GCC编译器警告：扩展初始化程序列表仅在c ++ 0x中可用 [英] GCC Compiler Warning: extended initializer lists only available with c++0x

问题描述

  StatsScreen :: StatsScreen（GameState :: State level）
： m_Level（level）{
 ... // 
} 
  

我得到以下警告......

$ 扩展初始化程序列表仅适用于-std = c ++ 0x或-std = gnu ++ 0x

有关此警告的任何信息？

编辑：删除后警告消失的成员在构造函数中赋值（无法通过成员初始化完成），并将其设置为局部变量而不是类成员。我想你是用 {0}来初始化对象的， ...} 而不是（...）：

  StatsScreen ss {...}; //仅在C ++中有效0x 
 StatsScreen ss（...）; //在C ++ 98中确定
  

要将代码编译为C ++ 0x代码，只需添加编译时出现以下标志：

  g ++ test.cpp -std = c ++ 0x 
  

Using this member initialization...

StatsScreen::StatsScreen( GameState::State level )
    : m_Level( level ) {
  ...//
}

I get the following warning...

extended initializer lists only available with -std=c++0x or -std=gnu++0x

Any information regarding this warning?

Edit: Warning went away after I removed one of the member that was assigned to a value inside the constructor (couldn't be done through member initialization) and made it a local variable instead of a class member. Still want to know what that warnings means though.

解决方案

I think you are initializing the object with {...} instead of (...):

StatsScreen ss{...}; // only available in C++0x
StatsScreen ss(...); // OK in C++98

To compile your code as C++0x code, just add the following flag when compiling:

g++ test.cpp -std=c++0x

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