https://blog.zrj.me/tags/%E5%AD%97%E7%AC%A6%E7%BC%96%E7%A0%81/ Recent content in 字符编码 on ZRJ | 学习笔记 Hugo -- gohugo.io zh-CN Tue, 31 Dec 2013 11:20:18 +0800 https://blog.zrj.me/posts/2013-12-31-gcc-%E7%BC%96%E8%AF%91%E6%97%B6%E8%BE%93%E5%87%BA%E6%9C%89%E9%97%AE%E5%8F%B7/ Tue, 31 Dec 2013 11:20:18 +0800 https://blog.zrj.me/posts/2013-12-31-gcc-%E7%BC%96%E8%AF%91%E6%97%B6%E8%BE%93%E5%87%BA%E6%9C%89%E9%97%AE%E5%8F%B7/ <p>今天切到一台新的机器上去开发，编译的时候发现 gcc 的输出带着问号，就像这个样子</p> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl">src/BusiObj.cpp: In member <span class="k">function</span> ?.nt CBusiObj::DecodeUdp<span class="o">(</span>int<span class="p">&amp;</span>, int<span class="p">&amp;</span>, const char*, int<span class="o">)</span>?. </span></span><span class="line"><span class="cl">src/BusiObj.cpp:287: warning: format ?.d?.expects <span class="nb">type</span> ?.nt?. but argument <span class="m">6</span> has <span class="nb">type</span> ?.ong unsigned int? </span></span><span class="line"><span class="cl">src/BusiObj.cpp:300: warning: format ?.u?.expects <span class="nb">type</span> ?.nsigned int?. but argument <span class="m">7</span> has <span class="nb">type</span> ?._time_t? </span></span></code></pre></div><p>看起来十分难受，查了一下是终端字符编码的问题，用 echo $LANG 看一下系统的编码，把终端的编码跟随的调整一下就可以了，修改完成后就是正常的了</p> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl">src/BusiObj.cpp: In member <span class="k">function</span> ‘int CBusiObj::DecodeUdp<span class="o">(</span>int<span class="p">&amp;</span>, int<span class="p">&amp;</span>, const char*, int<span class="o">)</span>’: </span></span><span class="line"><span class="cl">src/BusiObj.cpp:287: warning: format ‘%d’ expects <span class="nb">type</span> ‘int’, but argument <span class="m">6</span> has <span class="nb">type</span> ‘long unsigned int’ </span></span><span class="line"><span class="cl">src/BusiObj.cpp:300: warning: format ‘%u’ expects <span class="nb">type</span> ‘unsigned int’, but argument <span class="m">7</span> has <span class="nb">type</span> ‘__time_t’ </span></span></code></pre></div>