.. highlightlang:: us

.. _strlen:

strlen
======

.. index:: strlen

.. us.tag  strlen ENGLISH STR Changed420

:ref:`strlen` returns the length of a string in bytes.

.. function::  rmLen = strlen(smString)

.. us.return

**Return Value**

*rmLen* is a real matrix containing the length of strings in *smString*.

.. us.params

**Parameters**

.. uparam:: smString

   *smString* is a string matrix.

.. us.history

**History**

.. list-table::
   :header-rows: 1

   * - Version
     - Description
   * - 4.2.0
     - The function counts only characters to the first "\x00"-character (see :ref:`mem_len`).

.. seealso::
   :ref:`overview-strings`,
   :ref:`size`,
   :ref:`len`

:sub:`id-444241`