<< ftell

Stream manager

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fwrite

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

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Syntax

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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

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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

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count

-1 or number of elements written

Description

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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

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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

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fopen, fclose, fread.

History

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Version	Description
1.0.0	initial version

Author

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Allan CORNET