computer

Information about computer on which MATLAB is running

Syntax

str = computer

archstr = computer('arch')

[str,maxsize] = computer

[str,maxsize,endian] = computer

Description

str = computer returns the computer type on which MATLAB^® is running.

archstr = computer('arch') returns the system architecture. The mex command and standalone applications use this value to locate MATLAB library files.

[str,maxsize] = computer returns the maximum number of elements allowed in an array with this version of MATLAB.

[str,maxsize,endian] = computer returns the endian byte order format.

Output Arguments

str — Computer type

'PCWIN64' | 'GLNXA64' | 'MACI64' | 'MACA64'

Computer type, returned as a character vector.

• 'PCWIN64' - 64-bit Windows^® platform

• 'GLNXA64' - 64-bit Linux^® platform

• 'MACI64' - 64-bit macOS platform

• 'MACA64' - 64-bit macOS platform, Apple silicon

archstr — System architecture

'win64' | 'glnxa64' | 'maci64' | 'maca64'

System architecture, returned as a character vector.

• 'win64' - 64-bit Windows platform

• 'glnxa64' - 64-bit Linux platform

• 'maci64' - 64-bit macOS platform

• 'maca64' - 64-bit macOS platform, Apple silicon

maxsize — Maximum allowed array elements

2^48 - 1

Maximum number of elements allowed in an array, returned as double.

endian — Endian byte order format

'L' | 'B'

Endian byte order format, returned as a character vector.

• 'L' - little-endian byte ordering for 64-bit Windows, Linux, and macOS platforms

• 'B' - big-endian byte ordering

Algorithms

For 64-bit Windows platforms:

• ispc returns 1 (true)

• isunix returns 0 (false)

• ismac returns 0 (false)

For 64-bit Linux platforms:

• ispc returns 0 (false)

• isunix returns 1 (true)

• ismac returns 0 (false)

For 64-bit macOS platforms:

• ispc returns 0 (false)

• isunix returns 1 (true)

• ismac returns 1 (true)

Extended Capabilities

C/C++ Code Generation

Generate C and C++ code using MATLAB® Coder™.

Usage notes and limitations:

• Information about the computer on which the generated code is running.

• Use only when the code generation target is S-function (Simulation) or MEX-function.

Thread-Based Environment

Run code in the background using MATLAB® backgroundPool or accelerate code with Parallel Computing Toolbox™ ThreadPool.

This function fully supports thread-based environments. For more information, see Run MATLAB Functions in Thread-Based Environment.

Version History

Introduced before R2006a