normally, when the array is not initialized, the compiler assigns default values to each element of the array according to the data type of the element.
bool map[256] = { false };
edit: for a reference to the standard as to why this is legal, see the answers below.
176
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