From ca058077dc37e100c72c7340343d3366c23a114b Mon Sep 17 00:00:00 2001 From: Alexei Sheplyakov Date: Thu, 21 Aug 2008 16:06:02 +0400 Subject: [PATCH] Get rid CL_REQUIRE/CL_PROVIDE(cl_F_epspos), it is not really necessary. Move static variables [SFDL]F_epsilon into LF_epsilon() function (which is the only user of those variables) in order to avoid possible static order initialization problems. While at it, make LF_epsilon() function static. --- include/cln/float.h | 1 - src/float/misc/cl_F_epspos.cc | 37 ++++++++++++++++------------------- 2 files changed, 17 insertions(+), 21 deletions(-) diff --git a/include/cln/float.h b/include/cln/float.h index 5a06ff8..fe8a9c8 100644 --- a/include/cln/float.h +++ b/include/cln/float.h @@ -570,7 +570,6 @@ extern const cl_F least_negative_float (float_format_t f); // Returns the smallest floating point number e > 0 such that 1+e != 1. extern const cl_F float_epsilon (float_format_t f); -//CL_REQUIRE(cl_F_epspos) // Returns the smallest floating point number e > 0 such that 1-e != 1. extern const cl_F float_negative_epsilon (float_format_t f); diff --git a/src/float/misc/cl_F_epspos.cc b/src/float/misc/cl_F_epspos.cc index f3ade60..8342def 100644 --- a/src/float/misc/cl_F_epspos.cc +++ b/src/float/misc/cl_F_epspos.cc @@ -3,8 +3,6 @@ // General includes. #include "cl_sysdep.h" -CL_PROVIDE(cl_F_epspos) - // Specification. #include "cln/float.h" @@ -19,23 +17,7 @@ CL_PROVIDE(cl_F_epspos) namespace cln { -// Bei Floats mit d Bits (incl. Hiddem Bit, also d = ?F_mant_len+1) -// ist ?F_epsilon = 2^-d*(1+2^(1-d)), d.h. Mantisse 10...01, Vorzeichen +. - -static const cl_SF SF_epsilon = - make_SF(0,SF_exp_mid-SF_mant_len,bit(SF_mant_len)+1); - -static const cl_FF FF_epsilon = - encode_FF(0,-FF_mant_len,bit(FF_mant_len)+1); - -static const cl_DF DF_epsilon = - #if (cl_word_size==64) - encode_DF(0,-DF_mant_len,bit(DF_mant_len)+1); - #else - encode_DF(0,-DF_mant_len,bit(DF_mant_len-32),1); - #endif - -inline const cl_LF LF_epsilon (uintC len) +static inline const cl_LF LF_epsilon (uintC len) { var Lfloat erg = allocate_lfloat(len,LF_exp_mid+1-intDsize*len,0); var uintD* ptr = &TheLfloat(erg)->data[0]; @@ -53,6 +35,22 @@ inline const cl_LF LF_epsilon (uintC len) const cl_F float_epsilon (float_format_t f) { + // Bei Floats mit d Bits (incl. Hiddem Bit, also d = ?F_mant_len+1) + // ist ?F_epsilon = 2^-d*(1+2^(1-d)), d.h. Mantisse 10...01, Vorzeichen +. + + static const cl_SF SF_epsilon = + make_SF(0,SF_exp_mid-SF_mant_len,bit(SF_mant_len)+1); + + static const cl_FF FF_epsilon = + encode_FF(0,-FF_mant_len,bit(FF_mant_len)+1); + + static const cl_DF DF_epsilon = + #if (cl_word_size==64) + encode_DF(0,-DF_mant_len,bit(DF_mant_len)+1); + #else + encode_DF(0,-DF_mant_len,bit(DF_mant_len-32),1); + #endif + floatformatcase((uintC)f , return SF_epsilon; , return FF_epsilon; @@ -63,4 +61,3 @@ const cl_F float_epsilon (float_format_t f) } // namespace cln -CL_PROVIDE_END(cl_F_epspos) -- 2.45.2