diff options
Diffstat (limited to 'html/092persist.cc.html')
| -rw-r--r-- | html/092persist.cc.html | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/html/092persist.cc.html b/html/092persist.cc.html index 87682997..6c1e722c 100644 --- a/html/092persist.cc.html +++ b/html/092persist.cc.html @@ -82,18 +82,13 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span <span class="Delimiter">}</span> <span class="Delimiter">:(code)</span> +<span class="Comment">// <a href="http://cpp.indi.frih.net/blog/2014/09/how-to-read-an-entire-file-into-memory-in-cpp">http://cpp.indi.frih.net/blog/2014/09/how-to-read-an-entire-file-into-memory-in-cpp</a></span> string slurp<span class="Delimiter">(</span><span class="Normal">const</span> string& filename<span class="Delimiter">)</span> <span class="Delimiter">{</span> - ostringstream result<span class="Delimiter">;</span> ifstream fin<span class="Delimiter">(</span>filename<span class="Delimiter">.</span>c_str<span class="Delimiter">());</span> fin<span class="Delimiter">.</span>peek<span class="Delimiter">();</span> - <span class="Normal">if</span> <span class="Delimiter">(</span>!fin<span class="Delimiter">)</span> <span class="Identifier">return</span> result<span class="Delimiter">.</span>str<span class="Delimiter">();</span> <span class="Comment">// don't bother checking errno</span> - <span class="Normal">const</span> <span class="Normal">int</span> N = <span class="Constant">1024</span><span class="Delimiter">;</span> - <span class="Normal">char</span> buf[N]<span class="Delimiter">;</span> - <span class="Normal">while</span> <span class="Delimiter">(</span>has_data<span class="Delimiter">(</span>fin<span class="Delimiter">))</span> <span class="Delimiter">{</span> - bzero<span class="Delimiter">(</span>buf<span class="Delimiter">,</span> N<span class="Delimiter">);</span> - fin<span class="Delimiter">.</span>read<span class="Delimiter">(</span>buf<span class="Delimiter">,</span> N-<span class="Constant">1</span><span class="Delimiter">);</span> <span class="Comment">// leave at least one null</span> - result << buf<span class="Delimiter">;</span> - <span class="Delimiter">}</span> + <span class="Normal">if</span> <span class="Delimiter">(</span>!fin<span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">""</span><span class="Delimiter">;</span> <span class="Comment">// don't bother checking errno</span> + ostringstream result<span class="Delimiter">;</span> + result << fin<span class="Delimiter">.</span>rdbuf<span class="Delimiter">();</span> fin<span class="Delimiter">.</span>close<span class="Delimiter">();</span> <span class="Identifier">return</span> result<span class="Delimiter">.</span>str<span class="Delimiter">();</span> <span class="Delimiter">}</span> |