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Diffstat (limited to 'docs/UsersManual.html')
| -rw-r--r-- | docs/UsersManual.html | 18 |
1 files changed, 5 insertions, 13 deletions
diff --git a/docs/UsersManual.html b/docs/UsersManual.html index 4962a92..63989271 100644 --- a/docs/UsersManual.html +++ b/docs/UsersManual.html @@ -846,6 +846,10 @@ variants "__asm__" and "__typeof__" are recognized in all modes.</li> <li>The Apple "blocks" extension is recognized by default in gnu* modes on some platforms; it can be enabled in any mode with the "-fblocks" option.</li> +<li>Arrays that are VLA's according to the standard, but which can be constant + folded by the frontend are treated as fixed size arrays. This occurs for + things like "int X[(1, 2)];", which is technically a VLA. c* modes are + strictly compliant and treat these as VLAs.</li> </ul> <p>Differences between *89 and *99 modes:</p> @@ -882,11 +886,6 @@ extensions are not implemented yet:</p> the uses described in the bug, this is likely to be implemented at some point, at least partially.</li> -<li>clang does not support code generation for local variables pinned to -registers (<a href="http://llvm.org/bugs/show_bug.cgi?id=3933">bug 3933</a>). -This is a relatively small feature, so it is likely to be implemented -relatively soon.</li> - <li>clang does not support decimal floating point types (_Decimal32 and friends) or fixed-point types (_Fract and friends); nobody has expressed interest in these features yet, so it's hard to say when they will be @@ -937,16 +936,9 @@ extension appears to be rarely used. Note that clang <em>does</em> support flexible array members (arrays with a zero or unspecified size at the end of a structure).</li> -<li>clang does not support duplicate definitions of a function where one is -inline. This complicates clients of the AST which normally can expect there is -at most one definition for each function. Source code using this feature should -be changed to define the inline and out-of-line definitions in separate -translation units.</li> - <li>clang does not have an equivalent to gcc's "fold"; this means that clang doesn't accept some constructs gcc might accept in contexts where a -constant expression is required, like "x-x" where x is a variable, or calls -to C library functions like strlen.</li> +constant expression is required, like "x-x" where x is a variable.</li> <li>clang does not support multiple alternative constraints in inline asm; this is an extremely obscure feature which would be complicated to implement |
