36 lines
965 B
C++
36 lines
965 B
C++
#pragma once
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#include <cstddef>
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#include <cstdint>
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#include <cstring>
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class span_writer {
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uint8_t *m_data;
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size_t m_capacity;
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size_t m_size = 0;
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public:
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span_writer(uint8_t *data, size_t capacity) : m_data(data), m_capacity(capacity) {}
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void push_back(uint8_t v) {
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if (m_size < m_capacity) m_data[m_size++] = v;
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}
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template <class It>
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void insert(uint8_t *, It first, It last) {
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while (first != last && m_size < m_capacity)
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m_data[m_size++] = *first++;
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}
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size_t size() const { return m_size; }
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size_t capacity() const { return m_capacity; }
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bool full() const { return m_size >= m_capacity; }
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uint8_t *data() { return m_data; }
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const uint8_t *data() const { return m_data; }
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uint8_t *begin() { return m_data; }
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uint8_t *end() { return m_data + m_size; }
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const uint8_t *begin() const { return m_data; }
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const uint8_t *end() const { return m_data + m_size; }
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};
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