Difference between revisions of "Mode ObjFPC"
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The mode '''ObjFPC''', switched on with '''{$mode objfpc}''', is the default mode for [[Lazarus]] source files. | The mode '''ObjFPC''', switched on with '''{$mode objfpc}''', is the default mode for [[Lazarus]] source files. | ||
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#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. | ||
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Revision as of 14:18, 12 November 2016
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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.