cvx_check_dimension.m
de096106547amaster

cvx_check_dimension.m
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			function y = cvx_check_dimension( x, zero_ok )

			%CVX_CHECK_DIMENSION Verifies that the input is valid dimension.
			% CVX_CHECK_DIMENSION( DIM ) verifies that the quantity DIM is valid for use
			% in commands that call for a dimension; e.g., SUM( X, DIM ). In other words,
			% it verifies that DIM is a positive integer scalar.
			%
			% CVX_CHECK_DIMENSION( DIM, ZERO_OK ) allows DIM to be zero if ZERO_OK is
			% true. If ZERO_OK is false, the default behavior is used.

			if isnumeric( x ) && length( x ) == 1 && isreal( x ) && x < Inf && x == floor( x ),
			if nargin < 2, zero_ok = false; end
			y = x > 0 \| zero_ok;
			else
			y = 0;
			end

			% Copyright 2005-2014 CVX Research, Inc.
			% See the file LICENSE.txt for full copyright information.
			% The command 'cvx_where' will show where this file is located.