strncmp - Compare first N characters of strings in Stateflow chart

  (case sensitive) - MATLAB ([original](https://www.mathworks.com/help/stateflow/ref/strncmp.html)) ([raw](?raw))

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Compare first N characters of strings in Stateflow chart (case sensitive)

Since R2021b

Syntax

Description

`tf` = strncmp(`str1`,`str2`,`n`) compares the first n characters of str1 andstr2. The operator returns 1 (true) if the strings are identical and 0 (false) otherwise.

example

Note

The operator strncmp is not supported in Stateflow® charts that use C as the action language. For similar functionality, usestrcmp.

Examples

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Set x to 1 (true) because the first 13 characters in the strings match. Set y to0 (false) because the first 14 characters in the strings do not match.

str1 = "Hello, world!"; str2 = "Hello, world!!!!!!!!!!!!"; x = strncmp(str1,str2,13); y = strncmp(str1,str2,14);

Stateflow chart that uses the srtncmp operator in a state.

Input Arguments

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Input strings, specified as string scalars. Enclose literal string with double quotes.

Example: "Hello"

Number of characters checked, starting at the beginning of each string, specified as a positive integer.

Limitations

This operator does not support the use of Stateflow structure fields or messages. For more information about structures in Stateflow, see Access Bus Signals.

Version History

Introduced in R2021b