Mercurial > projects > ldc
view dmd2/complex_t.h @ 1650:40bd4a0d4870
Update to work with LLVM 2.7.
Removed use of dyn_cast, llvm no compiles
without exceptions and rtti by
default. We do need exceptions for the libconfig stuff, but rtti isn't
necessary (anymore).
Debug info needs to be rewritten, as in LLVM 2.7 the format has
completely changed. To have something to look at while rewriting, the
old code has been wrapped inside #ifndef DISABLE_DEBUG_INFO , this means
that you have to define this to compile at the moment.
Updated tango 0.99.9 patch to include updated EH runtime code, which is
needed for LLVM 2.7 as well.
author | Tomas Lindquist Olsen |
---|---|
date | Wed, 19 May 2010 12:42:32 +0200 |
parents | f04dde6e882c |
children |
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// Compiler implementation of the D programming language // Copyright (c) 1999-2006 by Digital Mars // All Rights Reserved // written by Walter Bright and Burton Radons // http://www.digitalmars.com // License for redistribution is by either the Artistic License // in artistic.txt, or the GNU General Public License in gnu.txt. // See the included readme.txt for details. #ifndef DMD_COMPLEX_T_H #define DMD_COMPLEX_T_H /* Roll our own complex type for compilers that don't support complex */ struct complex_t { long double re; long double im; complex_t() { this->re = 0; this->im = 0; } complex_t(long double re) { this->re = re; this->im = 0; } complex_t(long double re, long double im) { this->re = re; this->im = im; } complex_t operator + (complex_t y) { complex_t r; r.re = re + y.re; r.im = im + y.im; return r; } complex_t operator - (complex_t y) { complex_t r; r.re = re - y.re; r.im = im - y.im; return r; } complex_t operator - () { complex_t r; r.re = -re; r.im = -im; return r; } complex_t operator * (complex_t y) { return complex_t(re * y.re - im * y.im, im * y.re + re * y.im); } complex_t operator / (complex_t y) { long double abs_y_re = y.re < 0 ? -y.re : y.re; long double abs_y_im = y.im < 0 ? -y.im : y.im; long double r, den; if (abs_y_re < abs_y_im) { r = y.re / y.im; den = y.im + r * y.re; return complex_t((re * r + im) / den, (im * r - re) / den); } else { r = y.im / y.re; den = y.re + r * y.im; return complex_t((re + r * im) / den, (im - r * re) / den); } } operator bool () { return re || im; } int operator == (complex_t y) { return re == y.re && im == y.im; } int operator != (complex_t y) { return re != y.re || im != y.im; } }; inline complex_t operator * (long double x, complex_t y) { return complex_t(x) * y; } inline complex_t operator * (complex_t x, long double y) { return x * complex_t(y); } inline complex_t operator / (complex_t x, long double y) { return x / complex_t(y); } inline long double creall(complex_t x) { return x.re; } inline long double cimagl(complex_t x) { return x.im; } #endif