ttmath_t1.cpp File Reference

This is a test file demonstrating the usage of the ttmath library. More...

#include "../../homog2d.hpp"

Include dependency graph for ttmath_t1.cpp:

Macros
#define	HOMOG2D_USE_TTMATH

Typedefs
using	BigM32 = ttmath::Big< 3, 2 >

Functions
int	main ()

Detailed Description

This is a test file demonstrating the usage of the ttmath library.

See homog2d_manual.md::bignum

Build and run with $ make test-bn

Macro Definition Documentation

HOMOG2D_USE_TTMATH

#define HOMOG2D_USE_TTMATH

Typedef Documentation

BigM32

using BigM32 = ttmath::Big<3,2>

Function Documentation

main()

int main

(

)

{
    Point2d_<ttmath::Big<3,2>> p1;
    Point2d_<ttmath::Big<1,2>> p2(10,10);
    std::cout << "FP size of p1: mantissa=" << p1.dsize().first << ", exponent=" << p1.dsize().second << " bits\n";
    std::cout << "FP size of p2: mantissa=" << p2.dsize().first << ", exponent=" << p2.dsize().second << " bits\n";

    auto li = p1*p2;    // automatic type conversions between two types with different underlying numerical types
    std::cout << li << '\n';
    std::cout << "FP type of line=" << getString(li.dtype()) << '\n';
    std::cout << "FP size of line: mantissa=" << li.dsize().first << ", exponent=" << li.dsize().second << " bits\n";

    Segment                    s0( 0,0,45,45);    // uses the default ttmath type
    Segment_<ttmath::Big<3,1>> s1( -8,5,10,-15);  // specific type
    Segment_<BigM32>           s2( 1,2,3,4 );     // this can be easier to read
    auto it0 = s1.intersects( s2 );
    auto it = s1.intersects( li );
    if( it() )
        std::cout << "Intersection of segment and line: " << it.get() << '\n';

    std::cout << "FP type of s1=" << getString(s1.dtype()) << '\n';
    std::cout << "FP size of s0: mantissa=" << s0.dsize( ).first << ", exponent=" << s0.dsize().second << " bits\n";
    std::cout << "FP size of s1: mantissa=" << s1.dsize( ).first << ", exponent=" << s1.dsize().second << " bits\n";

    Circle_<BigM32> cir;
    FRect_<BigM32> rect;

    auto it2 = cir.intersects(s1);
    auto it3 = cir.intersects(li);
    auto it4 = cir.intersects(rect);
    auto it5 = li.intersects(rect);
    auto it6 = s1.intersects(rect);
}

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