如何修复 Arduino error: 'size_t' has not been declared

问题：

在 Arduino 中，你看到类似这样的错误消息

compile_error.txt

src/main.cpp:7:48: error: 'size_t' has not been declared
void MyFunction(size_t size);

src/main.cpp:7:48: error: 'size_t' has not been declared
void MyFunction(size_t size);

包含声明 size_t 的 stddef.h：

include_stddef.h

#include <stddef.h>

#include <stddef.h>

将此行添加到错误发生的文件顶部。

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