MemModify (Function)

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Existence of memory zone
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MemModify (Function)

In french: MemModifie

Warning
From version 20, this feature is kept for backward compatibility. We recommend that you use the Associative arrays.

Modifies an element in a memory zone.

Versions 15 and later

This function is now available for Android applications.

New in version 15

This function is now available for Android applications.

Versions 17 and later

This function is now available for iPhone/iPad applications.

New in version 17

This function is now available for iPhone/iPad applications.

Versions 18 and later

This function is now available in Windows Store apps mode.

This function is now available in Android Widget mode.

New in version 18

This function is now available in Windows Store apps mode.

This function is now available in Android Widget mode.

This function is now available in Windows Store apps mode.

This function is now available in Android Widget mode.

Versions 22 and later

This function is now available in Universal Windows 10 App mode.

New in version 22

This function is now available in Universal Windows 10 App mode.

Versions 26 and later

This function is now available for Apple Watch applications.

New in version 26

This function is now available for Apple Watch applications.

Example

// Resets to 0 all the values greater than 100
// in "MyMemoryZone"
FOR Subscript = 1 _TO_ MemCount("MyMemoryZone")
ResValue = MemRetrieve("MyMemoryZone", Subscript)
IF ResValue > 100 THEN MemModify("MyMemoryZone", 0, 0, Subscript)
END

Syntax

MemModify(<Memory zone> , <Modified Value> , <Return value> , <Subscript>)

<Memory zone>: Character string (with quotes)

Name of the memory zone, defined by MemCreate.

<Modified Value>: Character string, integer or real

Value that is modified in the memory zone. This value corresponds to the sort argument used by MemSort. This value is returned by MemKeyVal.

<Return value>: Character string

Value returned by MemRetrieve or MemSetPosition.

<Subscript>: Integer

Subscript of element to modify. The subscript of an element is returned by MemCurrent or MemSeek.

Remarks

Existence of memory zone

The existence of the memory zone is not checked.

If the specified memory zone does not exist, a WLanguage error occurs when MemModify is used.

To check the existence of a memory zone, use MemExist.

Sorting the elements

The element modified in the memory zone is not sorted. You must use MemSort to sort the entire memory zone.

Business / UI classification: Neutral code

Component: wd260std.dll