C++ (Cpp) IArray::begin Examples

Example #1

File: ArrayTest.cpp Project: ichenq/PocoNet

TEST(ArrayTest, testAlgorithm)
{
    // create and initialize array
	const int SIZE = 10;
	typedef Poco::Array<int,SIZE> IArray;
	IArray a = { { 1, 2, 3, 4, 5 } };
	IArray b(a);

    // modify elements directly
    for (unsigned i=0; i<b.size(); ++i) {
        ++b[i];
    }

    // try iterators
	for (IArray::iterator pos =b.begin(); pos<b.end(); ++pos) {
		--(*pos);
    }

    for (unsigned i=0; i<a.size(); ++i) {
		EXPECT_TRUE(a[i] == b[i]);
    }

    // change order using an STL algorithm
	std::reverse(a.begin(),a.end());

    for (unsigned i=0; i<a.size(); ++i) {
		EXPECT_TRUE(a[SIZE-i-1] == b[i]);
    }

	std::reverse(a.begin(),a.end());

    // negate elements using STL framework
	std::transform(	a.begin(),a.end(),    // source
					a.begin(),            // destination
					std::negate<int>());  // operation

    for (unsigned i=0; i<a.size(); ++i) {
		EXPECT_TRUE(a[i] == -b[i]);
    }

}