Return the length (in bytes) of the specified numCodePoints UTF-8 encodings in the specified string, or a value less than 0 if string contains less than numCodePoints encodings. The behavior is undefined unless string refers to valid UTF-8. Note that string may contain more than numCodePoints encodings in which case the trailing ones are ignored.
Declared in <bdlde_utf8util.h>
static
Utf8Util::IntPtr
numBytesIfValid(
std::string_view const& string,
IntPtr numCodePoints);
DEPRECATED: Use numBytesRaw instead.