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-rw-r--r--ext/standard/tests/math/allowed_rounding_error.inc18
1 files changed, 18 insertions, 0 deletions
diff --git a/ext/standard/tests/math/allowed_rounding_error.inc b/ext/standard/tests/math/allowed_rounding_error.inc
new file mode 100644
index 0000000..71dbf9a
--- /dev/null
+++ b/ext/standard/tests/math/allowed_rounding_error.inc
@@ -0,0 +1,18 @@
+<?php
+function allowed_rounding_error ($number, $expected) {
+
+ //different machines may give slightly different floating point numbers
+ //This assumes that the results will be the same to + or - 1.0E-10.
+
+ $small_number = 1.0e-10;
+ $min = $expected - $small_number;
+ $max = $expected + $small_number;
+
+ if ($number < $max && $number > $min ) {
+ return true;
+ }
+ else {
+ return false;
+ }
+}
+?> \ No newline at end of file