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【2.1节 常量】nullptr 增改示例代码 #132

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sunshaoce opened this issue Oct 2, 2020 · 1 comment · Fixed by #133
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【2.1节 常量】nullptr 增改示例代码 #132

sunshaoce opened this issue Oct 2, 2020 · 1 comment · Fixed by #133
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@sunshaoce
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动机

增改一点示例代码，以拓宽示例的适配范围。

需求说明

  if (std::is_same<decltype(NULL), decltype(0)>::value)
    std::cout << "NULL == 0" << std::endl;

因为在Ubuntu 18.04环境下的clang++是long类型。我这里提供一个简单的思路，不过实现肯定不够优雅简洁。

  if (std::is_same<decltype(NULL), decltype(0)>::value ||
      std::is_same<decltype(NULL), decltype(0L)>::value)
    std::cout << "NULL == 0" << std::endl;
@changkun
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changkun commented Oct 2, 2020

PR welcome

@sunshaoce sunshaoce mentioned this issue Oct 3, 2020
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changkun added a commit that referenced this issue Oct 20, 2020
@changkun
book: remove nullptr 0L condition
0f8819f 
This is a bug introduced in #132.

Fixes #136
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增改示例的适配范围
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@changkun @sunshaoce