System.SysUtils.StrAlloc

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Object Pascal

function StrAlloc(Size: Cardinal): PChar;

C++

extern DELPHI_PACKAGE System::WideChar * __fastcall StrAlloc(unsigned Size);

Properties

Type Visibility Source Unit Parent
function public
System.SysUtils.pas
System.SysUtils.hpp
System.SysUtils System.SysUtils

Description

Allocates a buffer for a null-terminated string and returns a pointer to its first character.

StrAlloc allocates a buffer for a null-terminated string with a maximum length of Size - 1 (1 byte must be reserved for the termination character). The result points to the location where the first character of the string is to be stored. A 32-bit number giving the total amount of memory allocated is stored in the four bytes preceding the first character; it is equal to Size + 4. If the space for a string is allocated with StrAlloc, it should be deallocated via StrDispose.

Because AnsiStrings (long strings) are implicitly null-terminated and dynamically allocated, the use of StrAlloc is deprecated.

See Also