TESTING

                        TESTING CCMATH

     Two script files, runtest (a shell script), and testex (a perl script)
 are supplied to facilitate comparison of test program output with the
 sample output appended as a comment to each test source file. These
 scripts should be placed in some directory on your executable path. You
 should also check the first line of each script to and modify it if
 the locations assumed /bin/sh and /usr/bin/perl are not correct.

     To run a test and check its output you simply execute runtest in
 the 'test' subdirectory containing the test source code.

          runtest testsource.c test-command-line-parameters

 The standard command line parameters for each test are tabulated in the
 README file of the test subdirectory. This tabulation also specifies
 the sequence of prompt responses (if any) required to generate the
 standard test output. The output of the run is then compared, using
 'diff' to the standard output appended as a comment to the test source.
 Output of a successful test will look like the sample below.

                    1,2d0
                    < /*  Test output
                    < 
                    36d33
                    < */

 It includes only the enclosing comment flags and possibly some blank lines.
 Any differences in numerical values that appear may indicate a failed test.

     Note that some compilers generate slightly different formats for
 scientific (%e) notation, so differences in such numbers, flagged by 'diff',
 should be inspected to see if they actually differ in value as well as
 format.

     This test capability simplifies and speeds up initial testing of
 library functions. I urge you to inspect the test code and run some
 alternative tests for any function that will play a critical role in
 your application.