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fwrite


Write data in binary form to the file specified by the file descriptor fid.


Syntax


count = fwrite(fid, data)
count = fwrite(fid, data, precision)
count = fwrite(fid, data, precision, skip)
count = fwrite(fid, data, precision, skip, arch)
count = fwrite(fid, data, precision, arch)

Input argument


fid

a file descriptor

data

data to write

precision

class of values to read

skip

number of bytes to skip

arch

a string specifying the data format for the file.

Output argument


count

-1 or number of elements written

Description


Write data in binary form to the file specified by the file descriptor fid.

characters encoding uses fopen parameter.

supported architecture:

native , n: format of the current machine.

ieee-be, b: IEEE big endian.

ieee-le, l: IEEE little endian.

Example


A = rand(3,1)

fileID = fopen([tempdir(), 'doubledata.bin'],'w');
fwrite(fileID, A,'double');
fclose(fileID);

fileID = fopen([tempdir(), 'doubledata.bin'],'r');
R = fread(fileID, 'double')
fclose(fileID);

See also


fopen, fclose, fread.

History


Version Description
1.0.0 initial version

Author


Allan CORNET

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