tmp/tmp3qatjenw/{from.md → to.md}
RENAMED
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@@ -47,14 +47,14 @@ Alignments have an order from *weaker* to *stronger* or *stricter*
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alignments. Stricter alignments have larger alignment values. An address
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that satisfies an alignment requirement also satisfies any weaker valid
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| 49 |
alignment requirement.
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The alignment requirement of a complete type can be queried using an
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-
`alignof` expression ([[expr.alignof]]). Furthermore, the
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-
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-
requirement. This enables the character types to be
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-
underlying type for an aligned memory area ([[dcl.align]]).
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Comparing alignments is meaningful and provides the obvious results:
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- Two alignments are equal when their numeric values are equal.
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- Two alignments are different when their numeric values are not equal.
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@@ -91,15 +91,15 @@ allocation failure.
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[basic.lookup.udir]: #basic.lookup.udir
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[basic.lookup.unqual]: #basic.lookup.unqual
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[basic.lval]: #basic.lval
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[basic.namespace]: dcl.md#basic.namespace
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[basic.scope]: #basic.scope
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[basic.scope.class]: #basic.scope.class
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[basic.scope.declarative]: #basic.scope.declarative
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[basic.scope.enum]: #basic.scope.enum
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[basic.scope.hiding]: #basic.scope.hiding
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-
[basic.scope.local]: #basic.scope.local
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[basic.scope.namespace]: #basic.scope.namespace
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[basic.scope.pdecl]: #basic.scope.pdecl
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[basic.scope.proto]: #basic.scope.proto
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[basic.scope.temp]: #basic.scope.temp
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[basic.start]: #basic.start
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@@ -142,18 +142,18 @@ allocation failure.
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[class.this]: class.md#class.this
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[class.union]: class.md#class.union
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[conv]: conv.md#conv
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[conv.array]: conv.md#conv.array
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[conv.func]: conv.md#conv.func
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[conv.lval]: conv.md#conv.lval
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[conv.mem]: conv.md#conv.mem
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[conv.prom]: conv.md#conv.prom
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[conv.ptr]: conv.md#conv.ptr
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| 151 |
[conv.qual]: conv.md#conv.qual
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[dcl.align]: dcl.md#dcl.align
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[dcl.array]: dcl.md#dcl.array
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-
[dcl.constexpr]: dcl.md#dcl.constexpr
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[dcl.dcl]: dcl.md#dcl.dcl
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[dcl.decl]: dcl.md#dcl.decl
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[dcl.enum]: dcl.md#dcl.enum
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[dcl.fct]: dcl.md#dcl.fct
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[dcl.fct.def]: dcl.md#dcl.fct.def
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@@ -162,17 +162,20 @@ allocation failure.
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[dcl.init]: dcl.md#dcl.init
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[dcl.init.aggr]: dcl.md#dcl.init.aggr
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[dcl.init.ref]: dcl.md#dcl.init.ref
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[dcl.link]: dcl.md#dcl.link
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[dcl.mptr]: dcl.md#dcl.mptr
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[dcl.ptr]: dcl.md#dcl.ptr
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[dcl.ref]: dcl.md#dcl.ref
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[dcl.stc]: dcl.md#dcl.stc
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[dcl.type.cv]: dcl.md#dcl.type.cv
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[dcl.type.elab]: dcl.md#dcl.type.elab
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[dcl.type.simple]: dcl.md#dcl.type.simple
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[dcl.typedef]: dcl.md#dcl.typedef
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[except]: except.md#except
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[except.handle]: except.md#except.handle
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[except.spec]: except.md#except.spec
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[except.terminate]: except.md#except.terminate
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[except.throw]: except.md#except.throw
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@@ -185,12 +188,14 @@ allocation failure.
