Mercurial > projects > ldc
view dmd/complex_t.h @ 948:780530d1cad3
Revert templates to old behavior.
While emitting a template instantiation only once is good for compile times
and binary sizes, it doesn't work with linkonce linkage as inlined function
bodies could be discarded. Since we don't want to inhibit inlining, templates
are reverted to the previous behavior, where an instantiation is emitted for
each module using it.
In the future, a custom inlining pass may allow us to switch back to
common/weak linkage and reenable smart template instance emission.
author | Christian Kamm <kamm incasoftware de> |
---|---|
date | Sun, 08 Feb 2009 21:44:46 +0100 |
parents | c53b6e3fe49a |
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