Bug #80973 [NEW]: round() fail if ini 'precision' value > 16

From: pavlusha23 at gmail dot com Operating system: Linux PHP version: 8.0.3 Package: *Math Functions Bug Type: Bug Bug description:round() fail if ini 'precision' value > 16 Description: ------------ round() function fail if ini 'precision' value > 16 Test script: --------------- <?php // Default ini value ini_set('precision','14'); echo round(23.879999999999999, 2)."\n"; ini_set('precision','16'); echo round(23.879999999999999, 2)."\n"; ini_set('precision','17'); echo round(23.879999999999999, 2); Expected result: ---------------- 23.88 23.88 23.88 Actual result: -------------- 23.88 23.88 23.879999999999999 -- Edit bug report at https://bugs.php.net/bug.php?id=80973&edit=1 -- Fix committed: https://bugs.php.net/fix.php?id=80973&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=80973&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=80973&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=80973&r=needscript Try newer version: https://bugs.php.net/fix.php?id=80973&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=80973&r=support Expected behavior: https://bugs.php.net/fix.php?id=80973&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=80973&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=80973&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=80973&r=globals PHP version support discontinued: https://bugs.php.net/fix.php?id=80973&r=phptooold Daylight Savings: https://bugs.php.net/fix.php?id=80973&r=dst IIS Stability: https://bugs.php.net/fix.php?id=80973&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=80973&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=80973&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=80973&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=80973&r=mysqlcfg