MLMARK (C 函数)
MLMARK 已经被 WSMARK 所取代.
是一个表示在表达式流中的标记的 MathLink 类型.
范例
基本范例 (1)
#include "mathlink.h"
/* look ahead in the expression stream on a link and reset */
void f(MLINK lp)
{
MLMARK mark;
mark = MLCreateMark(lp);
if(mark == (MLMARK)0)
{ /* unable to create mark in the stream on lp */ }
/* now peek ahead and see what is coming */
switch(MLGetNext(lp))
{
case MLTKINT:
/* integer data */
case MLTKREAL:
/* floating-point data */
}
/* now restore to the original point */
mark = MLSeekToMark(lp, mark, 0);
if(mark == (MLMARK)0)
{ /* unable to seek to the mark position in lp */ }
MLDestroyMark(lp, mark);
}