diff options
Diffstat (limited to 'newlib/libm/math/w_exp.c')
| -rw-r--r-- | newlib/libm/math/w_exp.c | 37 |
1 files changed, 4 insertions, 33 deletions
diff --git a/newlib/libm/math/w_exp.c b/newlib/libm/math/w_exp.c index 0c4467712..3da6d7702 100644 --- a/newlib/libm/math/w_exp.c +++ b/newlib/libm/math/w_exp.c @@ -34,9 +34,6 @@ DESCRIPTION @end tex is the base of the natural system of logarithms, approximately 2.71828). - You can use the (non-ANSI) function <<matherr>> to specify - error handling for these functions. - RETURNS On success, <<exp>> and <<expf>> return the calculated value. If the result underflows, the returned value is <<0>>. If the @@ -77,7 +74,6 @@ u_threshold= -7.45133219101941108420e+02; /* 0xc0874910, 0xD52D3051 */ return __ieee754_exp(x); #else double z; - struct exception exc; z = __ieee754_exp(x); if(_LIB_VERSION == _IEEE_) return z; if(finite(x)) { @@ -89,37 +85,12 @@ u_threshold= -7.45133219101941108420e+02; /* 0xc0874910, 0xD52D3051 */ SET_HIGH_WORD(inf,0x7ff00000); /* set inf to infinite */ #endif - exc.type = OVERFLOW; - exc.name = "exp"; - exc.err = 0; - exc.arg1 = exc.arg2 = x; - if (_LIB_VERSION == _SVID_) - exc.retval = HUGE; - else - exc.retval = HUGE_VAL; - if (_LIB_VERSION == _POSIX_) - errno = ERANGE; - else if (!matherr(&exc)) { - errno = ERANGE; - } - if (exc.err != 0) - errno = exc.err; - return exc.retval; + errno = ERANGE; + return HUGE_VAL; } else if(x<u_threshold) { /* exp(finite) underflow */ - exc.type = UNDERFLOW; - exc.name = "exp"; - exc.err = 0; - exc.arg1 = exc.arg2 = x; - exc.retval = 0.0; - if (_LIB_VERSION == _POSIX_) - errno = ERANGE; - else if (!matherr(&exc)) { - errno = ERANGE; - } - if (exc.err != 0) - errno = exc.err; - return exc.retval; + errno = ERANGE; + return 0.0; } } return z; |