<< fprintf

Stream manager

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fread

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

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Syntax

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res = fread(fid)

res = fread(fid, sz, precision)

res = fread(fid, sz, precision, skip)

res = fread(fid, sz, precision, arch)

res = fread(fid, sz, precision, skip, arch)

[res, count] = fread(fid, sz, precision, skip, arch)

Input argument

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fid

a file descriptor

sz

Dimensions of output array: scalar, [m,n] or [m, Inf]

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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res

a vector of floating point or integer type numbers

count

number of characters reads into res

Description

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

supported architecture:

native , n: format of the current machine.

ieee-be, b: IEEE big endian.

ieee-le, l: IEEE little endian.

characters encoding uses fopen parameter.

Examples

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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);

fileID = fopen([tempdir(), 'uint16nine.bin'],'w');
fwrite(fileID,[1:9],'uint16');
fclose(fileID);

fileID = fopen([tempdir(), 'uint16nine.bin'],'r');
A = fread(fileID,[4,Inf],'uint16')
fclose(fileID);

See also

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fopen, fclose, fwrite.

History

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Version	Description
1.0.0	initial version

Author

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Allan CORNET