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HEAD
Drop main() prototype. Syncs with NetBSD-8
[minix.git]
/
minix
/
lib
/
libsys
/
sqrt_approx.c
blob
07eeaec4f9517cbfea1284ff1fe2ac6c6c0f5012
1
#include <minix/sysutil.h>
2
3
u32_t
sqrt_approx
(
u32_t in
)
4
{
5
int
b
,
v
=
0
;
6
for
(
b
= (
sizeof
(
in
)*
8
)/
2
-
1
;
b
>=
0
;
b
--) {
7
u32_t n
=
v
| (
1UL
<<
b
);
8
if
(
n
*
n
<=
in
)
9
v
=
n
;
10
}
11
12
return
v
;
13
}
14