String Length - Output number of characters in input string - Simulink (original) (raw)
Main Content
Output number of characters in input string
Libraries:
Simulink / String
Description
The String Length block outputs the number of characters in the input string. For example, you can use the String Length block to move focus of attention to a particular location in a string.
Ports
Input
Input string, specified as a scalar.
Data Types: string
Output
Number of characters in the input string, specified as a scalar.
Data Types: int8 | uint8 | int16 | uint16 | int32 | uint32
Parameters
Output data type. The type can be inherited, specified directly, or expressed as a data type object such asSimulink.NumericType.
When you select an inherited option, the block exhibits these behaviors:
Inherit: Inherit via internal rule— Simulink® chooses a data type to balance numerical accuracy, performance, and generated code size, while taking into account the properties of the embedded target hardware.Inherit: Inherit via back propagation— Use data type of the driving block.
Click the Show data type assistant button 
to display the Data Type Assistant, which helps you set the data type attributes. SeeSpecify Data Types Using Data Type Assistant for more information.
Programmatic Use
| Block Parameter: OutDataTypeStr | |||||||
|---|---|---|---|---|---|---|---|
| Type: character vector | |||||||
| Values: 'Inherit: Inherit via internal rule' |'Inherit: Inherit via back propagation' | 'int8' | 'uint8' | 'int16' | 'uint16' | 'int32' | 'uint32' | |
| Default: 'Inherit: Inherit via internal rule' |
Category of data type, specified as Inherit,Built in, or Expression. For more information on using this parameter, see Specify Data Types Using Data Type Assistant.
Dependency
Clicking the Show data type assistant button enables this parameter.
Block Characteristics
| Data Types | integer | string |
|---|---|
| Direct Feedthrough | yes |
| Multidimensional Signals | no |
| Variable-Size Signals | no |
| Zero-Crossing Detection | no |
Extended Capabilities
HDL Coder™ provides additional configuration options that affect HDL implementation and synthesized logic.
HDL Architecture
This block has one default HDL architecture.
HDL Block Properties
| ConstrainedOutputPipeline | Number of registers to place at the outputs by moving existing delays within your design. Distributed pipelining does not redistribute these registers. The default is0. For more details, see ConstrainedOutputPipeline (HDL Coder). |
|---|---|
| InputPipeline | Number of input pipeline stages to insert in the generated code. Distributed pipelining and constrained output pipelining can move these registers. The default is0. For more details, see InputPipeline (HDL Coder). |
| OutputPipeline | Number of output pipeline stages to insert in the generated code. Distributed pipelining and constrained output pipelining can move these registers. The default is0. For more details, see OutputPipeline (HDL Coder). |
Version History
Introduced in R2018a