tmp/tmpudks5c0s/{from.md → to.md}
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##### `basic_string::find_first_not_of` <a id="string.find.first.not.of">[[string.find.first.not.of]]</a>
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``` cpp
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size_type find_first_not_of(basic_string_view<charT, traits> sv,
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size_type pos = 0) const noexcept;
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```
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*Effects:* Determines the lowest position `xpos`, if possible, such that
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both of the following conditions hold:
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- `pos <= xpos` and `xpos < size()`;
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- `traits::eq(at(xpos), sv.at(I))` for no element `I` of the data
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referenced by `sv`.
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*Returns:* `xpos` if the function can determine such a value for `xpos`.
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Otherwise, returns `npos`.
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``` cpp
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size_type find_first_not_of(const basic_string& str, size_type pos = 0) const noexcept;
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```
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*Effects:* Equivalent to:
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``` cpp
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return find_first_not_of(basic_string_view<charT, traits>(str), pos);
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```
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``` cpp
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size_type find_first_not_of(const charT* s, size_type pos, size_type n) const;
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```
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*Returns:*
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`find_first_not_of(basic_string_view<charT, traits>(s, n), pos)`.
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``` cpp
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size_type find_first_not_of(const charT* s, size_type pos = 0) const;
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```
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*Requires:* `s` points to an array of at least `traits::length(s) + 1`
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elements of `charT`.
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*Returns:*
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`find_first_not_of(basic_string_view<charT, traits>(s), pos)`.
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``` cpp
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size_type find_first_not_of(charT c, size_type pos = 0) const;
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```
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*Returns:* `find_first_not_of(basic_string(1, c), pos)`.
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