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authorArnold D. Robbins <arnold@skeeve.com>2017-05-29 05:57:29 +0300
committerArnold D. Robbins <arnold@skeeve.com>2017-05-29 05:57:29 +0300
commitc73879ace26ad81ee05db907001b7989d0b11af3 (patch)
tree8230234d439f623fedaef5131ddfe21203cb73e9 /awklib/eg
parent6163a2b1d5bdc76c395f5c7c1d0d8ef445011357 (diff)
downloadegawk-c73879ace26ad81ee05db907001b7989d0b11af3.tar.gz
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Add doc on checking for MPFR at runtime.
Diffstat (limited to 'awklib/eg')
-rw-r--r--awklib/eg/lib/have_mpfr.awk9
1 files changed, 9 insertions, 0 deletions
diff --git a/awklib/eg/lib/have_mpfr.awk b/awklib/eg/lib/have_mpfr.awk
new file mode 100644
index 00000000..90bd523b
--- /dev/null
+++ b/awklib/eg/lib/have_mpfr.awk
@@ -0,0 +1,9 @@
+# adequate_math_precision --- return true if we have enough bits
+#
+# Andrew Schorr, aschorr@telemetry-investments.com, Public Domain
+# May 2017
+
+function adequate_math_precision(n)
+{
+ return (1 != (1+(1/(2^(n-1)))))
+}