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mbintscalar

7-14

7mbintscalar

Purpose Assert variable is integer scalar.

Syntax mbintscalar(n)

Description The statement

mbintscalar(x)

causes the MATLAB Compiler to impute that x is an integer scalar. At

runtime, if

mbintscalar determines that x holds a value other than an integer

scalar,

mbintscalar issues an error message and halts execution of the

MEX-file.

mbintscalar tells the MATLAB interpreter to check whether x holds an

integer scalar value. If

x does not, mbintscalar issues an error message and

halts execution of the M-file. The MATLAB interpreter does not use

mbintscalar to impute x.

Note that

mbintscalar only tests x at the point in an M-file or MEX-file where

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

value of

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

mbintscalar cannot issue an error message.

mbintscalar defines an integer scalar as any value that meets the criteria of

both

mbint and mbscalar.

Example This code in MATLAB causes mbintscalar to generate an error message

because, although

n is a scalar, n does not hold a n integer value.

n = 4.2;

mbintscalar(n)

??? Error using ==> mbint

Argument to mbint must be integer.

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