system下的_LStrFromPChar,_WStrFromPChar,_LStrCopy 对应在哪个system过程?(50分)

_LStrFromPChar,_WStrFromPChar,_LStrCopy
这三个函数我在System中找了半天也没发现它们对应哪个过程？
请熟悉system单元的朋友说告一声！

在编译器内部。System.pas 中声明的前面有一句：
(以下的) Procedures and functions that need compiler magic .
而 System.pas 的最前面有一段话：
(这个单元是用来)
{ Predefined constants, types, procedures, }
{ and functions (such as True, Integer, or }
{ Writeln) do not have actual declarations.}
{ Instead they are built into the compiler }
{ and are treated as if they were declared }
{ at the beginning of the System unit. }

多人接受答案了。