Avoid Copying MEX array to C Struct
2 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
I am new to MEX. From the "phonebook.c" example, it appears that copying is required from prhs[] to a C struct . . . using either memcpy() or mxDuplicateArray().
In my case, prhs[] will be very large, (megabytes). Copying is not ideal.
Is there a way, using MEX commands, to set a pointer to a C struct to prhs[] and avoid copying??
Thanks in advance.
0 Kommentare
Akzeptierte Antwort
Jan
am 10 Aug. 2014
The array duplication is only required, when an input array is modified and replied as output. In all other cases you can use the pointer to the array data inside the Mex file also without any problems.
0 Kommentare
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Write C Functions Callable from MATLAB (MEX Files) finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!