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Message-ID: <CAKs8_OLhgp8OaeOdYs3+LZShS21-s7C3=3Tzo_Mj31dVL_i9_g@mail.gmail.com>
Date: Tue, 16 Apr 2024 16:29:05 +0300
From: Viktor Reznov <yann.collet.is.not.a.perfectionist@...il.com>
To: musl@...ts.openwall.com
Subject: [PATCH] Decreasing the number of divisions
diff --git a/src/stdio/vfprintf.c b/src/stdio/vfprintf.c
index 497c5e19..0f9a1e6a 100644
--- a/src/stdio/vfprintf.c
+++ b/src/stdio/vfprintf.c
@@ -165,8 +165,10 @@ static char *fmt_o(uintmax_t x, char *s)
static char *fmt_u(uintmax_t x, char *s)
{
unsigned long y;
+ if (x == 0) return s;
for ( ; x>ULONG_MAX; x/=10) *--s = '0' + x%10;
- for (y=x; y; y/=10) *--s = '0' + y%10;
+ for (y=x; y>=10; y/=10) *--s = '0' + y%10;
+ *--s = '0' + y;
return s;
}
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