Tip: See also the IDL_String::Strlen method, which provides similar functionality but with an object-oriented interface.

The STRLEN function returns the length of its string-type argument. If the argument is not a string, it is first converted to string type.

Examples

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To find the length of the string “IDL is fun” and print the result, enter:

PRINT, STRLEN('IDL is fun')

IDL prints:

   10

Syntax

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Result = STRLEN(Expression)

Return Value

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Returns the string length.

Arguments

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Expression

The expression for which the string length is desired. If this parameter is not a string, it is converted using IDL’s default formatting rules in order to determine the length. The result is a long integer. If Expression is an array, the result is a long integer array with the same structure, where each element contains the length of the corresponding Expression element.

Keywords

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None.

Version History

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Original

Introduced

See Also

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String Operations, String Processing, IDL_String