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Diffstat (limited to 'libquadmath/math/ldexpq.c')
-rw-r--r-- | libquadmath/math/ldexpq.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/libquadmath/math/ldexpq.c b/libquadmath/math/ldexpq.c new file mode 100644 index 000000000..394d4590c --- /dev/null +++ b/libquadmath/math/ldexpq.c @@ -0,0 +1,27 @@ +/* s_ldexpl.c -- long double version of s_ldexp.c. + * Conversion to long double by Ulrich Drepper, + * Cygnus Support, drepper@cygnus.com. + */ + +/* + * ==================================================== + * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. + * + * Developed at SunPro, a Sun Microsystems, Inc. business. + * Permission to use, copy, modify, and distribute this + * software is freely granted, provided that this notice + * is preserved. + * ==================================================== + */ + +#include <errno.h> +#include "quadmath-imp.h" + +__float128 +ldexpq (__float128 value, int exp) +{ + if(!finiteq(value)||value==0.0Q) return value; + value = scalbnq(value,exp); + if(!finiteq(value)||value==0.0Q) errno = ERANGE; + return value; +} |