本文整理汇总了C++中auto_ptr::Peek方法的典型用法代码示例。如果您正苦于以下问题：C++ auto_ptr::Peek方法的具体用法？C++ auto_ptr::Peek怎么用？C++ auto_ptr::Peek使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类auto_ptr的用法示例。
在下文中一共展示了auto_ptr::Peek方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: testPeek
/**
* Test that Peek behaves
*/
void IOQueueTest::testPeek() {
uint8_t data1[] = {0, 1, 2, 3, 4, 5, 6, 7, 8};
m_buffer->Write(data1, sizeof(data1));
OLA_ASSERT_EQ(9u, m_buffer->Size());
OLA_ASSERT_FALSE(m_buffer->Empty());
const unsigned int DATA_SIZE = 20;
uint8_t *output_data = new uint8_t[DATA_SIZE];
// peek at the first four bytes
unsigned int output_size = m_buffer->Peek(output_data, 4);
ASSERT_DATA_EQUALS(__LINE__, data1, 4, output_data, output_size);
OLA_ASSERT_EQ(9u, m_buffer->Size());
// peek at the first 9 bytes
output_size = m_buffer->Peek(output_data, 9);
ASSERT_DATA_EQUALS(__LINE__, data1, 9, output_data, output_size);
OLA_ASSERT_EQ(9u, m_buffer->Size());
// peek at more bytes that exist in the buffer
output_size = m_buffer->Peek(output_data, DATA_SIZE);
OLA_ASSERT_EQ(9u, output_size);
ASSERT_DATA_EQUALS(__LINE__, data1, sizeof(data1), output_data, output_size);
OLA_ASSERT_EQ(9u, m_buffer->Size());
// Now try a buffer with smaller blocks
MemoryBlockPool pool(4);
IOQueue queue(&pool);
queue.Write(data1, sizeof(data1));
OLA_ASSERT_EQ(9u, queue.Size());
// peek at he same amount as the first block size
output_size = queue.Peek(output_data, 4);
ASSERT_DATA_EQUALS(__LINE__, data1, 4, output_data, output_size);
OLA_ASSERT_EQ(9u, queue.Size());
OLA_ASSERT_FALSE(queue.Empty());
// peek at data from more than one block
output_size = queue.Peek(output_data, 6);
ASSERT_DATA_EQUALS(__LINE__, data1, 6, output_data, output_size);
OLA_ASSERT_EQ(9u, queue.Size());
OLA_ASSERT_FALSE(queue.Empty());
// peek at data on the two block boundry
output_size = queue.Peek(output_data, 8);
ASSERT_DATA_EQUALS(__LINE__, data1, 8, output_data, output_size);
OLA_ASSERT_EQ(9u, queue.Size());
OLA_ASSERT_FALSE(queue.Empty());
// peek at all the data
output_size = queue.Peek(output_data, 9);
ASSERT_DATA_EQUALS(__LINE__, data1, 9, output_data, output_size);
OLA_ASSERT_EQ(9u, queue.Size());
OLA_ASSERT_FALSE(queue.Empty());
// peek at more data than what exists
output_size = queue.Peek(output_data, DATA_SIZE);
OLA_ASSERT_EQ(9u, output_size);
ASSERT_DATA_EQUALS(__LINE__, data1, 9, output_data, output_size);
OLA_ASSERT_EQ(9u, queue.Size());
OLA_ASSERT_FALSE(queue.Empty());
delete[] output_data;
}