这是 boost 库中的错误吗

Posted 2023-02-16

【中文标题】这是 boost 库中的错误吗

【英文标题】：Is this a bug in the boost library

【发布时间】：2017-01-21 09:57:20

【问题描述】：

我正在使用 autotools 编译一个项目，并在版本 gcc version 5.3.1 和 boost 版本 1_63 中使用 g++。在aclocal、autoconf、autoheader、automake --add-missing 之后，我用一些选项运行了configure，这些选项成功并构建了一个 Makefile。运行 make 失败并给我错误（摘录）：

In file included from /usr/local/include/boost/ratio/ratio.hpp:46:0,
             from /usr/local/include/boost/chrono/duration.hpp:41,
             from /usr/local/include/boost/chrono/time_point.hpp:33,
             from /usr/local/include/boost/thread/lock_types.hpp:22,
             from /usr/local/include/boost/thread/pthread/mutex.hpp:16,
             from /usr/local/include/boost/thread/mutex.hpp:16,
             from src/cosupport-initializer/cpp/BasicInitializer.cpp:39:
/usr/local/include/boost/integer_traits.hpp:83:46: error: 'CHAR_MIN' was not declared in this scope
public detail::integer_traits_base<char, CHAR_MIN, CHAR_MAX>
                                          ^
/usr/local/include/boost/integer_traits.hpp:83:56: error: 'CHAR_MAX' was not declared in this scope
public detail::integer_traits_base<char, CHAR_MIN, CHAR_MAX>
                                                    ^
/usr/local/include/boost/integer_traits.hpp:83:64: error: template argument 2 is invalid
public detail::integer_traits_base<char, CHAR_MIN, CHAR_MAX>
                                                            ^
/usr/local/include/boost/integer_traits.hpp:83:64: error: template argument 3 is invalid
/usr/local/include/boost/integer_traits.hpp:89:53: error: 'SCHAR_MIN' was not declared in this scope
public detail::integer_traits_base<signed char, SCHAR_MIN, SCHAR_MAX>
                                                 ^
/usr/local/include/boost/integer_traits.hpp:89:64: error: 'SCHAR_MAX' was not declared in this scope
 public detail::integer_traits_base<signed char, SCHAR_MIN, SCHAR_MAX>
                                                            ^
/usr/local/include/boost/integer_traits.hpp:89:73: error: template argument 2 is invalid
public detail::integer_traits_base<signed char, SCHAR_MIN, SCHAR_MAX>
                                                                     ^
/usr/local/include/boost/integer_traits.hpp:89:73: error: template argument 3 is invalid
/usr/local/include/boost/integer_traits.hpp:95:58: error: 'UCHAR_MAX' was not declared in this scope
public detail::integer_traits_base<unsigned char, 0, UCHAR_MAX>
                                                      ^
/usr/local/include/boost/integer_traits.hpp:95:67: error: template argument 3 is invalid
public detail::integer_traits_base<unsigned char, 0, UCHAR_MAX>
                                                               ^
/usr/local/include/boost/integer_traits.hpp:131:47: error: 'SHRT_MIN' was not declared in this scope
public detail::integer_traits_base<short, SHRT_MIN, SHRT_MAX>
                                           ^
/usr/local/include/boost/integer_traits.hpp:131:57: error: 'SHRT_MAX' was not declared in this scope
public detail::integer_traits_base<short, SHRT_MIN, SHRT_MAX>
                                                     ^
/usr/local/include/boost/integer_traits.hpp:131:65: error: template argument 2 is invalid
public detail::integer_traits_base<short, SHRT_MIN, SHRT_MAX>
                                                             ^
/usr/local/include/boost/integer_traits.hpp:131:65: error: template argument 3 is invalid
/usr/local/include/boost/integer_traits.hpp:137:59: error: 'USHRT_MAX' was not declared in this scope
public detail::integer_traits_base<unsigned short, 0, USHRT_MAX>
                                                       ^
/usr/local/include/boost/integer_traits.hpp:137:68: error: template argument 3 is invalid
public detail::integer_traits_base<unsigned short, 0, USHRT_MAX>
                                                                ^
/usr/local/include/boost/integer_traits.hpp:143:45: error: 'INT_MIN' was not declared in this scope
public detail::integer_traits_base<int, INT_MIN, INT_MAX>
                                         ^
/usr/local/include/boost/integer_traits.hpp:143:54: error: 'INT_MAX' was not declared in this scope
public detail::integer_traits_base<int, INT_MIN, INT_MAX>
                                                  ^
/usr/local/include/boost/integer_traits.hpp:143:61: error: template argument 2 is invalid
public detail::integer_traits_base<int, INT_MIN, INT_MAX>
                                                         ^
/usr/local/include/boost/integer_traits.hpp:143:61: error: template argument 3 is invalid
/usr/local/include/boost/integer_traits.hpp:149:57: error: 'UINT_MAX' was not declared in this scope
public detail::integer_traits_base<unsigned int, 0, UINT_MAX>
                                                     ^
/usr/local/include/boost/integer_traits.hpp:149:65: error: template argument 3 is invalid
public detail::integer_traits_base<unsigned int, 0, UINT_MAX>
                                                             ^
/usr/local/include/boost/integer_traits.hpp:155:46: error: 'LONG_MIN' was not declared in this scope
public detail::integer_traits_base<long, LONG_MIN, LONG_MAX>
                                          ^
/usr/local/include/boost/integer_traits.hpp:155:56: error: 'LONG_MAX' was not declared in this scope
public detail::integer_traits_base<long, LONG_MIN, LONG_MAX>
                                                    ^
/usr/local/include/boost/integer_traits.hpp:155:64: error: template argument 2 is invalid
public detail::integer_traits_base<long, LONG_MIN, LONG_MAX>
                                                            ^
/usr/local/include/boost/integer_traits.hpp:155:64: error: template argument 3 is invalid
/usr/local/include/boost/integer_traits.hpp:161:58: error: 'ULONG_MAX' was not declared in this scope
public detail::integer_traits_base<unsigned long, 0, ULONG_MAX>
                                                      ^
/usr/local/include/boost/integer_traits.hpp:161:67: error: template argument 3 is invalid
public detail::integer_traits_base<unsigned long, 0, ULONG_MAX>

