负整数文字 [英] negative integer literals

问题描述

是否有可能有负整数字面值或只有正数？


据我所知，下面的代码将是一个正整数

字面值和一元负数运算符。


x = -3.2;


谢谢，

Ivan
http://www.0x4849.net

解决方案

Ivan Novick写道：

你好，


是否有可能有负整数字面值或只有正数？


据我所知，下面的代码是一个正整数

字面值和一元负数运算符。


x = -3.2;


谢谢，

Ivan
http://www.0x4849.net

实际上，它是负*双*字面。

Ivan Novick写道：

是否可能有负整数字面上还是只有正面？


据我所知，下面的代码是一个正整数

字面值和一元负数运算符。


x = -3.2;

原谅我。它根本不是文字。它是一个表达式（未定义

类型，因为你没有定义x）。


-3.2是负双字面值。

red floyd写道：

....

>>

原谅我。它根本不是文字。这是一个表达式（未定义

类型，因为你没有定义x）。


-3.2是负双字面值。

我认为-3.2是双浮点文字。

Hi,

Is it possible to have negative integer literal or only positive?

As far as I understand, the code below would be a positive integer
literal and the unary negative operator.

x = -3.2;

Thanks,
Ivan
http://www.0x4849.net

解决方案

Ivan Novick wrote:

Hi,

Is it possible to have negative integer literal or only positive?

As far as I understand, the code below would be a positive integer
literal and the unary negative operator.

x = -3.2;

Thanks,
Ivan
http://www.0x4849.net

Actually, it''s a negative *double* literal.

Ivan Novick wrote:

Hi,

Is it possible to have negative integer literal or only positive?

As far as I understand, the code below would be a positive integer
literal and the unary negative operator.

x = -3.2;

Pardon me. It''s not a literal at all. It''s an expression (of undefined
type, since you don''t define x).

-3.2 is a negative double literal.

red floyd wrote:
....

>>

Pardon me. It''s not a literal at all. It''s an expression (of undefined
type, since you don''t define x).

-3.2 is a negative double literal.

I thought -3.2 was a double float literal.

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