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Find the first occurrence of a string within the string.
std::size_tfind(string_viewsv,std::size_tpos = 0) const noexcept;
Returns the lowest index idx
greater than or equal to pos
where each element of sv
is equal to that of {begin() + idx, begin() + idx + sv.size()) if one exists, and npos otherwise.
Linear.
The first occurrence of sv
within the string starting at the index pos,
or npos
if none exists.
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The |
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The index to start searching at. The default argument for this
parameter is |