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authorElizabeth Hunt <elizabeth.hunt@simponic.xyz>2023-09-27 09:53:37 -0600
committerElizabeth Hunt <elizabeth.hunt@simponic.xyz>2023-09-27 09:53:37 -0600
commit1a8c81d07efe55c5a6909aff32359d4b8866af1c (patch)
treedbaf949a4d20226560d97ef9b48dbdcd71b7ad1a /tests/maceps.lisp
parent5e85a662d21081bc27adc1142759659cca59cd62 (diff)
downloadcmath-1a8c81d07efe55c5a6909aff32359d4b8866af1c.tar.gz
cmath-1a8c81d07efe55c5a6909aff32359d4b8866af1c.zip
keep unit tests but make directory structure more consistent with requirements i did not read
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+(defpackage lizfcm/tests.maceps
+ (:use :cl
+ :fiveam
+ :lizfcm.approx
+ :lizfcm.utils
+ :lizfcm/tests)
+ (:export :approx-suite))
+(in-package :lizfcm/tests.maceps)
+
+(def-suite maceps-suite
+ :in lizfcm-test-suite)
+(in-suite maceps-suite)
+
+(test maceps
+ :description "double precision provides precision about (mac eps of single precision) squared"
+ (let* ((maceps-computation-double (compute-maceps (lambda (x) x)
+ 1.0d0
+ 1.0d0))
+ (maceps-computation-single (compute-maceps (lambda (x) x)
+ 1.0
+ 1.0))
+ (last-double-h (cadar (last maceps-computation-double)))
+ (last-single-h (cadar (last maceps-computation-single))))
+ (is (within-range-p
+ (- last-double-h (* last-single-h last-single-h))
+ 0
+ last-single-h))))