<< execstr

Core

exit >>

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exist

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Check for the existence.

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Syntax

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res = exist(name)

res = exist(name, category)

Input argument

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name

a string: name of variable, function, file or directory.

category

a string: 'var', 'builtin', 'file', or 'dir'.

Output argument

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res

a integer value.

Description

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exists checks for the existence of variable, builtin, file or directory.

exists returns:

0 does not exist

1 is an variable

2 is a file

3 is a mex function

5 is a builtin or function

7 is a directory

Example

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exist('fileread')
fileread = 3;
exist('fileread')
clear fileread
exist('fileread')

See also

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isbuiltin, ismacro, isfile, isdir, isvar.

History

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Version	Description
1.0.0	initial version

Author

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Allan CORNET