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| <h4 class="subsection">10.10.6 C++ Expressions</h4> |
| |
| <p>This section describes expressions specific to the C and C++ front |
| ends. |
| </p> |
| <dl compact="compact"> |
| <dt><code>TYPEID_EXPR</code></dt> |
| <dd> |
| <p>Used to represent a <code>typeid</code> expression. |
| </p> |
| </dd> |
| <dt><code>NEW_EXPR</code></dt> |
| <dt><code>VEC_NEW_EXPR</code></dt> |
| <dd> |
| <p>Used to represent a call to <code>new</code> and <code>new[]</code> respectively. |
| </p> |
| </dd> |
| <dt><code>DELETE_EXPR</code></dt> |
| <dt><code>VEC_DELETE_EXPR</code></dt> |
| <dd> |
| <p>Used to represent a call to <code>delete</code> and <code>delete[]</code> respectively. |
| </p> |
| </dd> |
| <dt><code>MEMBER_REF</code></dt> |
| <dd> |
| <p>Represents a reference to a member of a class. |
| </p> |
| </dd> |
| <dt><code>THROW_EXPR</code></dt> |
| <dd> |
| <p>Represents an instance of <code>throw</code> in the program. Operand 0, |
| which is the expression to throw, may be <code>NULL_TREE</code>. |
| </p> |
| |
| </dd> |
| <dt><code>AGGR_INIT_EXPR</code></dt> |
| <dd><p>An <code>AGGR_INIT_EXPR</code> represents the initialization as the return |
| value of a function call, or as the result of a constructor. An |
| <code>AGGR_INIT_EXPR</code> will only appear as a full-expression, or as the |
| second operand of a <code>TARGET_EXPR</code>. <code>AGGR_INIT_EXPR</code>s have |
| a representation similar to that of <code>CALL_EXPR</code>s. You can use |
| the <code>AGGR_INIT_EXPR_FN</code> and <code>AGGR_INIT_EXPR_ARG</code> macros to access |
| the function to call and the arguments to pass. |
| </p> |
| <p>If <code>AGGR_INIT_VIA_CTOR_P</code> holds of the <code>AGGR_INIT_EXPR</code>, then |
| the initialization is via a constructor call. The address of the |
| <code>AGGR_INIT_EXPR_SLOT</code> operand, which is always a <code>VAR_DECL</code>, |
| is taken, and this value replaces the first argument in the argument |
| list. |
| </p> |
| <p>In either case, the expression is void. |
| </p> |
| |
| </dd> |
| </dl> |
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