BVEC
Binary Vector Representation of Signed Integers

BVEC is a FORTRAN77 library which demonstrates how signed integers can be stored as binary vectors, and arithmetic can be performed on them.

Licensing:

The computer code and data files made available on this web page are distributed under the GNU LGPL license.

Languages:

BVEC is available in a C version and a C++ version and a FORTRAN77 version and a FORTRAN90 version and a MATLAB version and a Python version.

Related Data and Programs:

Source Code:

• bvec.f, the source code.
• bvec.sh, BASH commands to compile the source code.

Examples and Tests:

• bvec_prb.f, a sample calling program.
• bvec_prb.sh, BASH commands to compile and run the sample program.
• bvec_prb_output.txt, the output file.

List of Routines:

• BVEC_ADD adds two (signed) binary vectors.
• BVEC_AND computes the AND of two binary vectors.
• BVEC_CHECK checks a binary vector.
• BVEC_COMPLEMENT2 computes the two's complement of a binary vector.
• BVEC_MUL computes the product of two binary vectors.
• BVEC_NEXT generates the next BVEC.
• BVEC_NOT "negates" or takes the 1's complement of a binary vector.
• BVEC_OR computes the inclusive OR of two binary vectors.
• BVEC_PRINT prints a BVEC, with an optional title.
• BVEC_REVERSE reverses a binary vector.
• BVEC_SUB subtracts two binary vectors.
• BVEC_TO_I4 makes an integer from a (signed) binary vector.
• BVEC_UNIFORM returns a pseudorandom BVEC.
• BVEC_XOR computes the exclusive OR of two binary vectors.
• I4_TO_BVEC makes a signed binary vector from an I4.
• I4_UNIFORM_AB returns a scaled pseudorandom I4.
• TIMESTAMP prints the current YMDHMS date as a time stamp.

You can go up one level to the FORTRAN77 source codes.