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[expr.comma]: expr.md#expr.comma
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[expr.cond]: expr.md#expr.cond
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[expr.const]: expr.md#expr.const
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[expr.delete]: expr.md#expr.delete
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[expr.dynamic.cast]: expr.md#expr.dynamic.cast
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[expr.new]: expr.md#expr.new
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[expr.prim]: expr.md#expr.prim
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[expr.pseudo]: expr.md#expr.pseudo
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[expr.ref]: expr.md#expr.ref
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[expr.sizeof]: expr.md#expr.sizeof
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[expr.static.cast]: expr.md#expr.static.cast
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[expr.type.conv]: expr.md#expr.type.conv
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@@ -217,10 +222,11 @@ allocation failure.
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[over]: over.md#over
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[over.literal]: over.md#over.literal
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[over.load]: over.md#over.load
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[over.match]: over.md#over.match
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[over.oper]: over.md#over.oper
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[ptr.align]: utilities.md#ptr.align
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[replacement.functions]: library.md#replacement.functions
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[set.new.handler]: language.md#set.new.handler
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[stmt.block]: stmt.md#stmt.block
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[stmt.dcl]: stmt.md#stmt.dcl
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@@ -279,93 +285,101 @@ allocation failure.
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[^6]: This lookup applies whether the definition of `X` is nested within
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`Y`’s definition or whether `X`’s definition appears in a namespace
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scope enclosing `Y` ’s definition ([[class.nest]]).
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[^7]: That is, an unqualified name that occurs, for instance, in a type
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-
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-
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[^8]: This lookup applies whether the member function is defined within
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the definition of class `X` or whether the member function is
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defined in a namespace scope enclosing `X`’s definition.
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-
[^9]:
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-
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-
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-
[^10]: A
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initialization with side-effects must be initialized even if it is
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not odr-used ([[basic.def.odr]], [[basic.stc.static]]).
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-
[^
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`std::malloc()` or `std::calloc()`, so the rules are substantially
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the same. C++differs from C in requiring a zero request to return a
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non-null pointer.
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-
[^
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-
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-
[^
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pointers to memory not allocated by `::operator new`. This maintains
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the ability of many C++implementations to use binary libraries and
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components written in other languages. In particular, this applies
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-
to C binaries, because
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-
`malloc` is not restricted.
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-
[^
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non-POD class type ([[class.cdtor]]).
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-
[^
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implicitly—upon exit from the block for an object with automatic
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storage duration, upon exit from the thread for an object with
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thread storage duration, or upon exit from the program for an object
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with static storage duration.
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| 323 |
-
[^
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`std::memcpy` or `std::memmove`.
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| 326 |
-
[^
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| 327 |
`std::memcpy` or `std::memmove`.
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-
[^
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of ISO/IEC 9899 Programming Language C.
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-
[^
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object type is unknown.
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| 335 |
-
[^
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`INT_MIN` and `INT_MAX`, as defined in the header `<climits>`.
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| 337 |
|
| 338 |
-
[^
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| 339 |
types and the sequences of *type-specifier*s that designate them.
|
| 340 |
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| 341 |
-
[^
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result that cannot be represented by the resulting unsigned integer
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type is reduced modulo the number that is one greater than the
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largest value that can be represented by the resulting unsigned
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integer type.
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| 347 |
-
[^
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Standard as “undefined,” such as by examining the value of an
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uninitialized automatic object, might cause it to behave as if it is
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neither `true` nor `false`.
|
| 351 |
|
| 352 |
-
[^
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however, enumerations can be promoted to integral types as specified
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in [[conv.prom]].
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| 355 |
|
| 356 |
-
[^
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| 357 |
digits 0 and 1, in which the values represented by successive bits
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| 358 |
are additive, begin with 1, and are multiplied by successive
|
| 359 |
integral power of 2, except perhaps for the bit with the highest
|
| 360 |
position. (Adapted from the *American National Dictionary for
|
| 361 |
Information Processing Systems*.)
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|
| 363 |
-
[^
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| 364 |
them are ordinary pointers to objects or functions.
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-
[^
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imply interchangeability as arguments to functions, return values
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from functions, and non-static data members of unions.
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-
[^
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| 371 |
which an object may or may not be aliased.
