Focus on the details of C ++ -- getting parameters of Variable Parameter Functions

Source: Internet
Author: User

The va_listva_startva_endva_arg Variable Parameter Function mainly relies on these functions to obtain parameters. These four functions are in cstdarg or stdarg. in the h package, you can use Baidu. For example, [cpp] # include <iostream >#include <cstdarg> using namespace std; int print (char * start ,...) {va_list args; char * tmp = start; va_start (args, start); // Author Blog: http://blog.csdn.net/IAccepted do www.2cto.com {cout <tmp <endl; tmp = va_arg (args, char *);} while (tmp! = NULL); va_end (args); return 0;} int main () {print ("1", "2", "3", "4", "5 ", "6", "7", "8", NULL); // Author Blog: http://blog.csdn.net/IAccepted return 0;} The get parameter operation must be included between va_start and va_end

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