operator new（）和new [] [英] operator new() and new[]
问题描述
是否有任何区别
------ 1 ------
Foo * p = operator new（n * sizeof（Foo））;
//东西
删除p;
-------------- -
和
------ 2 ------
Foo * p = new [n];
//东西
删除[] p;
------------ ---
？
Alex Vinokur
电子邮件：alex DOT vinokur AT gmail DOT com
http://mathforum.org/library/view/10978.html
http://sourceforge.net/users/alexvn
Is the any difference between
------ 1 ------
Foo* p = operator new (n * sizeof (Foo));
// Stuff
delete p;
---------------
and
------ 2 ------
Foo* p = new [n];
// Stuff
delete[] p;
---------------
?
Alex Vinokur
email: alex DOT vinokur AT gmail DOT com
http://mathforum.org/library/view/10978.html
http://sourceforge.net/users/alexvn
推荐答案
嗨Alex，据我所知，变量名称和
之间没有括号的区别与声明变量分别是
使用数组接受单个值和多个值。
这个a新的和删除声明也是如此。
纠正我，如果我错了
Hi Alex, to my knowledge the difference between variable names with and
without brackets has to do with declaring variables which respectively
accept a single value and multiple values usings arrays .
This also is the case with the new and delete statements.
Correct me if i''m wrong
Alex Vinokur写道：
Alex Vinokur wrote:
是否有任何区别
------ 1 ------
Foo * p = operator new（n * sizeof（Foo））;
//东西
删除p;
---------------
和
------ 2 ------
Foo * p = new [n];
//东西
删除[] p;
---------------
？
Is the any difference between
------ 1 ------
Foo* p = operator new (n * sizeof (Foo));
// Stuff
delete p;
---------------
and
------ 2 ------
Foo* p = new [n];
// Stuff
delete[] p;
---------------
?
是的，绝对的。前者不应该编译。
V
-
请在邮寄回复时从我的地址中删除资金
Yes, abslutely. The former shouldn''t compile.
V
--
Please remove capital As from my address when replying by mail
Leander de Graaf写道：
Leander de Graaf wrote:
嗨Alex，据我所知，变量名与
和无括号之间的区别必须要做声明使用数组分别接受单个值和多个值的变量。
新的和删除语句也是如此。
如果我是正确的我错误
Hi Alex, to my knowledge the difference between variable names with
and without brackets has to do with declaring variables which
respectively accept a single value and multiple values usings arrays .
This also is the case with the new and delete statements.
Correct me if i''m wrong
你错了。你误读了OP的代码。请再次阅读第一部分
。
V
-
请删除资金As通过邮件回复我的地址
You''re wrong. You misread the OP''s code. Please read the first part
again.
V
--
Please remove capital As from my address when replying by mail
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