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| author | Paolo Bonzini <bonzini@gnu.org> | 2009-05-11 07:56:52 +0000 |
|---|---|---|
| committer | Paolo Bonzini <bonzini@gnu.org> | 2009-05-11 07:56:52 +0000 |
| commit | e9341300e5c5e5839d8c2170513a6c08dbb13068 (patch) | |
| tree | 249b465b87e69f6eac915fe31be1961a40356b8b /gcc/doc/extend.texi | |
| parent | 7a0b179b3e9be8831081770a4a766ccf98146522 (diff) | |
| parent | a2a80d1d18605c11862e80677ef958970ecdbe95 (diff) | |
Merge trunk up to revision 147359.
git-svn-id: https://gcc.gnu.org/svn/gcc/branches/cond-optab@147360 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/doc/extend.texi')
| -rw-r--r-- | gcc/doc/extend.texi | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi index 4e06be3daca..6b626e2add7 100644 --- a/gcc/doc/extend.texi +++ b/gcc/doc/extend.texi @@ -958,10 +958,6 @@ is incomplete: @itemize @bullet @item -Pragma @code{FLOAT_CONST_DECIMAL64} is not supported, nor is the @samp{d} -suffix for literal constants of type @code{double}. - -@item When the value of a decimal floating type cannot be represented in the integer type to which it is being converted, the result is undefined rather than the result value specified by the draft technical report. @@ -2069,6 +2065,7 @@ objects (@pxref{C++ Attributes}). These attributes are not currently implemented for Objective-C@. @item deprecated +@itemx deprecated (@var{msg}) @cindex @code{deprecated} attribute. The @code{deprecated} attribute results in a warning if the function is used anywhere in the source file. This is useful when identifying @@ -2084,7 +2081,9 @@ int old_fn (); int (*fn_ptr)() = old_fn; @end smallexample -results in a warning on line 3 but not line 2. +results in a warning on line 3 but not line 2. The optional msg +argument, which must be a string, will be printed in the warning if +present. The @code{deprecated} attribute can also be used for variables and types (@pxref{Variable Attributes}, @pxref{Type Attributes}.) @@ -3849,6 +3848,7 @@ These attributes override the default chosen by the @option{-fno-common} and @option{-fcommon} flags respectively. @item deprecated +@itemx deprecated (@var{msg}) @cindex @code{deprecated} attribute The @code{deprecated} attribute results in a warning if the variable is used anywhere in the source file. This is useful when identifying @@ -3864,7 +3864,9 @@ extern int old_var; int new_fn () @{ return old_var; @} @end smallexample -results in a warning on line 3 but not line 2. +results in a warning on line 3 but not line 2. The optional msg +argument, which must be a string, will be printed in the warning if +present. The @code{deprecated} attribute can also be used for functions and types (@pxref{Function Attributes}, @pxref{Type Attributes}.) @@ -4494,6 +4496,7 @@ not referenced, but contain constructors and destructors that have nontrivial bookkeeping functions. @item deprecated +@itemx deprecated (@var{msg}) The @code{deprecated} attribute results in a warning if the type is used anywhere in the source file. This is useful when identifying types that are expected to be removed in a future version of a program. @@ -4516,7 +4519,9 @@ T3 z __attribute__ ((deprecated)); results in a warning on line 2 and 3 but not lines 4, 5, or 6. No warning is issued for line 4 because T2 is not explicitly deprecated. Line 5 has no warning because T3 is explicitly -deprecated. Similarly for line 6. +deprecated. Similarly for line 6. The optional msg +argument, which must be a string, will be printed in the warning if +present. The @code{deprecated} attribute can also be used for functions and variables (@pxref{Function Attributes}, @pxref{Variable Attributes}.) |