From ddf99dafefee7c85aeb90fba492dd2d42745e395 Mon Sep 17 00:00:00 2001 From: Richard Kreckel Date: Tue, 5 Sep 2000 12:40:30 +0000 Subject: [PATCH] * src/complex/transcendental/cl_C_expt_C.cc (expt): fix logic for the 0^y cases. * inserted the missing ChangLog entry. :-) --- ChangeLog | 43 ++++++++++++++++++++++- src/complex/transcendental/cl_C_expt_C.cc | 34 ++++-------------- 2 files changed, 48 insertions(+), 29 deletions(-) diff --git a/ChangeLog b/ChangeLog index b5501b8..b71d943 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,8 @@ +2000-09-05 Richard Kreckel + + * src/complex/transcendental/cl_C_expt_C.cc (expt): fix logic for + the 0^y cases. + 2000-08-30 Richard Kreckel * include/cln/number.h, cl_number::_as_cl_private_thing(): removed. @@ -11,7 +16,43 @@ 2000-08-29 Richard Kreckel - * TODO: DESCRIBE NAMESPACE CHANGES HERE!!! + * */*: Pushed CLN into a namespace `cln'. While doing so, the + following identifiers got their poor-man's namespace (i.e. the + prefix `cl_') stripped off: + cl_catalanconst() -> catalanconst() + cl_compare() -> compare() + cl_cos_sin() -> cos_sin() + cl_cos_sin_t -> cos_sin_t + cl_cosh_sinh() -> cosh_sinh() + cl_cosh_sinh_t -> cosh_sinh_t + cl_decoded_dfloat -> decoded_dfloat + cl_decoded_ffloat -> decoded_ffloat + cl_decoded_float -> decoded_float + cl_decoded_lfloat -> decoded_lfloat + cl_decoded_sfloat -> decoded_sfloat + cl_default_float_format -> default_float_format + cl_default_print_flags -> default_print_flags + cl_default_random_state -> default_random_state + cl_double_approx() -> double_approx() + cl_equal() -> equal() + cl_equal_hashcode() -> equal_hashcode() + cl_eulerconst() -> eulerconst() + cl_find_modint_ring() -> find_modint_ring() + cl_find_univpoly_ring() -> find_univ_poly_ring() + cl_float_approx() -> float_approx + cl_float_format() -> float_format() + cl_float_format_t -> float_format_t + cl_free_hook() -> free_hook() + cl_hermite() -> hermite() + cl_laguerre() -> laguerre() + cl_legendre() -> legandre() + cl_malloc_hook() -> malloc_hook() + cl_pi() -> pi() + cl_tschebychev() -> tschebychev() + cl_zeta() -> zeta() + NB: For functions these changes includes all signatures. + * include/*: moved to include/cln/*, stripped `cl_' off filenames. + * cln-config.in: new file. 2000-08-26 Bruno Haible diff --git a/src/complex/transcendental/cl_C_expt_C.cc b/src/complex/transcendental/cl_C_expt_C.cc index b1bf2ea..149d9a1 100644 --- a/src/complex/transcendental/cl_C_expt_C.cc +++ b/src/complex/transcendental/cl_C_expt_C.cc @@ -6,7 +6,6 @@ // Specification. #include "cln/complex.h" - // Implementation. #include "cl_C.h" @@ -180,17 +179,13 @@ const cl_N expt (const cl_N& x, const cl_N& y) } // allgemeiner Fall (z.B. y Float oder komplex): if (zerop(x)) { // x=0.0 ? + if (zerop(y)) // y=0.0? + return expt_0(x); // Liefere 1 + if (rationalp(realpart(y))) // Realteil von y >0 exakt. + return 0; if (!plusp(realpart(y))) // Realteil von y <=0 ? - { cl_error_division_by_0(); } - if (realp(x) && realp(y)) { - DeclareType(cl_R,x); - DeclareType(cl_R,y); - var cl_R f = contagion(x,y); - // ein Float, da sonst x = Fixnum 0 gewesen wäre - { DeclareType(cl_F,f); - return cl_float(0,f); // 0.0 - } - } else { + cl_error_division_by_0(); + else { var cl_R f = contagion(contagion(x),contagion(y)); // ein Float, da sonst x = Fixnum 0 gewesen wäre { DeclareType(cl_F,f); @@ -199,23 +194,6 @@ const cl_N expt (const cl_N& x, const cl_N& y) } } } - if (zerop(y)) { // y=0.0 ? - if (realp(x) && realp(y)) { - DeclareType(cl_R,x); - DeclareType(cl_R,y); - var cl_R f = contagion(x,y); - // ein Float, da sonst y = Fixnum 0 gewesen wäre - { DeclareType(cl_F,f); - return cl_float(1,f); - } - } else { - var cl_R f = contagion(contagion(x),contagion(y)); - // ein Float, da sonst y = Fixnum 0 gewesen wäre - { DeclareType(cl_F,f); - return complex_C(cl_float(1,f),cl_float(0,f)); - } - } - } return exp(log(x)*y); }