这意味着例如在第 83 行的/usr/local/include/boost/integer_traits.hpp 中，构造函数初始化失败：

template<>
class integer_traits<char>
  : public std::numeric_limits<char>,
    public detail::integer_traits_base<char, CHAR_MIN, CHAR_MAX>
 ;

这意味着在文件/usr/local/include/boost/integer_traits.hpp 和包含在其中的标题中，没有CHAR_MIN 的定义。所以这是boost中的一个错误？或者我在这里错过了什么？

更新

相关代码摘录。搬家前：

#include <CoSupport/compatibility-glue/nullptr.h>
#include <CoSupport/Initializer/BasicInitializer.hpp>
#include <boost/thread/mutex.hpp>
#include <cassert>

namespace CoSupport 
...

搬家后：

#include <boost/thread/mutex.hpp>
#include <CoSupport/compatibility-glue/nullptr.h>
#include <CoSupport/Initializer/BasicInitializer.hpp>
#include <cassert>

namespace CoSupport 
...

【问题讨论】：

向我们展示实际的源代码。如果将 #include 从第 39 行移到第 1 行会发生什么？

还是同样的错误。我把它放在第一行（在 cmets 之后）：from src/cosupport-initializer/cpp/BasicInitializer.cpp:35: /usr/local/include/boost/integer_traits.hpp:83:46: error: 'CHAR_MIN' was not declared in this scope public detail::integer_traits_base<char, CHAR_MIN, CHAR_MAX>

那么这看起来像一个错误，因为 Boost 违反了每个标头应该包含它需要的所有其他标头的原则。你之前#include <limits.h>的时候，有用吗？

但是等等，boost.org/doc/libs/1_59_0/boost/limits.hpp 已经包含了<limits>，所以肯定有其他问题。检查是否定义了任何与现有头文件冲突的头文件。

@RolandIllig 定义 CHAR_MIN,MAX 的不是<limits>，而是<climits>。似乎是 boost 中的一个错误。

【参考方案1】：

这意味着在文件/usr/local/include/boost/integer_traits.hpp 和包含在其中的标题中，没有CHAR_MIN 的定义

应该是这样 - CHAR_MIN 在 <climits> 中定义。

所以这是 boost 中的一个错误？或者我在这里错过了什么？

有 99% 的把握，这不是 boost 中的错误。您可能有一些您自己的包含文件，在您的项目的包含目录中，掩蔽climits 或limits.h，或者可能是interger_traits.hpp 包含的另一个文件，它本身包含climits 或limits.h。