strncmp

Compare first N characters of strings in Requirements Table block (case sensitive)

Since R2022b

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Syntax

tf = strncmp(str1,str2,n)

Description

tf = strncmp(str1,str2,n) compares up to n characters of str1 and str2. The operator returns 1 (true) if the strings are identical and 0 (false) otherwise. Use this operator in the Requirements Table block.

example

Examples

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In a Requirements Table block, create a requirement that checks if the string "Hello, world!" matches the first thirteen characters of the string "Hello, world!!!!!!!!!!!!".

y = strncmp("Hello, world!","Hello, world!!!!!!!!!!!!",13)

This example shows a requirement that checks if the string "Hello, world!" matches the first 13 characters of the string "Hello, world!!!!!!!!!!!!".

Input Arguments

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

Example: "Hello"

Data Types: string

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

Data Types: single | double | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64

Limitations

  • This operator does not support the use of Simulink.Bus object fields.

Version History

Introduced in R2022b

See Also

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