[PATCH 06/11] msvcrt: Use the hypot()/hypotf() implementation from the bundled musl library.

[Alexandre Julliard]

From: Alexandre Julliard

---
 dlls/msvcrt/math.c | 101 ---------------------------------------------
 1 file changed, 101 deletions(-)

diff --git a/dlls/msvcrt/math.c b/dlls/msvcrt/math.c
index ef5d194eab8..9b5f628fbec 100644
--- a/dlls/msvcrt/math.c
+++ b/dlls/msvcrt/math.c
@@ -4599,107 +4599,6 @@ double CDECL _logb(double x)
     return __ilogb(x);
 }

-static void sq(double *hi, double *lo, double x)
-{
-    double xh, xl, xc;
-
-    xc = x * (0x1p27 + 1);
-    xh = x - xc + xc;
-    xl = x - xh;
-    *hi = x * x;
-    *lo = xh * xh - *hi + 2 * xh * xl + xl * xl;
-}
-
-/*********************************************************************
- *		_hypot (MSVCRT.@)
- *
- * Copied from musl: src/math/hypot.c
- */
-double CDECL _hypot(double x, double y)
-{
-    UINT64 ux = *(UINT64*)&x, uy = *(UINT64*)&y, ut;
-    double hx, lx, hy, ly, z;
-    int ex, ey;
-
-    /* arrange |x| >= |y| */
-    ux &= -1ULL >> 1;
-    uy &= -1ULL >> 1;
-    if (ux < uy) {
-        ut = ux;
-        ux = uy;
-        uy = ut;
-    }
-
-    /* special cases */
-    ex = ux >> 52;
-    ey = uy >> 52;
-    x = *(double*)&ux;
-    y = *(double*)&uy;
-    /* note: hypot(inf,nan) == inf */
-    if (ey == 0x7ff)
-        return y;
-    if (ex == 0x7ff || uy == 0)
-        return x;
-    /* note: hypot(x,y) ~= x + y*y/x/2 with inexact for small y/x */
-    /* 64 difference is enough for ld80 double_t */
-    if (ex - ey > 64)
-        return x + y;
-
-    /* precise sqrt argument in nearest rounding mode without overflow */
-    /* xh*xh must not overflow and xl*xl must not underflow in sq */
-    z = 1;
-    if (ex > 0x3ff + 510) {
-        z = 0x1p700;
-        x *= 0x1p-700;
-        y *= 0x1p-700;
-    } else if (ey < 0x3ff - 450) {
-        z = 0x1p-700;
-        x *= 0x1p700;
-        y *= 0x1p700;
-    }
-    sq(&hx, &lx, x);
-    sq(&hy, &ly, y);
-    return z * sqrt(ly + lx + hy + hx);
-}
-
-/*********************************************************************
- *      _hypotf (MSVCRT.@)
- *
- * Copied from musl: src/math/hypotf.c
- */
-float CDECL _hypotf(float x, float y)
-{
-    UINT32 ux = *(UINT32*)&x, uy = *(UINT32*)&y, ut;
-    float z;
-
-    ux &= -1U >> 1;
-    uy &= -1U >> 1;
-    if (ux < uy) {
-        ut = ux;
-        ux = uy;
-        uy = ut;
-    }
-
-    x = *(float*)&ux;
-    y = *(float*)&uy;
-    if (uy == 0xff << 23)
-        return y;
-    if (ux >= 0xff << 23 || uy == 0 || ux - uy >= 25 << 23)
-        return x + y;
-
-    z = 1;
-    if (ux >= (0x7f + 60) << 23) {
-        z = 0x1p90f;
-        x *= 0x1p-90f;
-        y *= 0x1p-90f;
-    } else if (uy < (0x7f - 60) << 23) {
-        z = 0x1p-90f;
-        x *= 0x1p90f;
-        y *= 0x1p90f;
-    }
-    return z * sqrtf((double)x * x + (double)y * y);
-}
-
 /*********************************************************************
  *		ceil (MSVCRT.@)
  *