// ------------------------------- // // -------- Start of File -------- // // ------------------------------- // // ----------------------------------------------------------- // // C++ Source Code File Name: testprog.cpp // Compiler Used: MSVC, BCC32, GCC, HPUX aCC, SOLARIS CC // Produced By: glNET Software // File Creation Date: 09/05/1997 // Date Last Modified: 05/25/2001 // Copyright (c) 2001 glNET Software // ----------------------------------------------------------- // // ------------- Program Description and Details ------------- // // ----------------------------------------------------------- // /* This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA This is a test program for the FLOAT64 class. */ // ----------------------------------------------------------- // #include <iostream.h> #include <stdio.h> #include "gxfloat.h" const __DPFLOAT__ DPFLOATPositiveLimit = 1.7E+308; // (15 digit precision) const __DPFLOAT__ DPFLOATNegitiveLimit = 1.7E-308; // (15 digit precision) void PausePrg() { cout << endl; cout << "Press enter to continue..." << endl; cin.get(); } void SkipToEol(istream &s) // Used to clear istream { char c; s.clear(); while(s.get(c) && c != '\n') { ; } } void FWrite(char *fname) { gxFLOAT64 aa = 3.141592653589793; // Arc cosine of -1 equals pi cout.precision(15); // Show 15 places after the decimal point cout.setf(ios::fixed | ios::right); // Normal FP notation right justified cout << "Writing a gxFLOAT64 value " << aa << " to a file..." << endl; #ifndef __BCC_BUILDER_40__ // Do not synchronize with stdio under BCC32 ios::sync_with_stdio(); #endif FILE *stream; int numwritten; /* Open file in binary mode: */ if((stream = fopen( fname, "w+b" )) != NULL ) { numwritten = fwrite((char *)&aa, 1, sizeof(gxFLOAT64), stream ); printf( "Wrote %d items\n", numwritten ); fclose( stream ); } else printf( "Problem opening the file\n" ); } void FRead(char *fname) { gxFLOAT64 bb = 0; #ifndef __BCC_BUILDER_40__ // Do not synchronize with stdio under BCC32 ios::sync_with_stdio(); #endif FILE *stream; int numread; cout.precision(15); // Show 15 places after the decimal point cout.setf(ios::fixed | ios::right); // Normal FP notation right justified cout << "Reading back gxFLOAT64 value from the file..." << endl; if( (stream = fopen( fname, "r+b" )) != NULL ) { numread = fread((char *)&bb, 1, sizeof(gxFLOAT64), stream ); printf( "Number of items read = %d\n", numread ); fclose( stream ); } else printf( "File could not be opened\n" ); cout << "Value read from file = " << bb << endl; } template<class TYPEX, class TYPEY> inline void OperatorTest(TYPEX x, TYPEY y) { char *tf[2] = {"FALSE", "TRUE"}; cout << endl; cout << "Value x = " << x << ", Value y = " << y << endl; TYPEX z; cout << x << " += " << y << " = "; z = x; z += y; cout << z << endl; cout << x << " -= " << y << " = "; z = x; z -= y; cout << z << endl; cout << x << " *= " << y << " = "; z = x; z *= y; cout << z << endl; cout << x << " /= " << y << " = "; z = x; z /= y; cout << z << endl; cout << x << " * " << y << " = " ; z = (x * y); cout << z << endl; cout << x << " / " << y << " = " ; z = (x / y); cout << z << endl; cout << x << " + " << y << " = " ; z = (x + y); cout << z << endl; cout << x << " - " << y << " = " ; z = (x - y); cout << z << endl; cout << x << " == " << y << " = " << tf[(x == y)] << endl; cout << x << " != " << y << " = " << tf[(x != y)] << endl; cout << x << " <= " << y << " = " << tf[(x <= y)] << endl; cout << x << " >= " << y << " = " << tf[(x >= y)] << endl; cout << x << " < " << y << " = " << tf[(x < y)] << endl; cout << x << " > " << y << " = " << tf[(x > y)] << endl; cout << x << "++ = "; z = x; z++; cout << z << endl; cout << x << "-- = "; z = x; z--; cout << z << endl; cout << "++" << x << " = "; z = x; ++z; cout << z << endl; cout << "--" << x << " = "; z = x; --z; cout << z << endl; } int main() { gxFLOAT64 a = DPFLOATPositiveLimit; cout << "gxFLOAT64 positive limit = " << a << endl; gxFLOAT64 b(DPFLOATNegitiveLimit); cout << "gxFLOAT64 negitive limit = " << b << endl; PausePrg(); cout << "Testing gxFLOAT64 copy consturctor..." << endl; gxFLOAT64 c(a); cout << c << endl; cout << endl; cout << "Testing gxFLOAT64 assignment operator..." << endl; gxFLOAT64 d; d = a; cout << d << endl; PausePrg(); // Reading and writing a gxFLOAT64 value to a file char fname[255] = "testf64.out"; FILE *tmp; // Temporary file pointer tmp = ::fopen(fname, "rb"); if(tmp) FRead(fname); else FWrite(fname); PausePrg(); cout.precision(10); // Show 10 places after the decimal point cout.setf(ios::fixed | ios::right); // Normal FP notation right justified cout << "Testing overloaded operators (gxFLOAT64, gxFLOAT64)..." << endl; __DPFLOAT__ buf1, buf2, af, bf; cout << "Enter first floating point value: "; cin >> buf1; if(cin) { a = buf1; af = buf1; cout << "Enter second floating point value: "; cin >> buf2; } else { cout << "Input stream broken. Exiting..." << endl; return 0; } if(cin) { b = buf2; bf = buf2; } else { cout << "Input stream broken. Exiting..." << endl; return 0; } SkipToEol(cin); cout << endl; OperatorTest(a, b); PausePrg(); cout << "Testing overloaded operators (gxFLOAT64, __DPFLOAT__)..." << endl; OperatorTest(a, bf); PausePrg(); cout << "Testing overloaded operators (__DPFLOAT__, gxFLOAT64)..." << endl; OperatorTest(af, b); PausePrg(); cout << "Testing overloaded operators (gxFLOAT64, __LWORD__)..." << endl; OperatorTest(a, (__LWORD__)bf); PausePrg(); cout << "Testing overloaded operators (__LWORD__, gxFLOAT64)..." << endl; OperatorTest((__LWORD__)af, b); PausePrg(); cout << "Testing overloaded operators (gxFLOAT64, __WORD__)..." << endl; OperatorTest(a, (__WORD__)bf); PausePrg(); cout << "Testing overloaded operators (__WORD__, gxFLOAT64)..." << endl; OperatorTest((__WORD__)af, b); PausePrg(); cout << "Testing overloaded operators (gxFLOAT64, __SWORD__)..." << endl; OperatorTest(a, (__SWORD__)bf); PausePrg(); cout << "Testing overloaded operators (__SWORD__, gxFLOAT64)..." << endl; OperatorTest((__SWORD__)af, b); PausePrg(); cout << "Testing overloaded operators (gxFLOAT64, __UWORD__)..." << endl; OperatorTest(a, (__UWORD__)bf); PausePrg(); cout << "Testing overloaded operators (__UWORD__, gxFLOAT64)..." << endl; OperatorTest((__UWORD__)af, b); PausePrg(); cout << "Testing overloaded operators (gxFLOAT64, __USWORD__)..." << endl; OperatorTest(a, (__USWORD__)bf); PausePrg(); cout << "Testing overloaded operators (__USWORD__, gxFLOAT64)..." << endl; OperatorTest((__USWORD__)af, b); PausePrg(); cout << "Testing overloaded operators (gxFLOAT64, __SBYTE__)..." << endl; OperatorTest(a, 'B'); PausePrg(); cout << "Testing overloaded operators (__SBYTE__, gxFLOAT64)..." << endl; OperatorTest('A', b); return 0; } // ----------------------------------------------------------- // // ------------------------------- // // --------- End of File --------- // // ------------------------------- //