如何修复警告：在初始化程序周围丢失大括号？

问题描述

警告是由vala生成的c代码产生的。

代码有效，但警告很烦人。警告引用的vala代码是：

  struct Position {uint x; uint y;} 
 private static Position positions [8]; 
  

生成的C代码是

  static Position det_positions [8] = {0}; 
  

我尝试了六种不同方式的初始化位置，但似乎无法获得语法满足警告。这是还是有办法解决它？

解决方案

是的，这似乎与。如果将C声明更改为 {{0}} ，它就会消失。您的选择是：

1. 忽略警告。


2. 操作C代码后生成 {{0}} 而不是 {0} 使用 sed 等。


3. 在Vala中声明数组 extern ，并在别处写入C定义。 （＃2的永久版本。）


4. 做一些像 struct foo {int bar;职位[8]; } static foo position_holder 和 {0} 然后会初始化 position_holder.bar ，它是罚款和警告消失。

The warning is produced by the c code generated by vala.

The code works but the warning is annoying. The vala code referenced by the warning is

struct Position {uint x; uint y;}
private static Position positions[8];

The generated C code is

static Position det_positions[8] = {0};

I've tried initializing positions half a dozen different ways but can't seem to get the syntax to satisfy the warning. Is this GCC bug 53119 or is there a way to fix it?

解决方案

Yes, this appears to be related to GCC bug 53119. It goes away if you change the C declaration to {{0}}. Your options are:

1. Ignore the warning.
2. Manipulate the C code after generation to have {{0}} instead of {0} on that line using sed or the like.
3. Declare the array extern in Vala, and write the C definition elsewhere. (The permanent version of #2.)
4. Do something like struct foo { int bar; Position positions[8]; } static foo position_holder and {0} will then be initialising position_holder.bar which is fine and the warning goes away.

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