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author | Paul E. Murphy <murphyp@linux.vnet.ibm.com> | 2016-06-28 14:28:04 -0500 |
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committer | Paul E. Murphy <murphyp@linux.vnet.ibm.com> | 2016-08-29 12:43:38 -0500 |
commit | feb62ddacb7b1d772d7383de0228a3977f07fc1e (patch) | |
tree | 963280635eb242a98f191744c196d55fadc2550f /math/s_clog10_template.c | |
parent | 1dbc54f61e281d3f2c1712dadd12864c42f8a64a (diff) | |
download | glibc-feb62ddacb7b1d772d7383de0228a3977f07fc1e.tar.gz |
Convert remaining complex function to generated files
Convert cpow, clog, clog10, cexp, csqrt, and cproj functions
into generated templates. Note, ldbl-opt still retains
s_clog10l.c as the aliasing rules are non-trivial.
Diffstat (limited to 'math/s_clog10_template.c')
-rw-r--r-- | math/s_clog10_template.c | 90 |
1 files changed, 47 insertions, 43 deletions
diff --git a/math/s_clog10_template.c b/math/s_clog10_template.c index 8d9245bac6..82624e38be 100644 --- a/math/s_clog10_template.c +++ b/math/s_clog10_template.c @@ -23,102 +23,106 @@ #include <float.h> /* log_10 (2). */ -#define M_LOG10_2 0.3010299956639811952137388947244930267682 +#define LOG10_2 M_LIT (0.3010299956639811952137388947244930267682) /* pi * log10 (e). */ -#define M_PI_LOG10E 1.364376353841841347485783625431355770210 +#define PI_LOG10E M_LIT (1.364376353841841347485783625431355770210) -__complex__ double -__clog10 (__complex__ double x) +CFLOAT +M_DECL_FUNC (__clog10) (CFLOAT x) { - __complex__ double result; + CFLOAT result; int rcls = fpclassify (__real__ x); int icls = fpclassify (__imag__ x); if (__glibc_unlikely (rcls == FP_ZERO && icls == FP_ZERO)) { /* Real and imaginary part are 0.0. */ - __imag__ result = signbit (__real__ x) ? M_PI_LOG10E : 0.0; - __imag__ result = __copysign (__imag__ result, __imag__ x); + __imag__ result = signbit (__real__ x) ? PI_LOG10E : 0; + __imag__ result = M_COPYSIGN (__imag__ result, __imag__ x); /* Yes, the following line raises an exception. */ - __real__ result = -1.0 / fabs (__real__ x); + __real__ result = -1 / M_FABS (__real__ x); } else if (__glibc_likely (rcls != FP_NAN && icls != FP_NAN)) { /* Neither real nor imaginary part is NaN. */ - double absx = fabs (__real__ x), absy = fabs (__imag__ x); + FLOAT absx = M_FABS (__real__ x), absy = M_FABS (__imag__ x); int scale = 0; if (absx < absy) { - double t = absx; + FLOAT t = absx; absx = absy; absy = t; } - if (absx > DBL_MAX / 2.0) + if (absx > M_MAX / 2) { scale = -1; - absx = __scalbn (absx, scale); - absy = (absy >= DBL_MIN * 2.0 ? __scalbn (absy, scale) : 0.0); + absx = M_SCALBN (absx, scale); + absy = (absy >= M_MIN * 2 ? M_SCALBN (absy, scale) : 0); } - else if (absx < DBL_MIN && absy < DBL_MIN) + else if (absx < M_MIN && absy < M_MIN) { - scale = DBL_MANT_DIG; - absx = __scalbn (absx, scale); - absy = __scalbn (absy, scale); + scale = M_MANT_DIG; + absx = M_SCALBN (absx, scale); + absy = M_SCALBN (absy, scale); } - if (absx == 1.0 && scale == 0) + if (absx == 1 && scale == 0) { - __real__ result = __log1p (absy * absy) * (M_LOG10E / 2.0); + __real__ result = (M_LOG1P (absy * absy) + * ((FLOAT) M_MLIT (M_LOG10E) / 2)); math_check_force_underflow_nonneg (__real__ result); } - else if (absx > 1.0 && absx < 2.0 && absy < 1.0 && scale == 0) + else if (absx > 1 && absx < 2 && absy < 1 && scale == 0) { - double d2m1 = (absx - 1.0) * (absx + 1.0); - if (absy >= DBL_EPSILON) + FLOAT d2m1 = (absx - 1) * (absx + 1); + if (absy >= M_EPSILON) d2m1 += absy * absy; - __real__ result = __log1p (d2m1) * (M_LOG10E / 2.0); + __real__ result = M_LOG1P (d2m1) * ((FLOAT) M_MLIT (M_LOG10E) / 2); } - else if (absx < 1.0 - && absx >= 0.5 - && absy < DBL_EPSILON / 2.0 + else if (absx < 1 + && absx >= M_LIT (0.5) + && absy < M_EPSILON / 2 && scale == 0) { - double d2m1 = (absx - 1.0) * (absx + 1.0); - __real__ result = __log1p (d2m1) * (M_LOG10E / 2.0); + FLOAT d2m1 = (absx - 1) * (absx + 1); + __real__ result = M_LOG1P (d2m1) * ((FLOAT) M_MLIT (M_LOG10E) / 2); } - else if (absx < 1.0 - && absx >= 0.5 + else if (absx < 1 + && absx >= M_LIT (0.5) && scale == 0 - && absx * absx + absy * absy >= 0.5) + && absx * absx + absy * absy >= M_LIT (0.5)) { - double d2m1 = __x2y2m1 (absx, absy); - __real__ result = __log1p (d2m1) * (M_LOG10E / 2.0); + FLOAT d2m1 = M_SUF (__x2y2m1) (absx, absy); + __real__ result = M_LOG1P (d2m1) * ((FLOAT) M_MLIT (M_LOG10E) / 2); } else { - double d = __ieee754_hypot (absx, absy); - __real__ result = __ieee754_log10 (d) - scale * M_LOG10_2; + FLOAT d = M_HYPOT (absx, absy); + __real__ result = M_SUF (__ieee754_log10) (d) - scale * LOG10_2; } - __imag__ result = M_LOG10E * __ieee754_atan2 (__imag__ x, __real__ x); + __imag__ result = M_MLIT (M_LOG10E) * M_ATAN2 (__imag__ x, __real__ x); } else { - __imag__ result = __nan (""); + __imag__ result = M_NAN; if (rcls == FP_INFINITE || icls == FP_INFINITE) /* Real or imaginary part is infinite. */ - __real__ result = HUGE_VAL; + __real__ result = M_HUGE_VAL; else - __real__ result = __nan (""); + __real__ result = M_NAN; } return result; } -weak_alias (__clog10, clog10) -#ifdef NO_LONG_DOUBLE -strong_alias (__clog10, __clog10l) -weak_alias (__clog10, clog10l) + +declare_mgen_alias (__clog10, clog10) + +#if M_LIBM_NEED_COMPAT (clog10) +/* __clog10 is also a public symbol. */ +declare_mgen_libm_compat (__clog10, __clog10) +declare_mgen_libm_compat (clog10, clog10) #endif |