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The library provides functions for reading and writing vectors to a file as binary data or formatted text.
This function writes the elements of the vector v to the stream stream in binary format. The return value is 0 for success and
GSL_EFAILED
if there was a problem writing to the file. Since the data is written in the native binary format it may not be portable between different architectures.
This function reads into the vector v from the open stream stream in binary format. The vector v must be preallocated with the correct length since the function uses the size of v to determine how many bytes to read. The return value is 0 for success and
GSL_EFAILED
if there was a problem reading from the file. The data is assumed to have been written in the native binary format on the same architecture.
This function writes the elements of the vector v line-by-line to the stream stream using the format specifier format, which should be one of the
%g
,%e
or%f
formats for floating point numbers and%d
for integers. The function returns 0 for success andGSL_EFAILED
if there was a problem writing to the file.
This function reads formatted data from the stream stream into the vector v. The vector v must be preallocated with the correct length since the function uses the size of v to determine how many numbers to read. The function returns 0 for success and
GSL_EFAILED
if there was a problem reading from the file.