convertToSingle

Convert double-precision MATLAB code to single-precision MATLAB code

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Syntax

convertTosingle options fcn_1, ..., fcn_n
convertTosingle options fcn_1, -args args_1 ,..., fcn_n -args args_n

Description

convertTosingle options fcn_1, ..., fcn_n generates single-precision MATLAB® code from the specified function or functions. When you use this syntax, you must provide a test file that convertToSingle can use to determine the properties of the input parameters. To specify the test file, use coder.config('single') to create a coder.SingleConfig object. Specify the TestBenchName property.

example

convertTosingle options fcn_1, -args args_1 ,..., fcn_n -args args_n specifies the properties of the input arguments.

example

Examples

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Generate single-precision code from a double-precision function myfun.m. Specify a test file for determining the argument properties and for verification of the converted types. Plot the error between the double-precision and single-precision values.

scfg = coder.config('single');
scfg.TestBenchName = 'myfun_test';
scfg.TestNumerics = true;
scfg.LogIOForComparisonPlotting = true;
convertToSingle -config scfg myfun

Convert myfun1.m and myfun2.m to single precision. Specify that myfun1 has a double scalar argument and myfun2 has a 2x3 double argument.

convertToSingle -config scfg myfun1 -args {0} myfun2 -args {zeros(2, 3)}

Generate single-precision code from a double-precision function, myfun.m, whose first argument is double scalar and whose second argument is 2x3 double.

 convertToSingle  myfun -args {0, zeros(2, 3)}

Input Arguments

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MATLAB function from which to generate single-precision code.

Definition of the size, class, and complexity of the input arguments specified as a cell array of types or example values. To create a type, use coder.typeof.

Specify one of the following single-conversion options.

-config config_object

Specify the configuration object to use for conversion of double-precision MATLAB code to single-precision MATLAB code. To create the configuration object, use 

coder.config('single');

If you do not use this option, the conversion uses a default configuration. When you omit -config, to specify the properties of the input arguments, use -args.

-globals global_values

Specify names and initial values for global variables in MATLAB files.

global_values is a cell array of global variable names and initial values. The format of global_values is:

{g1, init1, g2, init2, ..., gn, initn}

gn is the name of a global variable. initn is the initial value. For example:

-globals {'g', 5}

Alternatively, use this format:

-globals {global_var, {type, initial_value}}

type is a type object. To create the type object, use coder.typeof.

If you do not provide initial values for global variables using the -globals option, convertToSingle checks for the variable in the MATLAB global workspace. If you do not supply an initial value, convertToSingle generates an error.

Version History

Introduced in R2015b

See Also

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