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Refactored the operator >> and Node::Read default functions, as well as the conversion functions, to more easily read new types as keys (this uncovered an error, in example 2.11 of the spec)

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This commit is contained in:
Jesse Beder
2009-09-06 20:52:45 +00:00
parent 9a1f4f9a0d
commit e7ac6b3bf1
6 changed files with 137 additions and 41 deletions
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50
include/conversion.h
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@@ -10,36 +10,34 @@
namespace YAML
{
template <typename T>
struct Converter {
static bool Convert(const std::string& input, T& output);
};
template <typename T>
bool Convert(const std::string& input, T& output) {
return Converter<T>::Convert(input, output);
}
// this is the one to specialize
template <typename T>
inline bool Converter<T>::Convert(const std::string& input, T& output) {
std::stringstream stream(input);
stream >> output;
return !stream.fail();
}
// specializations
template <>
inline bool Converter<std::string>::Convert(const std::string& input, std::string& output) {
inline bool Convert(const std::string& input, std::string& output) {
output = input;
return true;
}
template <>
bool Converter<bool>::Convert(const std::string& input, bool& output);
template <>
bool Converter<_Null>::Convert(const std::string& input, _Null& output);
bool Convert(const std::string& input, bool& output);
bool Convert(const std::string& input, _Null& output);
#define YAML_MAKE_STREAM_CONVERT(type) \
inline bool Convert(const std::string& input, type& output) { \
std::stringstream stream(input); \
stream >> output; \
return !stream.fail(); \
}
YAML_MAKE_STREAM_CONVERT(char)
YAML_MAKE_STREAM_CONVERT(unsigned char)
YAML_MAKE_STREAM_CONVERT(int)
YAML_MAKE_STREAM_CONVERT(unsigned int)
YAML_MAKE_STREAM_CONVERT(short)
YAML_MAKE_STREAM_CONVERT(unsigned short)
YAML_MAKE_STREAM_CONVERT(long)
YAML_MAKE_STREAM_CONVERT(unsigned long)
YAML_MAKE_STREAM_CONVERT(float)
YAML_MAKE_STREAM_CONVERT(double)
YAML_MAKE_STREAM_CONVERT(long double)
#undef YAML_MAKE_STREAM_CONVERT
}
#endif // CONVERSION_H_62B23520_7C8E_11DE_8A39_0800200C9A66