From: Mischa POSLAWSKY <perl@shiar.org>
Date: Sat, 13 Mar 2021 06:16:29 +0000 (+0100)
Subject: round partial sum to avoid floating point errors
X-Git-Tag: v1.08~19
X-Git-Url: http://git.shiar.nl/barcat.git/commitdiff_plain/d38e0ec883629db7a1b92f379840e7c409bf904e

round partial sum to avoid floating point errors

Optional value available since commit v1.03-19-g0938debbad (2019-09-08)
[indicate limited results in stats] was overlooked while fixing formatting
in v1.06-24-g28f38df922 (2019-10-08) [round total value in statistics].
---

diff --git a/barcat b/barcat
index 319bc32..0ab19d9 100755
--- a/barcat
+++ b/barcat
@@ -308,7 +308,7 @@ say $opt{palette} ? color(0) : '' if $opt{spark};
 
 sub show_stat {
 	if ($opt{hidemin} or $opt{hidemax}) {
-		printf '%s of ', sum(grep { length }
+		printf '%.8g of ', sum(grep { length }
 			@values[$opt{hidemin} .. ($opt{hidemax} || @lines) - 1]
 		) // 0;
 	}
diff --git a/t/t2180-spark_combined_--spark=012345_-cs_--maxval=1_-L17.out b/t/t2180-spark_combined_--spark=012345_-cs_--maxval=1_-L17.out
index df1134e..85a1446 100644
--- a/t/t2180-spark_combined_--spark=012345_-cs_--maxval=1_-L17.out
+++ b/t/t2180-spark_combined_--spark=012345_-cs_--maxval=1_-L17.out
@@ -1,2 +1,2 @@
 12330443443445043
--7.4589999998 of -7.459 total in 16 values over 18 lines (-3 min, -0.47 avg, 2 max)
+-7.459 of -7.459 total in 16 values over 18 lines (-3 min, -0.47 avg, 2 max)