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mbcharscalar

7-10

7mbcharscalar

Purpose Assert variable is a character scalar.

Syntax mbcharscalar(x)

Description The statement

mbcharscalar(x)

causes the MATLAB Compiler to impute that x is a character scalar, i.e., an

unsigned short variable. At runtime, if

mbcharscalar determines that x holds

a value other than a character scalar,

mbcharscalar issues an error message

and halts execution of the MEX-file.

mbcharscalar t ells the MATLAB interpreter to check whether x holds a

character scalar value. If

x does not, mbcharscalar issues an error message

and ha lts execution of the M-file. The MATLAB interpreter does not use

mbcharscalar to impute x.

Note that

mbcharscalar only tests x at the point in an M-file orMEX-file where

mbcharscalar call appears. In other words, an mbcharscalar call tests the

value of

x only once. If x becomes a vector after the mbcharscalar test,

mbcharscalar cannot issue an error message.

mbcharscalar defines a character scalar as any value that meets the criteria of

both

mbchar and mbscalar.

Example This code in MATLAB generates an error message.

n = ['hello' 'world'];

mbcharscalar(n)

??? Error using ==> mbscalar

Argument of mbscalar must be scalar.

See Also mbchar, mbcharvector, mbreal, mbscalar, mbvector, mbintscalar,

mbintvector, mcc

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