mirror of https://github.com/axmolengine/axmol.git
49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
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#ifndef STRINGSOURCE_H_62B23520_7C8E_11DE_8A39_0800200C9A66
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#define STRINGSOURCE_H_62B23520_7C8E_11DE_8A39_0800200C9A66
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#if defined(_MSC_VER) || \
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(defined(__GNUC__) && (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || \
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(__GNUC__ >= 4)) // GCC supports "pragma once" correctly since 3.4
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#pragma once
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#endif
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#include <cstddef>
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namespace YAML {
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class StringCharSource {
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public:
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StringCharSource(const char* str, std::size_t size)
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: m_str(str), m_size(size), m_offset(0) {}
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operator bool() const { return m_offset < m_size; }
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char operator[](std::size_t i) const { return m_str[m_offset + i]; }
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bool operator!() const { return !static_cast<bool>(*this); }
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const StringCharSource operator+(int i) const {
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StringCharSource source(*this);
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if (static_cast<int>(source.m_offset) + i >= 0)
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source.m_offset += i;
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else
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source.m_offset = 0;
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return source;
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}
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StringCharSource& operator++() {
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++m_offset;
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return *this;
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}
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StringCharSource& operator+=(std::size_t offset) {
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m_offset += offset;
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return *this;
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}
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private:
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const char* m_str;
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std::size_t m_size;
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std::size_t m_offset;
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};
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}
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#endif // STRINGSOURCE_H_62B23520_7C8E_11DE_8A39_0800200C9A66
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