2024-03-15 04:35:27 -04:00
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GCC
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***
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2024-03-25 05:45:19 -04:00
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:link_to_translation:`en:[English]`
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常见的移植问题及解决方法
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=================================
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``sys/dirent.h`` 不再包含一些函数原型
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-------------------------------------------------------
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问题
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^^^^^^
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使用旧工具链的代码可能会出现编译错误。例如：
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.. code-block:: c
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#include <sys/dirent.h>
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/* .... */
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DIR* dir = opendir("test_dir");
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/* .... */
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/**
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* Compile error:
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* test.c: In function 'test_opendir':
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* test.c:100:16: error: implicit declaration of function 'opendir' [-Werror=implicit-function-declaration]
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* 100 | DIR* dir = opendir(path);
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* | ^~~~~~~
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*/
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解决方法
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^^^^^^^^^
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包含正确的头文件即可解决此问题。请将代码重构如下：
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.. code-block:: c
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#include <dirent.h>
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/* .... */
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DIR* dir = opendir("test_dir");
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