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| 47 |
alignments. Stricter alignments have larger alignment values. An address
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| 48 |
that satisfies an alignment requirement also satisfies any weaker valid
|
| 49 |
alignment requirement.
|
| 50 |
|
| 51 |
The alignment requirement of a complete type can be queried using an
|
| 52 |
+
`alignof` expression ([[expr.alignof]]). Furthermore, the narrow
|
| 53 |
+
character types ([[basic.fundamental]]) shall have the weakest
|
| 54 |
+
alignment requirement. This enables the narrow character types to be
|
| 55 |
+
used as the underlying type for an aligned memory area ([[dcl.align]]).
|
| 56 |
|
| 57 |
Comparing alignments is meaningful and provides the obvious results:
|
| 58 |
|
| 59 |
- Two alignments are equal when their numeric values are equal.
|
| 60 |
- Two alignments are different when their numeric values are not equal.
|
|
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| 91 |
[basic.lookup.udir]: #basic.lookup.udir
|
| 92 |
[basic.lookup.unqual]: #basic.lookup.unqual
|
| 93 |
[basic.lval]: #basic.lval
|
| 94 |
[basic.namespace]: dcl.md#basic.namespace
|
| 95 |
[basic.scope]: #basic.scope
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| 96 |
+
[basic.scope.block]: #basic.scope.block
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| 97 |
[basic.scope.class]: #basic.scope.class
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| 98 |
[basic.scope.declarative]: #basic.scope.declarative
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[basic.scope.enum]: #basic.scope.enum
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| 100 |
[basic.scope.hiding]: #basic.scope.hiding
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[basic.scope.namespace]: #basic.scope.namespace
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| 102 |
[basic.scope.pdecl]: #basic.scope.pdecl
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[basic.scope.proto]: #basic.scope.proto
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| 104 |
[basic.scope.temp]: #basic.scope.temp
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| 105 |
[basic.start]: #basic.start
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[class.this]: class.md#class.this
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[class.union]: class.md#class.union
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| 144 |
[conv]: conv.md#conv
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| 145 |
[conv.array]: conv.md#conv.array
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| 146 |
[conv.func]: conv.md#conv.func
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+
[conv.integral]: conv.md#conv.integral
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| 148 |
[conv.lval]: conv.md#conv.lval
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| 149 |
[conv.mem]: conv.md#conv.mem
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| 150 |
[conv.prom]: conv.md#conv.prom
|
| 151 |
[conv.ptr]: conv.md#conv.ptr
|
| 152 |
[conv.qual]: conv.md#conv.qual
|
| 153 |
[dcl.align]: dcl.md#dcl.align
|
| 154 |
[dcl.array]: dcl.md#dcl.array
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| 155 |
[dcl.dcl]: dcl.md#dcl.dcl
|
| 156 |
[dcl.decl]: dcl.md#dcl.decl
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| 157 |
[dcl.enum]: dcl.md#dcl.enum
|
| 158 |
[dcl.fct]: dcl.md#dcl.fct
|
| 159 |
[dcl.fct.def]: dcl.md#dcl.fct.def
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| 162 |
[dcl.init]: dcl.md#dcl.init
|
| 163 |
[dcl.init.aggr]: dcl.md#dcl.init.aggr
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| 164 |
[dcl.init.ref]: dcl.md#dcl.init.ref
|
| 165 |
[dcl.link]: dcl.md#dcl.link
|
| 166 |
[dcl.mptr]: dcl.md#dcl.mptr
|
| 167 |
+
