is_utf8_cstring.hpp

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#ifndef RITSUKO_IS_UTF8_STRING_HPP
#define RITSUKO_IS_UTF8_STRING_HPP
 
#include <type_traits>
#include <cstdint>
#include "H5Cpp.h"
 
namespace ritsuko {
 
namespace hdf5 {
 
inline bool is_utf8_cstring(const H5::StrType& stype) {
    const auto spad = stype.getStrpad();
    if (spad == H5T_STR_NULLTERM || spad == H5T_STR_NULLPAD) {
        const auto cset = stype.getCset();
        return (cset == H5T_CSET_ASCII || cset == H5T_CSET_UTF8);
    } else {
        return false;
    }
}
 
inline bool is_utf8_cstring(const H5::DataSet& data) {
    if (data.getTypeClass() != H5T_STRING) {
        return false;
    }
    return is_utf8_cstring(H5::StrType(data));
}
 
inline bool is_utf8_cstring(const H5::Attribute& attr) {
    if (attr.getTypeClass() != H5T_STRING) {
        return false;
    }
    return is_utf8_cstring(attr.getStrType());
}
 
// For back-compatiblity.
inline bool is_utf8_string(const H5::StrType& stype) {
    return is_utf8_cstring(stype);
}
 
inline bool is_utf8_string(const H5::DataSet& data) {
    return is_utf8_cstring(data);
}
 
inline bool is_utf8_string(const H5::Attribute& attr) {
    return is_utf8_cstring(attr);
}
}
 
}
 
#endif