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New issue from Arthur: ""Effects: Equivalent to return" in [span.elem]"
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| <?xml version='1.0' encoding='utf-8' standalone='no'?> | ||
| <!DOCTYPE issue SYSTEM "lwg-issue.dtd"> | ||
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| <issue num="4011" status="New"> | ||
| <title>"<i>Effects</i>: Equivalent to return" in [span.elem]</title> | ||
| <section><sref ref="[span.elem]"/></section> | ||
| <submitter>Arthur O'Dwyer</submitter> | ||
| <date>09 Nov 2023</date> | ||
| <priority>99</priority> | ||
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| <discussion> | ||
| <p> | ||
| In reviewing the wording for <paper num="P2821"/> <tt>span.at()</tt>, it had been noticed that | ||
| <sref ref="[span.elem]"/> uses a lot of "<i>Effects</i>: Equivalent to return […];" which | ||
| could be simply "<i>Returns</i>: […]". | ||
| <p/> | ||
| For comparison, <sref ref="[string.view.access]"/> uses "<i>Returns</i>: ..." instead, so I | ||
| suggest that <sref ref="[span.elem]"/> should be consistent with that. | ||
| </p> | ||
| </discussion> | ||
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| <resolution> | ||
| <p> | ||
| This wording is relative to <paper num="N4964"/>. | ||
| </p> | ||
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| <ol> | ||
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| <li><p>Modify <sref ref="[span.elem]"/> as indicated:</p> | ||
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| <pre> | ||
| constexpr reference operator[](size_type idx) const; | ||
| </pre> | ||
| <blockquote> | ||
| <p> | ||
| -1- <i>Preconditions</i>: <tt>idx < size()</tt> is <tt>true</tt>. | ||
| <p/> | ||
| -2- <i><del>Effects</del><ins>Returns</ins></i>: <del>Equivalent to:</del> <tt><del>return</del> *(data() + idx)<del>;</del></tt><ins>.</ins> | ||
| <p/> | ||
| <ins>-?- <i>Throws</i>: Nothing.</ins> | ||
| </p> | ||
| </blockquote> | ||
| <pre> | ||
| constexpr reference front() const; | ||
| </pre> | ||
| <blockquote> | ||
| <p> | ||
| -3- <i>Preconditions</i>: <tt>empty()</tt> is <tt>false</tt>. | ||
| <p/> | ||
| -4- <i><del>Effects</del><ins>Returns</ins></i>: <del>Equivalent to:</del> <tt><del>return</del> *data()<del>;</del></tt><ins>.</ins> | ||
| <p/> | ||
| <ins>-?- <i>Throws</i>: Nothing.</ins> | ||
| </p> | ||
| </blockquote> | ||
| <pre> | ||
| constexpr reference back() const; | ||
| </pre> | ||
| <blockquote> | ||
| <p> | ||
| -5- <i>Preconditions</i>: <tt>empty()</tt> is <tt>false</tt>. | ||
| <p/> | ||
| -6- <i><del>Effects</del><ins>Returns</ins></i>: <del>Equivalent to:</del> <tt><del>return</del> *(data() + (size() - 1))<del>;</del></tt><ins>.</ins> | ||
| <p/> | ||
| <ins>-?- <i>Throws</i>: Nothing.</ins> | ||
| </p> | ||
| </blockquote> | ||
| <pre> | ||
| constexpr pointer data() const noexcept; | ||
| </pre> | ||
| <blockquote> | ||
| <p> | ||
| -7- <i><del>Effects</del><ins>Returns</ins></i>: <del>Equivalent to:</del> <tt><del>return</del> <i>data_</i><del>;</del></tt><ins>.</ins> | ||
| </p> | ||
| </blockquote> | ||
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| </li> | ||
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| </ol> | ||
| </resolution> | ||
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| </issue> |