/** * This file has no copyright assigned and is placed in the Public Domain. * This file is part of the mingw-w64 runtime package. * No warranty is given; refer to the file DISCLAIMER.PD within this package. */ #include #include #include long long llround (double x) { double res; if (x >= 0.0) { res = ceil (x); if (res - x > 0.5) res -= 1.0; } else { res = ceil (-x); if (res + x > 0.5) res -= 1.0; res = -res; } if (!isfinite (res) || res > (double) LONG_LONG_MAX || res < (double) LONG_LONG_MIN) { errno = ERANGE; /* Undefined behaviour, so we could return anything. */ /* return res > 0.0 ? LONG_LONG_MAX : LONG_LONG_MIN; */ } return (long long) res; }