It is, however, recommended that you define the macro on the command-line, so you are absolutely certain that all headers are compiled the same way.
不过，建议你在命令行定义这个宏，这样你可以确保所有头文件以相同方式编译。
Define a database variable initially within the macro to tell it which database to connect to.
在宏内开头定义DATABASE变量告诉它要连接到哪一个数据库。
We also define a macro INBUFSIZ, which is the size of a character array used as a buffer while reading the input.
我们还定义了宏inbufsiz，它是在读取输入时用作缓冲区的字符数组的大小。
Listing 7 shows the macro definition to define math symbols using these functions.
清单7给出的宏定义使用这些函数定义了算术符号。
On top of these register #define macros, you should also define another macro that dictates whether the ISR will run in simulation mode or in the original interrupt context. For example
在这些寄存器的 #define宏前面，还应该定义另外一个宏，它用来说明 ISR 是在模拟模式中运行还是在原来的中断上下文中运行的。
Because the entry and exit functions are user-defined, a module_init and module_exit macro exist to define which functions these are.
因为entry和exit函数是用户定义的，所以存在module_init和module_exit宏，用于定义这些函数属于哪种函数。
We then use the def macro to define a constant called big-num-str.
之后，使用def宏来定义一个常量，称为big - num - str。
In a syntax-rules macro, define-syntax is the keyword used to define a macro transformation.
在syntax - rules宏中，define - syntax是用来定义宏转换的关键字。
The macro components define the overall flow and time-sequenced framework for performing work.
宏观成份规定了实行工作的整个流程和时序框架。
If you do not define this macro, the default is that only the character '; 'is treated as a logical line separator.
如果不定义这个宏，则默认只有‘；’可以作为逻辑行分隔符。
If you do not define this macro, the usual case, GCC will output the constant pool before the function.
如果没有定义这个宏，在通常情况下，GCC会在函数之前输出。
The DISP_FUNCTION macro is used in a dispatch map to define an OLE automation function.
这是一个宏，用于调度映射中定义一个OLE自动化函数。
The DISP_FUNCTION macro is used in a dispatch map to define an OLE automation function.
这是一个宏，用于调度映射中定义一个OLE自动化函数。
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