[dcl.name]: dcl.md#dcl.name
|
| 168 |
[dcl.ptr]: dcl.md#dcl.ptr
|
| 169 |
[dcl.ref]: dcl.md#dcl.ref
|
| 170 |
+
[dcl.spec]: dcl.md#dcl.spec
|
| 171 |
[dcl.stc]: dcl.md#dcl.stc
|
| 172 |
[dcl.type.cv]: dcl.md#dcl.type.cv
|
| 173 |
[dcl.type.elab]: dcl.md#dcl.type.elab
|
| 174 |
[dcl.type.simple]: dcl.md#dcl.type.simple
|
| 175 |
[dcl.typedef]: dcl.md#dcl.typedef
|
| 176 |
+
[diff.cpp11.basic]: compatibility.md#diff.cpp11.basic
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| 177 |
[except]: except.md#except
|
| 178 |
[except.handle]: except.md#except.handle
|
| 179 |
[except.spec]: except.md#except.spec
|
| 180 |
[except.terminate]: except.md#except.terminate
|
| 181 |
[except.throw]: except.md#except.throw
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|
| 188 |
[expr.comma]: expr.md#expr.comma
|
| 189 |
[expr.cond]: expr.md#expr.cond
|
| 190 |
[expr.const]: expr.md#expr.const
|
| 191 |
[expr.delete]: expr.md#expr.delete
|
| 192 |
[expr.dynamic.cast]: expr.md#expr.dynamic.cast
|
| 193 |
+
[expr.mptr.oper]: expr.md#expr.mptr.oper
|
| 194 |
[expr.new]: expr.md#expr.new
|
| 195 |
[expr.prim]: expr.md#expr.prim
|
| 196 |
+
[expr.prim.general]: expr.md#expr.prim.general
|
| 197 |
[expr.pseudo]: expr.md#expr.pseudo
|
| 198 |
[expr.ref]: expr.md#expr.ref
|
| 199 |
[expr.sizeof]: expr.md#expr.sizeof
|
| 200 |
[expr.static.cast]: expr.md#expr.static.cast
|
| 201 |
[expr.type.conv]: expr.md#expr.type.conv
|
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|
|
| 222 |
[over]: over.md#over
|
| 223 |
[over.literal]: over.md#over.literal
|
| 224 |
[over.load]: over.md#over.load
|
| 225 |
[over.match]: over.md#over.match
|
| 226 |
[over.oper]: over.md#over.oper
|
| 227 |
+
[over.over]: over.md#over.over
|
| 228 |
[ptr.align]: utilities.md#ptr.align
|
| 229 |
[replacement.functions]: library.md#replacement.functions
|
| 230 |
[set.new.handler]: language.md#set.new.handler
|
| 231 |
[stmt.block]: stmt.md#stmt.block
|
| 232 |
[stmt.dcl]: stmt.md#stmt.dcl
|
|
|
|
| 285 |
[^6]: This lookup applies whether the definition of `X` is nested within
|
| 286 |
`Y`’s definition or whether `X`’s definition appears in a namespace
|
| 287 |
scope enclosing `Y` ’s definition ([[class.nest]]).
|
| 288 |
|
| 289 |
[^7]: That is, an unqualified name that occurs, for instance, in a type
|
| 290 |
+
in the *parameter-declaration-clause* or in the
|
| 291 |
+
*exception-specification*.
|
| 292 |
|
| 293 |
[^8]: This lookup applies whether the member function is defined within
|
| 294 |
the definition of class `X` or whether the member function is
|
| 295 |
defined in a namespace scope enclosing `X`’s definition.
|
| 296 |
|
| 297 |
+
[^9]: Lookups in which function names are ignored include names
|
| 298 |
+
appearing in a *nested-name-specifier*, an
|
| 299 |
+
*elaborated-type-specifier*, or a *base-specifier*.
|
| 300 |
|
| 301 |
+
[^10]: A class template always has external linkage, and the
|
| 302 |
+
requirements of [[temp.arg.type]] and [[temp.arg.nontype]] ensure
|
| 303 |
+
that the template arguments will also have appropriate linkage.
|
| 304 |
+
|
| 305 |
+
[^11]: A non-local variable with static storage duration having
|
| 306 |
initialization with side-effects must be initialized even if it is
|
| 307 |
not odr-used ([[basic.def.odr]], [[basic.stc.static]]).
|
| 308 |
|
| 309 |
+
[^12]: The intent is to have `operator new()` implementable by calling
|
| 310 |
`std::malloc()` or `std::calloc()`, so the rules are substantially
|
| 311 |
the same. C++differs from C in requiring a zero request to return a
|
| 312 |
non-null pointer.
|
| 313 |
|
| 314 |
+
[^13]: This deallocation function precludes use of an allocation
|
| 315 |
+
function `void operator new(std::size_t, std::size_t)` as a
|
| 316 |
+
placement allocation function ([[diff.cpp11.basic]]).
