mirror of https://github.com/CGAL/cgal
74 lines
1.5 KiB
C++
74 lines
1.5 KiB
C++
#include <iostream>
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#include <CGAL/Object.h>
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#include <CGAL/assertions.h>
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#include <CGAL/use.h>
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#include <boost/variant.hpp>
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#include <boost/optional.hpp>
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void from_opt_var() {
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int i = 0;
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double j = 0.0;
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CGAL_USE(i); CGAL_USE(j);
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boost::optional< boost::variant<int, char, double> > v(23);
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CGAL::Object o = v;
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CGAL_assertion(!o.empty());
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CGAL_assertion(CGAL::assign(i, o));
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CGAL_assertion(i == 23);
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//reassign the variant and assign it again
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v = 2.0;
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o = v;
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CGAL_assertion(!CGAL::assign(i, o));
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CGAL_assertion(CGAL::assign(j, o));
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CGAL_assertion(j == 2.0);
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//empty optional
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boost::optional< boost::variant<int, char, double> > v2;
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CGAL::Object o2 = v2;
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CGAL_assertion(o2.empty());
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}
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void from_var() {
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int i = 0;
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CGAL_USE(i);
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boost::variant<int, char, double> v(23);
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CGAL::Object o = v;
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CGAL_assertion(!o.empty());
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CGAL_assertion(CGAL::assign(i, o));
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CGAL_assertion(i == 23);
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}
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struct Foo {
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};
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void make_object_and_assign() {
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int i = 23, j = 0;
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CGAL_USE(j);
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CGAL::Object o = CGAL::make_object(i);
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CGAL_assertion(CGAL::assign(j, o));
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CGAL_assertion(j == i);
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CGAL_assertion(CGAL::object_cast<Foo>(&o) == nullptr);
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CGAL_assertion(CGAL::object_cast<int>(&o) != nullptr);
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}
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void safe_bool() {
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CGAL::Object o;
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CGAL_assertion(!o);
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CGAL::Object o2 = CGAL::make_object(23);
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CGAL_assertion(o2);
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// dummy code, we want to bork on this
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// if(o == o2) ;
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// if(o < 0) ;
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}
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void test_object() {
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make_object_and_assign();
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from_opt_var();
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from_var();
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}
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int main() {
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test_object();
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}
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