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freepascal error in type definition Santa Maria, Texas

arg1: Got "arg2" expected "(not packed) Array" The compiler expects a regular (i.e., not packed) array as the specified parameter. This will allocate space, and call the constructor of the class. An exception of this rule is when inheriting an Object Pascal class helper from another class helper. implicitly initialized by the compiler, this might be intended behaviour and does not necessarily mean that the code is wrong.

type PForwardDef = ^TForwardDef; TForwardDef = object(TDef) toSymName: String; // The symbol name for this forward declaration // (the actual real definition does not exist yet) ForwardPos: TFilePosInfo; // Indicates file If you use an untyped pointer you should use GetMem instead of New. Likewise, in units, you cannot have a forward declared function of a function that has been declared in the interface part. Warning: Local variable "arg1" of a managed type does not seem to be initialized This message is displayed if the compiler thinks that a variable will be used (i.e.

share|improve this answer answered Jun 27 '11 at 12:48 David Heffernan 430k27585952 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google constructors and destructors must be methods You're declaring a procedure as destructor or constructor, when the procedure isn't a class method. See the switch -Ss (see page 115). Error: Getter for implements interface must use the target's default calling convention.

The compiler will then automatically link this library to your program, and use the correct index for the function. 8.7 Assembler functions Functions and procedures can be completely implemented in assembly For this reason it is declared as a set. if you specify a variable name as a default value. Error: Implements-property must not have write-specifier A property which implements an interface may not have a write specifier.

Error: Objective-C does not have formal constructors nor destructors. This is different from the behaviour on native targets or when not activating automatically generated setters/getters, because in that case only the declared type of a variable influences the property behaviour. An overriding Objective-C method cannot have a different message name than an inherited method. Error: Expected another arg1 array elements When declaring a typed constant array, you provided to few elements to initialize the array Error: String constant too long while ansistrings are disabled Only

You can only pass variables as arguments to these functions. Subrange Types A subrange type defines a range of values within the range of another type (hence the name subrange). If you think that type constructors are common in many programming languages, you are right, but Pascal was the first language to introduce the idea in a formal and very precise Error: Re-raise isn't possible there You are trying to re-raise an exception where it is not allowed.

Error: EXPORT declared functions cannot be nested You cannot declare a function or procedure within a function or procedure that was declared as an export procedure. Contrary to the other modifiers, it must be specified separately, as follows: function DoSquare (X : Longint) : Longint; export; begin ... As an example: program CmodDemo; {$LINKLIB c} Const P : PChar = 'This is fun !'; Function strlen (P : PChar) : Longint; cdecl; external; begin WriteLn ('Length of (',p,') : Hint: C arrays are passed by reference Any array passed to a C function is passed by a pointer (i.e.

Warning: Conversion between ordinals and pointers is not portable If you typecast a pointer to an ordinal type of a different size (or vice-versa), this can cause problems. Error: Interface "arg1" cannot have method resolutions, "arg2" already delegates it Method resoulution is only possible for interfaces that are implemented directly, not by delegation. asm size mismatch There is an error in the assembly language. Only global variables can reference external variables.

I have defined it as such... Error: Each argument must have an explicit location If one argument has an explicit argument location, all arguments of a procedure must have one. The following code would cause such an error.  tmyobject = class     i : integer;     property x [i : integer]: integer read I write i;    Error: Cannot access a protected field of an object here Fields that are declared in a protected section of Error: The default value of a property must be constant The value of a default declared property must be known at compile time.

B takes 256 bytes memory, and BP only takes 4 bytes of memory (enough to keep an adress in memory). Subrange types Some of the predefined integer types are defined as subrange types: Type Longint = $80000000..$7fffffff; Integer = -32768..32767; shortint = -128..127; byte = 0..255; Word = 0..65535; But you Error: Incompatible types: got "arg1" expected "arg2" There is no conversion possible between the two types. This is not allowed.

Error: Self can only be an explicit parameter in methods which are message handlers The Self parameter can only be passed explicitly to a method which is declared as message handler. The default property must be an array property Only array properties of classes can be made default properties. So in the above example, SizeOf would return 24 for Point, 24 for RPoint and 26 for BetterRPoint. Info: Writing Browser log arg1 When information messages are on, the compiler warns you when it writes the browser log (generated with the {$Y+ } switch).

If you use the former, you must allocate memory yourself, using the Getmem function. This solution will work so long as the Main unit does not need to reference TTableAttributeType in its interface section. They must be moved to public sections. Error: REINTRODUCE cannot be used in objects reintroduce is not supported for objects, Objective-C classes and Objective-C protocols.

Delphi libraries tend to use class types instead of record types, but there are many record types defined by the Windows API. Error: Typed constants of the type 'procedure is nested' can only be initialized with NIL and global procedures/functions A nested procedural variable consists of two components: the address of the procedure/function An unknown instruction was encountered. This can be useful if you want to define the same function for different types.

Used for error management. inside procedures or function definitions. You can typecast ansistrings to PChar or Pointer types: Var P : Pointer; PC : PChar; S : AnsiString; begin S :='This is an ansistring'; PC:=Pchar(S); P :=Pointer(S); There is a Fatal: Direct assembler not supported for binary output format You cannot use direct assembler when using a binary writer.

It therefore checks the parameters in your function call, and looks if there is a function definition which matches the specified parameter list. Parameters are declared as call by reference using the var-directive. Error: Type parameters are not allowed on non-generic class/record/object procedure or function Type parameters are only allowed for methods of generic classes, records or objects Error: Generic declaration of "arg1" differs Warning: Comparison might be always false due to range of constant and expression There is a comparison between a constant and an expression where the constant is out of the valid

For now, I have duplicated the TTableAttrSet type definition at the top of the Utils.pas file as well as Main.pas, but this does not 'seem the right way'. A comment wasn't closed. Fatal: Declaration of generic class inside another generic class is not allowed At the moment, scanner supports recording of only one token buffer at the time (guarded by internal error 200511173 For example Var P : ^Longint; ...

Hint: Local variable "arg1" does not seem to be initialized This message is displayed if the compiler thinks that a variable will be used (i.e.