非标准函数返回类型：固定夹板解析错误

问题描述

我使用的是嵌入式系统XC8 C编译器（用于PIC微处理器）。以下是允许的：

 位富（）{
    // ...
}
 

但作为非标C，夹板静态分析仪提供了以下错误：

And the file/line of the error is the function prototype in the respective .h file.

How can I fix this so Splint can analyse the rest of the file(s)? I think there might be two ways:

1. I think I remember seeing a flag which can be passed to Splint via CLI which tells it to substitute a given non-standard type to a standard type (e.g. bit to unsigned char) but I can't seem to find it at all now!

2. Also, perhaps there is an alternative way to write the c code that satisfies ANSI-C requirements while also still allowing XC8 to interpret the return type as bit?

Progress:

I found the following on a forum, but I can't find information on how to use the -D flag in the manual:

And

解决方案

If there's no option for the analysis program to do the substitution, you can of course do it using the preprocessor.

Have something like:

#if defined RUNNING_SPLINT
#define bit unsigned char
#endif

in e.g. a header that you make sure is included everywhere, enter code hereand make sure you define the pre-processor symbol RUNNING_SPLINT when Splint sees the code. It has a -D flag for this.

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