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| author | George Burgess IV <george.burgess.iv@gmail.com> | 2016-06-21 02:19:43 +0000 |
|---|---|---|
| committer | George Burgess IV <george.burgess.iv@gmail.com> | 2016-06-21 02:19:43 +0000 |
| commit | 7d29e48887df01ee66459726d979b7322d38bfcd (patch) | |
| tree | 2e7a849686cad7cbbe9b3af3524fb2370bf01987 /docs/UsersManual.rst | |
| parent | d6c78f11de25dcaf4fb26e5e45be481db7f70741 (diff) | |
[Docs] More warning fixes to unbreak the docs buildbot.
A number of warnings still remain, but these were the last of the
"unlexable code"-related ones (AFAICT).
I changed a few examples in docs/UsersManual.rst to showcase
-Wextra-tokens because it's already documented (-Wmultichar isn't), and
the sphinx C lexer apparently can't handle char literals like 'ab'. It
seemed like a better overall approach than just marking the code blocks
as none or console.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@273232 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'docs/UsersManual.rst')
| -rw-r--r-- | docs/UsersManual.rst | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/docs/UsersManual.rst b/docs/UsersManual.rst index 64ae4661d2..945dc53c4e 100644 --- a/docs/UsersManual.rst +++ b/docs/UsersManual.rst @@ -711,16 +711,19 @@ also allows you to push and pop the current warning state. This is particularly useful when writing a header file that will be compiled by other people, because you don't know what warning flags they build with. -In the below example :option:`-Wmultichar` is ignored for only a single line of -code, after which the diagnostics return to whatever state had previously +In the below example :option:`-Wextra-tokens` is ignored for only a single line +of code, after which the diagnostics return to whatever state had previously existed. .. code-block:: c - #pragma clang diagnostic push - #pragma clang diagnostic ignored "-Wmultichar" + #if foo + #endif foo // warning: extra tokens at end of #endif directive - char b = 'df'; // no warning. + #pragma clang diagnostic ignored "-Wextra-tokens" + + #if foo + #endif foo // no warning #pragma clang diagnostic pop @@ -772,11 +775,13 @@ the pragma onwards within the same file. .. code-block:: c - char a = 'xy'; // warning + #if foo + #endif foo // warning: extra tokens at end of #endif directive #pragma clang system_header - char b = 'ab'; // no warning + #if foo + #endif foo // no warning The :option:`--system-header-prefix=` and :option:`--no-system-header-prefix=` command-line arguments can be used to override whether subsets of an include |