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| author | Bill Wendling <isanbard@gmail.com> | 2007-11-06 09:36:34 +0000 |
|---|---|---|
| committer | Bill Wendling <isanbard@gmail.com> | 2007-11-06 09:36:34 +0000 |
| commit | 4f6766d41e867948357e95168c40f20465ee27c6 (patch) | |
| tree | 0890efa8e348e122f19ed7c60e0922da903b4854 /docs/CodingStandards.html | |
| parent | 8fc9a1022108e1afa8077e3e0a7b8a70eb3c3bc3 (diff) | |
| download | external_llvm-4f6766d41e867948357e95168c40f20465ee27c6.zip external_llvm-4f6766d41e867948357e95168c40f20465ee27c6.tar.gz external_llvm-4f6766d41e867948357e95168c40f20465ee27c6.tar.bz2 | |
Clarify some of the iostreams stuff.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43766 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'docs/CodingStandards.html')
| -rw-r--r-- | docs/CodingStandards.html | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/docs/CodingStandards.html b/docs/CodingStandards.html index 6cfe542..2121714 100644 --- a/docs/CodingStandards.html +++ b/docs/CodingStandards.html @@ -505,14 +505,14 @@ library. There are two problems with this:</p> <ol> <li>The time to run the static c'tors impacts startup time of - applications—a critical time for gui apps.</li> + applications—a critical time for GUI apps.</li> <li>The static c'tors cause the app to pull many extra pages of memory off the - disk: both the code for the static c'tors in each .o file and the small - amount of data that gets touched. In addition, touched/dirty pages put - more pressure on the VM system on low-memory machines.</li> + disk: both the code for the static c'tors in each <tt>.o</tt> file and the + small amount of data that gets touched. In addition, touched/dirty pages + put more pressure on the VM system on low-memory machines.</li> </ol> -<div style="align: center"> +<div align="center"> <table> <tbody> <tr> @@ -527,7 +527,7 @@ library. There are two problems with this:</p> <td align="left"><pre>DEBUG(std::cerr << ...); DEBUG(dump(std::cerr));</pre></td> <td align="left"><pre>DOUT << ...; -dump(DOUT);</pre></td> +DEBUG(dump(DOUT));</pre></td> </tr> <tr> <td align="left"><pre>std::cerr << "Hello world\n";</pre></td> @@ -557,17 +557,17 @@ dump(DOUT);</pre></td> <td align="left"><pre>void print(std::ostream &Out); // ... print(std::cerr);</pre></td> - <td align="left"><pre>void print(std::ostream &Out); -void print(std::ostream *Out) { if (Out) print(*Out) } + <td align="left"><pre>void print(llvm::OStream Out);<sup>1</sup> // ... print(llvm::cerr);</pre> +</td> </tbody> </table> +</div> + <div class="doc_text"> -<i>N.B.</i> The second <tt>print</tt> method is called by the <tt>print</tt> -expression. It prevents the execution of the first <tt>print</tt> method if the -stream is <tt>cnull</tt>.</div></td> - </tbody> -</table> +<p><sup>1</sup><tt>llvm::OStream</tt> is a light-weight class so it should never +be passed by reference. This is important because in some configurations, +<tt>DOUT</tt> is an rvalue.</p> </div> </div> |