Mat_VarGetStructs man page on DragonFly

Mat_VarGetStructs man page on DragonFly

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MAT_VARGETSTRUCTS(3)	 BSD Library Functions Manual	  MAT_VARGETSTRUCTS(3)

NAME
     Mat_VarGetStructs — Index a structure variable using slices of each
     dimension

SYNOPSIS
     #include <matio.h>

     matvar_t *
     Mat_VarGetStructs(const matvar_t *matvar, int *start, int *stride,
	 int *edge, int copy_fields);

DESCRIPTION
     The Mat_VarGetStructs() function selects a subarray from a structure
     array matvar. Each of the elements in the subarray contains all of the
     fields of the structure. The index of each dimension 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 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
     indicating that the fields should not be free'd. They are free'd when the
     original structure is free'd.

RETURN VALUES
     A subarray of the original structure array, or NULL if there is an error.

SEE ALSO
     Mat_VarGetStructsLinear(3),

BSD				March 16, 2012				   BSD

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