[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] 
The system unit
The system unit contains the standard supported functions of Free Pascal. It is the same for all platforms. Basically it is the same as the system unit provided with Borland or Turbo Pascal.
Functions are listed in alphabetical order. Arguments of functions or procedures that are optional are put between square brackets.
The predefined constants and variables are listed in the first section. The second section contains an overview of all functions, grouped by functionality, and the last section contains the supported functions and procedures.

Unicode and codepage support 


Miscellaneous functions 


Operating System functions 


String handling 


Mathematical routines 


Memory management functions 


File handling functions 


RunTime Error behaviour 