Nothing类 参考

详细描述

Represents non-typed absent value.

Can be casted to any

参见

Maybe<T> resulting in Maybe with absent value.

Contains reason for absence as a regular C string.

在文件 maybe.h 第 21 行定义.

Public 成员函数
	Nothing (const char *reason="no specific reason")
	Nothing (const Nothing &other)

Public 属性
const char *	m_absence_reason

构造及析构函数说明

Nothing

(

const char *

reason = "no specific reason"

)

Createst an instance of nothing aka absent value.

参数

reason

the reason something is absent

在文件 maybe.h 第 28 行定义.

Nothing

(

const Nothing &

other

)

Copies nothing from nothing, inheriting absence reason.

参数

other

other instance of nothing

在文件 maybe.h 第 36 行定义.

类成员变量说明

const char* m_absence_reason

Represents a reason why something is absent. Memory is not managed.

在文件 maybe.h 第 43 行定义.

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该类的文档由以下文件生成:

• maybe.h