I am looking through some C source code and I don\'t understand the following part #if 1 typedef unsigned short PronId;
What\'s the meaning of #line in the C language? Where woul开发者_Python百科d it be used?It tells the compiler where the following line actually came from. It\'s usually only the C preprocessor that ad
I have the following code #define PROC_ADD void main(void) { while(1) { #ifdef PROC_ADD // Do this code here then undefined it to run the code in the else
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