.\" Copyright (c) 2015-2024, The matio contributors .\" Copyright (c) 2012-2014, Christopher C. Hulbert .\" All rights reserved. .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions are met: .\" .\" 1. Redistributions of source code must retain the above copyright notice, this .\" list of conditions and the following disclaimer. .\" .\" 2. Redistributions in binary form must reproduce the above copyright notice, .\" this list of conditions and the following disclaimer in the documentation .\" and/or other materials provided with the distribution. .\" .\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" .\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE .\" DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR .\" SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER .\" CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, .\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE .\" OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. .\" .Dd January 19, 2012 .Dt MAT_VARGETSTRUCTFIELDNAMES 3 .Os .Sh NAME .Nm Mat_VarGetStructFieldnames .Nd Get the fieldnames of a structure variable. .Sh SYNOPSIS .Fd #include .Ft char * const * .Fo Mat_VarGetStructFieldnames .Fa "const matvar_t *matvar" .Fc .Sh DESCRIPTION The .Fn Mat_VarGetStructFieldnames function returns the fieldnames of the structure variable .Fa matvar. .Sh RETURN VALUES An array of fieldnames is returned of the variable is a valid structure variable. Otherwise NULL is returned. The .Fn Mat_VarGetNumberOfFields function returns the number of fields for the structure. .Sh SEE ALSO .Xr Mat_VarGetNumberOfFields 3