tmp/tmptz65n_ra/{from.md → to.md}
RENAMED
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## Ambiguity resolution <a id="stmt.ambig">[[stmt.ambig]]</a>
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There is an ambiguity in the grammar involving *expression-statement*s
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and *declaration*s: An *expression-statement* with a function-style
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-
explicit type conversion
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subexpression can be indistinguishable from a *declaration* where the
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first *declarator* starts with a `(`. In those cases the *statement* is
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a *declaration*.
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[*Note 1*:
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@@ -14,11 +14,11 @@ ambiguity, so this rule does not apply. The whole *statement* might need
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to be examined to determine whether this is the case. This resolves the
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meaning of many examples.
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[*Example 1*:
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-
Assuming `T` is a *simple-type-specifier*
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``` cpp
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T(a)->m = 7; // expression-statement
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T(a)++; // expression-statement
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T(a,5)<<c; // expression-statement
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— *end example*]
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<!-- Link reference definitions -->
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[basic.def.odr]: basic.md#basic.def.odr
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[basic.lookup.argdep]: basic.md#basic.lookup.argdep
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[basic.lookup.classref]: basic.md#basic.lookup.classref
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[basic.lookup.unqual]: basic.md#basic.lookup.unqual
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[basic.scope]: basic.md#basic.scope
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[basic.scope.pdecl]: basic.md#basic.scope.pdecl
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[basic.start.main]: basic.md#basic.start.main
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[basic.start.term]: basic.md#basic.start.term
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[basic.stc.auto]: basic.md#basic.stc.auto
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[basic.stc.static]: basic.md#basic.stc.static
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[basic.stc.thread]: basic.md#basic.stc.thread
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-
[class.copy]:
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[class.ctor]:
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[class.dtor]:
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[class.temporary]:
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[conv]:
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[conv.prom]:
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[dcl.init]: dcl.md#dcl.init
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[dcl.meaning]: dcl.md#dcl.meaning
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[dcl.spec.auto]: dcl.md#dcl.spec.auto
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[dcl.type]: dcl.md#dcl.type
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[
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[expr.const]: expr.md#expr.const
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[expr.type.conv]: expr.md#expr.type.conv
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[stmt.ambig]: #stmt.ambig
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[stmt.block]: #stmt.block
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[stmt.break]: #stmt.break
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[stmt.cont]: #stmt.cont
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@@ -130,18 +136,20 @@ void f() {
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[stmt.goto]: #stmt.goto
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[stmt.if]: #stmt.if
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[stmt.iter]: #stmt.iter
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[stmt.jump]: #stmt.jump
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[stmt.label]: #stmt.label
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[stmt.ranged]: #stmt.ranged
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[stmt.return]: #stmt.return
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[stmt.select]: #stmt.select
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[stmt.stmt]: #stmt.stmt
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[stmt.switch]: #stmt.switch
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[stmt.while]: #stmt.while
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[support.start.term]:
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[temp]: temp.md#temp
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[^1]: In other words, the `else` is associated with the nearest un-elsed
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`if`.
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[^2]: The transfer from the condition of a `switch` statement to a
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## Ambiguity resolution <a id="stmt.ambig">[[stmt.ambig]]</a>
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There is an ambiguity in the grammar involving *expression-statement*s
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and *declaration*s: An *expression-statement* with a function-style
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+
explicit type conversion [[expr.type.conv]] as its leftmost
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subexpression can be indistinguishable from a *declaration* where the
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first *declarator* starts with a `(`. In those cases the *statement* is
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a *declaration*.
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[*Note 1*:
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to be examined to determine whether this is the case. This resolves the
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meaning of many examples.
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[*Example 1*:
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+
Assuming `T` is a *simple-type-specifier* [[dcl.type]],
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``` cpp
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T(a)->m = 7; // expression-statement
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T(a)++; // expression-statement
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T(a,5)<<c; // expression-statement
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— *end example*]
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<!-- Link reference definitions -->
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[basic.def.odr]: basic.md#basic.def.odr
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+
[basic.life]: basic.md#basic.life
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[basic.lookup.argdep]: basic.md#basic.lookup.argdep
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[basic.lookup.classref]: basic.md#basic.lookup.classref
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[basic.lookup.unqual]: basic.md#basic.lookup.unqual
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[basic.scope]: basic.md#basic.scope
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[basic.scope.block]: basic.md#basic.scope.block
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[basic.scope.pdecl]: basic.md#basic.scope.pdecl
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[basic.start.main]: basic.md#basic.start.main
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[basic.start.term]: basic.md#basic.start.term
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[basic.stc.auto]: basic.md#basic.stc.auto
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[basic.stc.static]: basic.md#basic.stc.static
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[basic.stc.thread]: basic.md#basic.stc.thread
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[class.copy.elision]: class.md#class.copy.elision
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[class.ctor]: class.md#class.ctor
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[class.dtor]: class.md#class.dtor
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[class.temporary]: basic.md#class.temporary
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[conv]: expr.md#conv
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[conv.prom]: expr.md#conv.prom
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[dcl.dcl]: dcl.md#dcl.dcl
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[dcl.fct.def.coroutine]: dcl.md#dcl.fct.def.coroutine
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[dcl.init]: dcl.md#dcl.init
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[dcl.meaning]: dcl.md#dcl.meaning
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[dcl.spec.auto]: dcl.md#dcl.spec.auto
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[dcl.type]: dcl.md#dcl.type
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[except.ctor]: except.md#except.ctor
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[expr.await]: expr.md#expr.await
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[expr.const]: expr.md#expr.const
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[expr.context]: expr.md#expr.context
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[expr.type.conv]: expr.md#expr.type.conv
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[stmt.ambig]: #stmt.ambig
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[stmt.block]: #stmt.block
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[stmt.break]: #stmt.break
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[stmt.cont]: #stmt.cont
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[stmt.goto]: #stmt.goto
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[stmt.if]: #stmt.if
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[stmt.iter]: #stmt.iter
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[stmt.jump]: #stmt.jump
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[stmt.label]: #stmt.label
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[stmt.pre]: #stmt.pre
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[stmt.ranged]: #stmt.ranged
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[stmt.return]: #stmt.return
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[stmt.return.coroutine]: #stmt.return.coroutine
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[stmt.select]: #stmt.select
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[stmt.stmt]: #stmt.stmt
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[stmt.switch]: #stmt.switch
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[stmt.while]: #stmt.while
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[support.start.term]: support.md#support.start.term
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[temp.pre]: temp.md#temp.pre
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[^1]: In other words, the `else` is associated with the nearest un-elsed
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`if`.
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[^2]: The transfer from the condition of a `switch` statement to a
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