diff options
Diffstat (limited to 'ext/standard/math.c')
| -rw-r--r-- | ext/standard/math.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/ext/standard/math.c b/ext/standard/math.c index a1dda23eda..4185cd48f4 100644 --- a/ext/standard/math.c +++ b/ext/standard/math.c @@ -1,6 +1,6 @@ /* +----------------------------------------------------------------------+ - | PHP Version 5 | + | PHP Version 7 | +----------------------------------------------------------------------+ | Copyright (c) 1997-2014 The PHP Group | +----------------------------------------------------------------------+ @@ -219,7 +219,16 @@ static double php_asinh(double z) #ifdef HAVE_ASINH return(asinh(z)); #else +# ifdef _WIN64 + if (z > 0) { + return log(z + sqrt(z * z + 1)); + } + else { + return -log(-z + sqrt(z * z + 1)); + } +# else return(log(z + sqrt(1 + pow(z, 2))) / log(M_E)); +# endif #endif } /* }}} */ @@ -231,7 +240,15 @@ static double php_acosh(double x) #ifdef HAVE_ACOSH return(acosh(x)); #else +# ifdef _WIN64 + if (x >= 1) { + return log(x + sqrt(x * x - 1)); + } else { + return (DBL_MAX+DBL_MAX)-(DBL_MAX+DBL_MAX); + } +# else return(log(x + sqrt(x * x - 1))); +# endif #endif } /* }}} */ |