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uwrite/uread

29 Jul 2002 (Updated 22 Jul 2009)

UREAD/UWRITE are like FREAD/FWRITE except that they operate on arrays in memory.

File Information
Description	A=UWRITE(D, PREC) will create a uint8 array A from the double array D. The format of the binary data in A is determined by PREC (one of uint8, uint16, uint32, int8 int16, int32, float32, float64, or double). The size of A is dependent on the precision PREC. D=UREAD(A, N, PREC) will read the uint8 array A and return N values into D. The data in A are assumed to be in the format of PREC (see UWRITE for supported formats).
Required Products	MATLAB Compiler
MATLAB release	MATLAB 6.5 (R13)
Other requirements	Tested on sun solaris2.8 (gcc) and Windows 2000, MATLAB-supplied compiler

Tags for This File
Everyone's Tags	binary, data export, data import, fread, fwrite, uint8, uread, uwrite
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Comments and Ratings (4)
10 Mar 2005	Medon Decker	Works as advertised :-) (WinXP, R13) THANK YOU
06 Sep 2006	Michael Sprung	Thank you!!! It is really a shame that these are not implented routines of Matlab. It help me greatly speeding up my binary data input.
21 Jun 2010	Shlomi	This was really what I need to solve my problem with fwrite that works to slow hen multiple precision is needed (similar to the problem presented here: http://www.mathworks.de/matlabcentral/newsreader/view_thread/94508) Nobugs found (yet).
12 Aug 2010	Werner Goeman	Solved my problem immediately. The writing is now more than 10 times faster. Thank you! Remark: 'single' is not supported, use 'float32' instead

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Updates
20 Jun 2003	fixed documentation.
20 Jun 2003	fixed documentation
20 Jun 2003	fix documentation
22 Jul 2009	Removed GPL license.
22 Jul 2009	Removed GPL license from uwrite.c/uread.c