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Diffstat (limited to 'www/diagnostics.html')
| -rw-r--r-- | www/diagnostics.html | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/www/diagnostics.html b/www/diagnostics.html index 45f69074bcfdd..84c6f8bc320ca 100644 --- a/www/diagnostics.html +++ b/www/diagnostics.html @@ -263,6 +263,39 @@ diagnostic.<p> <span class="snip">template<> </span> </pre> +<h2>Template Type Diffing</h2> + +<p>Templates types can be long and difficult to read. Moreso when part of an +error message. Instead of just printing out the type name, Clang has enough +information to remove the common elements and highlight the differences. To +show the template structure more clearly, the templated type can also be +printed as an indented text tree.</p> + +Default: template diff with type elision +<pre> +t.cc:4:5: <span class="note">note:</span> candidate function not viable: no known conversion from 'vector<map<[...], <span class="template-highlight">float</span>>>' to 'vector<map<[...], <span class="template-highlight">double</span>>>' for 1st argument; +</pre> +-fno-elide-type: template diff without elision +<pre> +t.cc:4:5: <span class="note">note:</span> candidate function not viable: no known conversion from 'vector<map<int, <span class="template-highlight">float</span>>>' to 'vector<map<int, <span class="template-highlight">double</span>>>' for 1st argument; +</pre> +-fdiagnostics-show-template-tree: template tree printing with elision +<pre> +t.cc:4:5: <span class="note">note:</span> candidate function not viable: no known conversion for 1st argument; + vector< + map< + [...], + [<span class="template-highlight">float</span> != <span class="template-highlight">double</span>]>> +</pre> +-fdiagnostics-show-template-tree -fno-elide-type: template tree printing with no elision +<pre> +t.cc:4:5: <span class="note">note:M</span> candidate function not viable: no known conversion for 1st argument; + vector< + map< + int, + [<span class="template-highlight">float</span> != <span class="template-highlight">double</span>]>> +</pre> + <h2>Automatic Macro Expansion</h2> <p>Many errors happen in macros that are sometimes deeply nested. With |