MAT_VARGETSTRUCTSLINE... BSD Library Functions Manual MAT_VARGETSTRUCTSLINE...NAMEMat_VarGetStructsLinear — Linearly index a structure variable
SYNOPSIS
#include <matio.h>
matvar_t *
Mat_VarGetStructsLinear(const matvar_t *matvar, int start, int stride,
int edge, int copy_fields);
DESCRIPTION
The Mat_VarGetStructsLinear() function selects a subarray from a struc‐
ture array matvar. Each of the elements in the subarray contains all of
the fields of the structure. The indexing starts at the start element in
the array (0 being the first element), and reads every stride values (1
being every element, 2 every other element, etc.). The total number of
elements in the subarray is specified as edge. The original array must
have at least start+(stride-1)*edge+1 elements. The copy_fields option
specifies whether the fields of the original structure are copied for the
new subarray. If set to 0, the returned structure array's fields have the
same pointer as the original array, and the data field of the subarray
structure. The subarray is marked with the conserve memory flag indicat‐
ing that the fields should not be free'd. They are free'd when the origi‐
nal structure is free'd.
RETURN VALUES
A subarray of the original structure array, or NULL if there is an error.
SEE ALSOMat_VarGetStructs(3),
BSD March 14, 2012 BSD
