/* WARNING: This file was generated by dkct. Changes you make here will be lost if dkct is run again! You should modify the original source and run dkct on it. Original source: dk4fpe.ctr */ /* Copyright (C) 2016-2017, Dirk Krause Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above opyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of the author nor the names of contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /** @file dk4fpe.c The dk4fpe module. */ #line 200 "dk4fpe.ctr" #include "dk4fpe.h" #ifdef _WIN32 /** Exception set for errors. */ static const unsigned int dk4fpe_errors = _SW_ZERODIVIDE | _SW_INVALID | _SW_OVERFLOW | _SW_UNDERFLOW; #else /** Exception set for errors. */ static const int dk4fpe_errors = FE_DIVBYZERO | FE_INVALID | FE_OVERFLOW | FE_UNDERFLOW; #endif int dk4fpe_check_error(dk4_fpe_t fpe, dk4_er_t *erp) { int back = 0; if ((dk4_fpe_t)0 != (dk4fpe_errors & fpe)) { back = 1; #ifdef _WIN32 if ((dk4_fpe_t)0 != (_SW_INVALID & fpe)) #else if ((dk4_fpe_t)0 != (FE_INVALID & fpe)) #endif { dk4error_set_simple_error_code(erp, DK4_E_MATH_INVALID); } else { #ifdef _WIN32 if ((dk4_fpe_t)0 != (_SW_ZERODIVIDE & fpe)) #else if ((dk4_fpe_t)0 != (FE_DIVBYZERO & fpe)) #endif { dk4error_set_simple_error_code(erp, DK4_E_MATH_DIVZERO); } else { #ifdef _WIN32 if ((dk4_fpe_t)0 != (_SW_OVERFLOW & fpe)) #else if ((dk4_fpe_t)0 != (FE_OVERFLOW & fpe)) #endif { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } else { #ifdef _WIN32 if ((dk4_fpe_t)0 != (_SW_UNDERFLOW & fpe)) #else if ((dk4_fpe_t)0 != (FE_UNDERFLOW & fpe)) #endif { dk4error_set_simple_error_code(erp, DK4_E_MATH_UNDERFLOW); } } } } } return back; } int dk4fpe_clear(dk4_er_t *erp) { #ifdef _WIN32 _clearfp(); return 1; #else #if DK4_HAVE_FETESTEXCEPT int back = 0; if (0 == feclearexcept(FE_ALL_EXCEPT)) { back = 1; } else { dk4error_set_simple_error_code(erp, DK4_E_SYSTEM); } return back; #else dk4error_set_simple_error_code(erp, DK4_E_NOT_SUPPORTED); return 0; #endif #endif } int dk4fpe_get(dk4_fpe_t *dptr, dk4_er_t *erp) { int back = 0; if (NULL != dptr) { #ifdef _WIN32 *dptr = (dk4_fpe_t)_statusfp(); back = 1; #else #if DK4_HAVE_FETESTEXCEPT *dptr = (dk4_fpe_t)fetestexcept(FE_ALL_EXCEPT); back = 1; #else dk4error_set_simple_error_code(erp, DK4_E_NOT_SUPPORTED); #endif #endif } else { dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS); } return back; } int dk4fpe_get_clear(dk4_fpe_t *dptr, dk4_er_t *erp) { int back = 0; if (NULL != dptr) { #ifdef _WIN32 *dptr = _clearfp(); back = 1; #else #if DK4_HAVE_FETESTEXCEPT *dptr = (dk4_fpe_t)fetestexcept(FE_ALL_EXCEPT); if (0 == feclearexcept(FE_ALL_EXCEPT)) { back = 1; } else { dk4error_set_simple_error_code(erp, DK4_E_SYSTEM); } #else dk4error_set_simple_error_code(erp, DK4_E_NOT_SUPPORTED); #endif #endif } else { dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS); } return back; } int dk4fpe_is_finite(double d) { int back = 0; #ifdef _WIN32 back = ((0 != _finite(d)) ? 1 : 0); #else back = ((0 != isfinite(d)) ? 1 : 0); #endif return back; } int dk4fpe_is_normal(double d) { int back = 0; #ifdef _WIN32 switch (_fpclass(d)) { case _FPCLASS_NN : case _FPCLASS_NZ : case _FPCLASS_PZ : case _FPCLASS_PN : { back = 1; } break; } #else back = ((0 != isnormal(d)) ? 1 : 0); #endif return back; }