WHY this code not error

[zdj229]

Highest(NULL, 0, MODE_HIGH,100, 1)?

 

the Highest is not a fuction,but the code can compile sucess,why

[onewithzachy]

zdj229:

the Highest is not a fuction,but the code can compile sucess,why

Hi zdj229,

It's an obsolete function, it's explanation available at MetaEditor or here https://docs.mql4.com/obsolete

Here's another example https://www.mql5.com/en/forum/140515