This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "GiNaC -- a C++ library for symbolic computations". The branch, master has been updated via a7693a0f710b49494f95ce5a4a0953752e69c7f9 (commit) via 2d52c00438cde2c47f43620d26d78022f0d60746 (commit) via a297391b22c1a4ec3464d13191f8cb33332c9863 (commit) via 5ea14a22768031a1cd4abce2926d5359c5d0c15f (commit) via 7bc327c75aaa3118de14dfcee59bcf0fd40e3f4a (commit) via 58aaaf83c55c5784e1d94c2a794af96d7769165b (commit) via 6335b2cfb6f3f9ec339ff683bed415a5879d7909 (commit) via 2406529f5ceb193a46b1b5a07a8810880a8ceceb (commit) from e20fd5e760136cf343f4d2d73d0f3dfc6573ac49 (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit a7693a0f710b49494f95ce5a4a0953752e69c7f9 Author: Alexei Sheplyakov <varg@theor.jinr.ru> Date: Wed Mar 19 12:28:34 2008 +0300 define lgamma and tgamma taking cl_N as an argument. The actual code is the same. These functions are OK since cl_N is not automatically converted to numeric any more. commit 2d52c00438cde2c47f43620d26d78022f0d60746 Author: Alexei Sheplyakov <varg@theor.jinr.ru> Date: Wed Mar 19 12:28:10 2008 +0300 Implicit conversion from cl_N to numeric considered harmful. Finally, mark the numeric(const cl_N&) ctor as explicit. This allows one to mix the code using GiNaC and CLN, i.e. cl_N x, y; // initialize them cl_N z = sin(x) + y*exp(y); symbol a("a"); ex e = exp(a); commit a297391b22c1a4ec3464d13191f8cb33332c9863 Author: Alexei Sheplyakov <varg@theor.jinr.ru> Date: Wed Mar 19 12:27:27 2008 +0300 bernoulli, fibonacci, iquo: explicitly convert return values to numeric. Implicit conversion from cl_N to numeric considered harmful, part 6. commit 5ea14a22768031a1cd4abce2926d5359c5d0c15f Author: Alexei Sheplyakov <varg@theor.jinr.ru> Date: Wed Mar 19 12:27:07 2008 +0300 tgamma, lgamma: convert to take cl_N as an argument; provide wrappers for GiNaC::numeric Implicit conversion from cl_N to numeric considered harmful, part 5. commit 7bc327c75aaa3118de14dfcee59bcf0fd40e3f4a Author: Alexei Sheplyakov <varg@theor.jinr.ru> Date: Wed Mar 19 12:26:52 2008 +0300 Li2, zeta, sqrt, abs, gcd, etc.: explicitly convert return value to numeric. Implicit conversion from cl_N to numeric considered harmful, part 4. commit 58aaaf83c55c5784e1d94c2a794af96d7769165b Author: Alexei Sheplyakov <varg@theor.jinr.ru> Date: Wed Mar 19 12:26:23 2008 +0300 elementary functions: explicitly convert return values from cl_N to numeric. Implicit conversion from cl_N to numeric considered harmful, part 3. commit 6335b2cfb6f3f9ec339ff683bed415a5879d7909 Author: Alexei Sheplyakov <varg@theor.jinr.ru> Date: Wed Mar 19 12:25:55 2008 +0300 inifcns_nstdsums.cpp: Lin_numeric takes cl_N as an argument instead of numeric. Implicit conversion from cl_N to numeric considered harmful, part 2. commit 2406529f5ceb193a46b1b5a07a8810880a8ceceb Author: Alexei Sheplyakov <varg@theor.jinr.ru> Date: Wed Mar 19 12:24:36 2008 +0300 inifcns_nstdsums.cpp: S_num takes cl_N as an argument instead of numeric. Implicit conversion from cl_N to numeric considered harmful. Using GiNaC::numeric for numerical computations incurs significant overhead, so one might want to do these computations using proper CLN types. Unfortunately, it's not easy due to automatic conversion from cln::cl_N to GiNaC::numeric. Here is a simple example: cl_N x, y; // initialize them return sin(x) + y*exp(y); The compiler complains about ambigously overloaded of functions, i.e. cl_N cln::sin(const cl_N&) versus numeric GiNaC::sin(const numeric&). Hence, I propose to disable *implicit* conversion from cl_N to numeric (this can be done by marking the numeric ctor as `explicit'). However, this change happens to be a bit nontrivial, because that evil conversion is used in GiNaC itself. So, I decided to rewrite those fragments of code. ----------------------------------------------------------------------- Summary of changes: ginac/inifcns_nstdsums.cpp | 87 ++++++++++++++---------- ginac/numeric.cpp | 163 ++++++++++++++++++++++++++----------------- ginac/numeric.h | 2 +- 3 files changed, 151 insertions(+), 101 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations