Difference between revisions of "Mode ObjFPC"
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#The [[Objpas]] unit is loaded right after the system unit. One of the consequences of this is that the type Integer is redefined as [[Longint]]. | #The [[Objpas]] unit is loaded right after the system unit. One of the consequences of this is that the type Integer is redefined as [[Longint]]. | ||
#The [[cvar]] type may be used. | #The [[cvar]] type may be used. | ||
− | #[[PChar]]s are converted to [[string]]s automatically. | + | #[[PChar]]s are converted to [[String|string]]s automatically. |
#Parameters in class methods cannot have the same names as class properties. | #Parameters in class methods cannot have the same names as class properties. | ||
#Strings are [[shortstring]]s by default. This may be changed by using the -Sh command line switch or the {$H+} switch. | #Strings are [[shortstring]]s by default. This may be changed by using the -Sh command line switch or the {$H+} switch. | ||
[[Category:Modes]] | [[Category:Modes]] |
Revision as of 02:07, 27 October 2015
The mode ObjFPC, switched on with {$mode objfpc}, is the default mode for Lazarus source files.
Using the ObjFPC mode has the following consequences:
- The address operator has to be used to assign procedural variables.
- A forward declaration must be repeated exactly the same by the implementation of a function/procedure. In particular, the parameters cannot be omitted when implementing the function or procedure, and the calling convention must be repeated as well.
- Overloading of functions is allowed.
- Nested comments are allowed.
- The Objpas unit is loaded right after the system unit. One of the consequences of this is that the type Integer is redefined as Longint.
- The cvar type may be used.
- PChars are converted to strings automatically.
- Parameters in class methods cannot have the same names as class properties.
- Strings are shortstrings by default. This may be changed by using the -Sh command line switch or the {$H+} switch.