116 lines
4.1 KiB
C++
116 lines
4.1 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
|
|
//
|
|
// Purpose: Defines the more complete set of operations on the string_t defined
|
|
// These should be used instead of direct manipulation to allow more
|
|
// flexibility in future ports or optimization.
|
|
//
|
|
// $NoKeywords: $
|
|
//=============================================================================//
|
|
|
|
#ifndef STRING_T_H
|
|
#define STRING_T_H
|
|
|
|
#if defined( _WIN32 )
|
|
#pragma once
|
|
#endif
|
|
|
|
#ifndef NO_STRING_T
|
|
|
|
#ifdef WEAK_STRING_T
|
|
|
|
typedef int string_t;
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: The correct way to specify the NULL string as a constant.
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#define NULL_STRING 0
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: Given a string_t, make a C string. By convention the result string
|
|
// pointer should be considered transient and should not be stored.
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#define STRING( offset ) ( ( offset ) ? reinterpret_cast<const char *>( offset ) : "" )
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: Given a C string, obtain a string_t
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#define MAKE_STRING( str ) ( ( *str != 0 ) ? reinterpret_cast<int>( str ) : 0 )
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#define IDENT_STRINGS( s1, s2 ) *((void **)&(s1)) == *((void **)&(s2))
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#else // Strong string_t
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
struct string_t
|
|
{
|
|
public:
|
|
bool operator!() const { return ( pszValue == NULL ); }
|
|
bool operator==( const string_t &rhs ) const { return ( pszValue == rhs.pszValue ); }
|
|
bool operator!=( const string_t &rhs ) const { return ( pszValue != rhs.pszValue ); }
|
|
bool operator<( const string_t &rhs ) const { return ((void *)pszValue < (void *)rhs.pszValue ); }
|
|
|
|
const char *ToCStr() const { return ( pszValue ) ? pszValue : ""; }
|
|
|
|
protected:
|
|
const char *pszValue;
|
|
};
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
struct castable_string_t : public string_t // string_t is used in unions, hence, no constructor allowed
|
|
{
|
|
castable_string_t() { pszValue = NULL; }
|
|
castable_string_t( const char *pszFrom ) { pszValue = (pszFrom && *pszFrom) ? pszFrom : 0; }
|
|
};
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: The correct way to specify the NULL string as a constant.
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#define NULL_STRING castable_string_t()
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: Given a string_t, make a C string. By convention the result string
|
|
// pointer should be considered transient and should not be stored.
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#define STRING( string_t_obj ) (string_t_obj).ToCStr()
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: Given a C string, obtain a string_t
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#define MAKE_STRING( c_str ) castable_string_t( c_str )
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#define IDENT_STRINGS( s1, s2 ) *((void **)&(s1)) == *((void **)&(s2))
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
inline void NetworkVarConstruct( string_t &x ) { x = NULL_STRING; }
|
|
|
|
#endif
|
|
|
|
#else // NO_STRING_T
|
|
|
|
typedef const char *string_t;
|
|
#define NULL_STRING 0
|
|
#define STRING( c_str ) ( c_str )
|
|
#define MAKE_STRING( c_str ) ( c_str )
|
|
#define IDENT_STRINGS( s1, s2 ) *((void **)&(s1)) == *((void **)&(s2))
|
|
|
|
#endif // NO_STRING_T
|
|
|
|
//=============================================================================
|
|
|
|
#endif // STRING_T_H
|