b*****d
发帖数: 23 | 1 int *p = new int;
int *q = new int();
这两个有啥区别？ 为什么？
A* pp = new A;
A* qq = new A();
为什么这两个就没区别了呢？
糊涂了。。。请大牛指教。 | t****t
发帖数: 6806 | 2 int *p=new int; // *p is indeterminated
int *q=new int(); // *q is 0
for (class type) A, A has constructor, it is called anyway, so there's no
difference.
See C++ Standard 5.3.4, Clause 15.
【在 b*****d 的大作中提到】
: int *p = new int;
: int *q = new int();
: 这两个有啥区别？ 为什么？
: A* pp = new A;
: A* qq = new A();
: 为什么这两个就没区别了呢？
: 糊涂了。。。请大牛指教。
| c**a
发帖数: 316 | 3 I see.
谢谢大牛。
【在 t****t 的大作中提到】
: int *p=new int; // *p is indeterminated
: int *q=new int(); // *q is 0
: for (class type) A, A has constructor, it is called anyway, so there's no
: difference.
: See C++ Standard 5.3.4, Clause 15.
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