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Function std.utf.byDchar

Iterate an input range of characters by char, wchar, or dchar.

UTF sequences that cannot be converted to UTF-8 are replaced by U+FFFD per "5.22 Best Practice for U+FFFD Substitution" of the Unicode Standard 6.2. Hence, byChar, byWchar, and byDchar are not symmetric. This algorithm is lazy, and does not allocate memory. Purity, nothrow, and safety are inferred from the r parameter.

Prototypes

auto byDchar(R)(
  R r
)
if (isAutodecodableString!R);

auto ref byDchar(R)(
  R r
)
if (!isAutodecodableString!R && isInputRange!R && isSomeChar!(ElementEncodingType!R));

Parameters

NameDescription
r input range of characters, or array of characters

Returns

input range

Authors

Walter Bright and Jonathan M Davis

License

Boost License 1.0.

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