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-rw-r--r--lib/mlibc/options/ansi/musl-generic-math/remquo.c82
1 files changed, 0 insertions, 82 deletions
diff --git a/lib/mlibc/options/ansi/musl-generic-math/remquo.c b/lib/mlibc/options/ansi/musl-generic-math/remquo.c
deleted file mode 100644
index 59d5ad5..0000000
--- a/lib/mlibc/options/ansi/musl-generic-math/remquo.c
+++ /dev/null
@@ -1,82 +0,0 @@
-#include <math.h>
-#include <stdint.h>
-
-double remquo(double x, double y, int *quo)
-{
- union {double f; uint64_t i;} ux = {x}, uy = {y};
- int ex = ux.i>>52 & 0x7ff;
- int ey = uy.i>>52 & 0x7ff;
- int sx = ux.i>>63;
- int sy = uy.i>>63;
- uint32_t q;
- uint64_t i;
- uint64_t uxi = ux.i;
-
- *quo = 0;
- if (uy.i<<1 == 0 || isnan(y) || ex == 0x7ff)
- return (x*y)/(x*y);
- if (ux.i<<1 == 0)
- return x;
-
- /* normalize x and y */
- if (!ex) {
- for (i = uxi<<12; i>>63 == 0; ex--, i <<= 1);
- uxi <<= -ex + 1;
- } else {
- uxi &= -1ULL >> 12;
- uxi |= 1ULL << 52;
- }
- if (!ey) {
- for (i = uy.i<<12; i>>63 == 0; ey--, i <<= 1);
- uy.i <<= -ey + 1;
- } else {
- uy.i &= -1ULL >> 12;
- uy.i |= 1ULL << 52;
- }
-
- q = 0;
- if (ex < ey) {
- if (ex+1 == ey)
- goto end;
- return x;
- }
-
- /* x mod y */
- for (; ex > ey; ex--) {
- i = uxi - uy.i;
- if (i >> 63 == 0) {
- uxi = i;
- q++;
- }
- uxi <<= 1;
- q <<= 1;
- }
- i = uxi - uy.i;
- if (i >> 63 == 0) {
- uxi = i;
- q++;
- }
- if (uxi == 0)
- ex = -60;
- else
- for (; uxi>>52 == 0; uxi <<= 1, ex--);
-end:
- /* scale result and decide between |x| and |x|-|y| */
- if (ex > 0) {
- uxi -= 1ULL << 52;
- uxi |= (uint64_t)ex << 52;
- } else {
- uxi >>= -ex + 1;
- }
- ux.i = uxi;
- x = ux.f;
- if (sy)
- y = -y;
- if (ex == ey || (ex+1 == ey && (2*x > y || (2*x == y && q%2)))) {
- x -= y;
- q++;
- }
- q &= 0x7fffffff;
- *quo = sx^sy ? -(int)q : (int)q;
- return sx ? -x : x;
-}