如何使`new []`默认初始化原始类型数组?
我不时需要为内置类型(通常是 char
)调用 new[]
.结果是一个具有未初始化值的数组,我必须使用 memset()
或 std::fill()
来初始化元素.
Every now and then I need to call new[]
for built-in types (usually char
). The result is an array with uninitialized values and I have to use memset()
or std::fill()
to initialize the elements.
如何使 new[]
默认初始化元素?
How do I make new[]
default-initialize the elements?
推荐答案
int* p = new int[10]()
应该可以.
但是,作为 Michael 指出,使用 std::vector
会更好.
However, as Michael points out, using std::vector
would be better.
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