|
| 317 |
|
| 318 |
+
[^14]: Some implementations might define that copying an invalid pointer
|
| 319 |
+
value causes a system-generated runtime fault.
|
| 320 |
+
|
| 321 |
+
[^15]: This section does not impose restrictions on indirection through
|
| 322 |
pointers to memory not allocated by `::operator new`. This maintains
|
| 323 |
the ability of many C++implementations to use binary libraries and
|
| 324 |
components written in other languages. In particular, this applies
|
| 325 |
+
to C binaries, because indirection through pointers to memory
|
| 326 |
+
allocated by `std::malloc` is not restricted.
|
| 327 |
|
| 328 |
+
[^16]: For example, before the construction of a global object of
|
| 329 |
non-POD class type ([[class.cdtor]]).
|
| 330 |
|
| 331 |
+
[^17]: That is, an object for which a destructor will be called
|
| 332 |
implicitly—upon exit from the block for an object with automatic
|
| 333 |
storage duration, upon exit from the thread for an object with
|
| 334 |
thread storage duration, or upon exit from the program for an object
|
| 335 |
with static storage duration.
|
| 336 |
|
| 337 |
+
[^18]: By using, for example, the library functions ([[headers]])
|
| 338 |
`std::memcpy` or `std::memmove`.
|
| 339 |
|
| 340 |
+
[^19]: By using, for example, the library functions ([[headers]])
|
| 341 |
`std::memcpy` or `std::memmove`.
|
| 342 |
|
| 343 |
+
[^20]: The intent is that the memory model of C++is compatible with that
|
| 344 |
of ISO/IEC 9899 Programming Language C.
|
| 345 |
|
| 346 |
+
[^21]: The size and layout of an instance of an incompletely-defined
|
| 347 |
object type is unknown.
|
| 348 |
|
| 349 |
+
[^22]: that is, large enough to contain any value in the range of
|
| 350 |
`INT_MIN` and `INT_MAX`, as defined in the header `<climits>`.
|
| 351 |
|
| 352 |
+
[^23]: See [[dcl.type.simple]] regarding the correspondence between
|
| 353 |
types and the sequences of *type-specifier*s that designate them.
|
| 354 |
|
| 355 |
+
[^24]: This implies that unsigned arithmetic does not overflow because a
|
| 356 |
result that cannot be represented by the resulting unsigned integer
|
| 357 |
type is reduced modulo the number that is one greater than the
|
| 358 |
largest value that can be represented by the resulting unsigned
|
| 359 |
integer type.
|
| 360 |
|
| 361 |
+
[^25]: Using a `bool` value in ways described by this International
|
| 362 |
Standard as “undefined,” such as by examining the value of an
|
| 363 |
uninitialized automatic object, might cause it to behave as if it is
|
| 364 |
neither `true` nor `false`.
|
| 365 |
|
| 366 |
+
[^26]: Therefore, enumerations ([[dcl.enum]]) are not integral;
|
| 367 |
however, enumerations can be promoted to integral types as specified
|
| 368 |
in [[conv.prom]].
|
| 369 |
|
| 370 |
+
[^27]: A positional representation for integers that uses the binary
|
| 371 |
digits 0 and 1, in which the values represented by successive bits
|
| 372 |
are additive, begin with 1, and are multiplied by successive
|
| 373 |
integral power of 2, except perhaps for the bit with the highest
|
| 374 |
position. (Adapted from the *American National Dictionary for
|
| 375 |
Information Processing Systems*.)
|
| 376 |
|
| 377 |
+
[^28]: Static class members are objects or functions, and pointers to
|
| 378 |
them are ordinary pointers to objects or functions.
|
| 379 |
|
| 380 |
+
[^29]: The same representation and alignment requirements are meant to
|
| 381 |
imply interchangeability as arguments to functions, return values
|
| 382 |
from functions, and non-static data members of unions.
|
| 383 |
|
| 384 |
+
[^30]: The intent of this list is to specify those circumstances in
|
| 385 |
which an object may or may not be aliased.
|