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Description
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The PChar type is a
pointer to an Char value.
It can also be used to point to characters within a
string, as in the example code.
As with other pointers, integer arithmetic, such as
Inc and Dec can
be performed on a PChar variable,
also shown in the example.
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Notes
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PChar
is principally used when processing null-terminated
(C-like) strings.
At the current time, Char
variables are identical to
AnsiChar variables, being 8 bits
in size.
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Related commands
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$ExtendedSyntax
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Controls some Pascal extension handling
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Char
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Variable type holding a single character
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Dec
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Decrement an ordinal variable
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Inc
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Increment an ordinal variable
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PAnsiChar
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A pointer to an AnsiChar value
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PString
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Pointer to a String value
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PWideChar
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Pointer to a WideChar
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Example code : Display
all characters in a string
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var
myString : string;
myCharPtr : PChar;
i : Integer;
begin
// Create
a string of Char's
myString := 'Hello
World';
// Point
to the first character in the
string
i := 1;
myCharPtr := Addr(myString[i]);
//
Display all characters in the
string
while i <= Length(myString) do
begin
ShowMessage(myCharPtr^);
Inc(i);
Inc(myCharPtr);
end;
end;
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Show full unit code
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