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

Issue 1714623002: [fusl] clang-format fusl (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: headers too Created 4 years, 10 months ago
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Index: fusl/src/math/remquof.c
diff --git a/fusl/src/math/remquof.c b/fusl/src/math/remquof.c
index 2f41ff706dde3e300aa0e8fbb5f7a868092f9615..07250961673c515ce9e58150ada7147189d13e40 100644
--- a/fusl/src/math/remquof.c
+++ b/fusl/src/math/remquof.c
@@ -1,82 +1,87 @@
#include <math.h>
#include <stdint.h>
-float remquof(float x, float y, int *quo)
-{
- union {float f; uint32_t i;} ux = {x}, uy = {y};
- int ex = ux.i>>23 & 0xff;
- int ey = uy.i>>23 & 0xff;
- int sx = ux.i>>31;
- int sy = uy.i>>31;
- uint32_t q;
- uint32_t i;
- uint32_t uxi = ux.i;
+float remquof(float x, float y, int* quo) {
+ union {
+ float f;
+ uint32_t i;
+ } ux = {x}, uy = {y};
+ int ex = ux.i >> 23 & 0xff;
+ int ey = uy.i >> 23 & 0xff;
+ int sx = ux.i >> 31;
+ int sy = uy.i >> 31;
+ uint32_t q;
+ uint32_t i;
+ uint32_t uxi = ux.i;
- *quo = 0;
- if (uy.i<<1 == 0 || isnan(y) || ex == 0xff)
- return (x*y)/(x*y);
- if (ux.i<<1 == 0)
- return x;
+ *quo = 0;
+ if (uy.i << 1 == 0 || isnan(y) || ex == 0xff)
+ return (x * y) / (x * y);
+ if (ux.i << 1 == 0)
+ return x;
- /* normalize x and y */
- if (!ex) {
- for (i = uxi<<9; i>>31 == 0; ex--, i <<= 1);
- uxi <<= -ex + 1;
- } else {
- uxi &= -1U >> 9;
- uxi |= 1U << 23;
- }
- if (!ey) {
- for (i = uy.i<<9; i>>31 == 0; ey--, i <<= 1);
- uy.i <<= -ey + 1;
- } else {
- uy.i &= -1U >> 9;
- uy.i |= 1U << 23;
- }
+ /* normalize x and y */
+ if (!ex) {
+ for (i = uxi << 9; i >> 31 == 0; ex--, i <<= 1)
+ ;
+ uxi <<= -ex + 1;
+ } else {
+ uxi &= -1U >> 9;
+ uxi |= 1U << 23;
+ }
+ if (!ey) {
+ for (i = uy.i << 9; i >> 31 == 0; ey--, i <<= 1)
+ ;
+ uy.i <<= -ey + 1;
+ } else {
+ uy.i &= -1U >> 9;
+ uy.i |= 1U << 23;
+ }
- q = 0;
- if (ex < ey) {
- if (ex+1 == ey)
- goto end;
- return x;
- }
+ 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 >> 31 == 0) {
- uxi = i;
- q++;
- }
- uxi <<= 1;
- q <<= 1;
- }
- i = uxi - uy.i;
- if (i >> 31 == 0) {
- uxi = i;
- q++;
- }
- if (uxi == 0)
- ex = -30;
- else
- for (; uxi>>23 == 0; uxi <<= 1, ex--);
+ /* x mod y */
+ for (; ex > ey; ex--) {
+ i = uxi - uy.i;
+ if (i >> 31 == 0) {
+ uxi = i;
+ q++;
+ }
+ uxi <<= 1;
+ q <<= 1;
+ }
+ i = uxi - uy.i;
+ if (i >> 31 == 0) {
+ uxi = i;
+ q++;
+ }
+ if (uxi == 0)
+ ex = -30;
+ else
+ for (; uxi >> 23 == 0; uxi <<= 1, ex--)
+ ;
end:
- /* scale result and decide between |x| and |x|-|y| */
- if (ex > 0) {
- uxi -= 1U << 23;
- uxi |= (uint32_t)ex << 23;
- } 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;
+ /* scale result and decide between |x| and |x|-|y| */
+ if (ex > 0) {
+ uxi -= 1U << 23;
+ uxi |= (uint32_t)ex << 23;
+ } 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;
}

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