This is part of 3.33.0 – latest release.

STRING_TO_BUFFER

1.4.0

since lib: v2.27.0

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Examples:

_STRING_TO_BUFFER(STR, POS, ADR(bigarray), SIZEOF(bigarray))

Version history

1.4.0

02 Jan 2012 hm

Changes

Changed:

return the position after the input string when finished

show full history

1.3.0

12 Nov 2009 hm

Changes

Changed:

limit end to size - 1

1.2.0

13 May 2008 hm

Changes

Changed:

type of pointer to array[1..32767]
size of string to STRING_LENGTH

1.1.0

16 Mar 2008 hm

Changes

Changed:

type of input size to UINT

1.0.0

05 Mar 2008 hm

Changes

Added:

original version

Overview

kind	name	type	comment
input	STR	`STRING(STRING_LENGTH)`	string to be copied
input	POS	`INT`	position from which the string is copied into the buffer
input	PT	`POINTER TO ARRAY[0..32767] OF BYTE`	address of the buffer
input	SIZE	`UINT`	size of the buffer

Details

STR

STRING(STRING_LENGTH)

String to be copied.

POS

INT

Position from which the string is copied into the buffer.

PT

POINTER TO ARRAY[0..32767] OF BYTE

Address of the buffer.

SIZE

UINT

Size of the buffer.

Source code

Declarations

(*Converts a Real to a fixed length String*)
FUNCTION index : INT

(*
 * -----------------------------------------------------------------------------
 * Name               : index
 * Version            : 1.4.0
 * Date               : 2012-01-02
 * Author             : hm
 * 
 * -----------------------------------------------------------------------------
 * Converts a Real to a fixed length String
 * -----------------------------------------------------------------------------
 *)

VAR_INPUT
  STR : STRING(STRING_LENGTH); (*string to be copied*)
  POS : INT; (*position from which the string is copied into the buffer*)
  PT : POINTER TO ARRAY[0..32767] OF BYTE; (*address of the buffer*)
  SIZE : UINT; (*size of the buffer*)
END_VAR

VAR
  ps : POINTER TO BYTE;
  i : INT;
  end : INT;
END_VAR

Logic

ps := ADR(str);
end := MIN(pos + LEN(str), UINT_TO_INT(size));
IF end > 0 THEN end := end -1; END_IF;
FOR i := pos TO end DO
	pt^[i] := ps^;
	ps := ps + 1;
END_FOR;

_STRING_TO_BUFFER := i;

Implementation

Snippet of the function call:

dummy := STRING_TO_BUFFER(
           STR := ,
           POS := ,
           PT := ,
           SIZE := );