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<a href="https://gitlab.rtems.org/amar">Amar Takhar</a>
commented on a
discussion on <a href="https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/803#note_135137">cpukit/libdebugger/rtems-debugger-aarch64.c</a>:
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<td class="old_line diff-line-num" data-linenumber="1027" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
1027
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<td class="new_line diff-line-num" data-linenumber="1027" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
1027
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #3a383f; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span class="line" data-lang="c"> <span class="n" style="color: #333333;">memcpy</span><span class="p">(</span> <span class="o" style="font-weight: 600;">&</span><span class="kr" style="font-weight: 600;">thread</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333333;">registers</span><span class="p">[</span> <span class="n" style="color: #333333;">offset</span> <span class="p">],</span> <span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333333;">value</span><span class="p">,</span> <span class="k" style="font-weight: 600;">sizeof</span><span class="p">(</span> <span class="kt" style="color: #445588; font-weight: 600;">uint64_t</span> <span class="p">)</span> <span class="p">);</span></span>
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<td class="old_line diff-line-num" data-linenumber="1028" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
1028
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<td class="new_line diff-line-num" data-linenumber="1028" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
1028
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #3a383f; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span class="line" data-lang="c"><span class="p">}</span></span>
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<td class="old_line diff-line-num" data-linenumber="1029" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
1029
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<td class="new_line diff-line-num" data-linenumber="1029" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #ececef; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fbfafd">
1029
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 14px; color: #3a383f; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'> <span class="line" data-lang="c"></span>
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<td class="old_line diff-line-num old" data-linenumber="1030" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
1030
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<td class="new_line diff-line-num old" data-linenumber="1030" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
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<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 14px; color: #3a383f; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'>-<span class="line" data-lang="c"><span class="k" style="font-weight: 600;">static</span> <span class="k" style="font-weight: 600;"><span class="idiff left deletion" style="background-color: #fac5cd;">const</span></span><span class="idiff right deletion" style="background-color: #fac5cd;"> </span><span class="kt" style="color: #445588; font-weight: 600;">uint64_t</span> <span class="nf" style="color: #990000; font-weight: 600;">rtems_debugger_get_int_reg</span><span class="p">(</span></span>
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<td class="old_line diff-line-num new" data-linenumber="1031" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
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<td class="new_line diff-line-num new" data-linenumber="1030" style="width: 35px; color: rgba(5,5,6,.24); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
1030
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<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 14px; color: #3a383f; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dcdcde;'>+<span class="line" data-lang="c"><span class="k" style="font-weight: 600;">static</span> <span class="kt" style="color: #445588; font-weight: 600;">uint64_t</span> <span class="nf" style="color: #990000; font-weight: 600;">rtems_debugger_get_int_reg</span><span class="p">(</span></span>
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<p dir="auto" style="color: #3a383f; margin: 0;" align="initial">That's interesting and makes sense but in this scenario the only way to enforce the constness is to have a way to permanently store the value and free it later when you don't need it? It certainly doesn't make sense to say your intent with <code style='font-size: 90%; color: #18171d; word-wrap: break-word; border-radius: .25rem; background-color: #ececef; margin-top: 0; font-weight: inherit; white-space: break-spaces; overflow-wrap: break-word; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; word-break: keep-all; padding: 0.125rem 0.25rem;'>const</code> when it can't be enforced however if we're going to add docs for this scenario we should at least say what developers should be doing to enforce it if you really need to in the case of a temporary return value as in this case.</p>
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