tssize.cpp

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C++ 代码 · 共 63 行

/****************************************************************************
*
*                            Open Watcom Project
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*    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
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*  ========================================================================
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*    This file contains Original Code and/or Modifications of Original
*    Code as defined in and that are subject to the Sybase Open Watcom
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****************************************************************************/


#include "cpplib.h"
#include "rtexcept.h"


extern "C"
size_t CPPLIB( ts_size )(       // GET SIZE OF ELEMENT FROM TYPE SIGNATURE
    RT_TYPE_SIG sig )           // - type signature
{
    size_t size;                // - size of an element

    sig = CPPLIB( ts_refed )( sig );
    switch( sig->hdr.type ) {
      case THROBJ_SCALAR :
      case THROBJ_PTR_FUN :
        size = sig->scalar.size;
        break;
      case THROBJ_CLASS :
      case THROBJ_CLASS_VIRT :
        size = sig->clss.size;
        break;
      case THROBJ_VOID_STAR :
      case THROBJ_PTR_SCALAR :
      case THROBJ_PTR_CLASS :
        size = sizeof( void* );
        break;
      default:
        GOOF_EXC( "unexpected type signature" );
    }
    return size;
}