Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(1933)

Issues Search
    My Issues | Starred     Open | Closed | All

Unified Diff: fusl/src/math/trunc.c

Issue 1573973002: Add a "fork" of musl as //fusl. (Closed) Base URL: https://github.com/domokit/mojo.git@master
Patch Set: Created 4 years, 11 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
« no previous file with comments | « fusl/src/math/tgammal.c ('k') | fusl/src/math/truncf.c » ('j') | no next file with comments »
Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
Index: fusl/src/math/trunc.c
diff --git a/fusl/src/math/trunc.c b/fusl/src/math/trunc.c
new file mode 100644
index 0000000000000000000000000000000000000000..d13711b5015e073fbe69598cdf61f5126cb89df4
--- /dev/null
+++ b/fusl/src/math/trunc.c
@@ -0,0 +1,19 @@
+#include "libm.h"
+
+double trunc(double x)
+{
+ union {double f; uint64_t i;} u = {x};
+ int e = (int)(u.i >> 52 & 0x7ff) - 0x3ff + 12;
+ uint64_t m;
+
+ if (e >= 52 + 12)
+ return x;
+ if (e < 12)
+ e = 1;
+ m = -1ULL >> e;
+ if ((u.i & m) == 0)
+ return x;
+ FORCE_EVAL(x + 0x1p120f);
+ u.i &= ~m;
+ return u.f;
+}
« no previous file with comments | « fusl/src/math/tgammal.c ('k') | fusl/src/math/truncf.c » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698