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Diffstat (limited to 'ace/Env_Value_T.h')
-rw-r--r-- | ace/Env_Value_T.h | 166 |
1 files changed, 0 insertions, 166 deletions
diff --git a/ace/Env_Value_T.h b/ace/Env_Value_T.h deleted file mode 100644 index 0a01705dfbb..00000000000 --- a/ace/Env_Value_T.h +++ /dev/null @@ -1,166 +0,0 @@ -// -*- C++ -*- - -//============================================================================= -/** - * @file Env_Value_T.h - * - * $Id$ - * - * Template to encapsulate getting a value from an environment variable - * and using a supplied default value if not in the environment. - * - * - * @author Chris Cleeland (derived from work by Carlos O'Ryan) - */ -//============================================================================= - -#ifndef ACE_ENV_VALUE_T_H -#define ACE_ENV_VALUE_T_H - -#include /**/ "ace/pre.h" - -#include "ace/config-all.h" -#include "ace/Global_Macros.h" -#include "ace/OS_NS_stdlib.h" - -#if !defined (ACE_LACKS_PRAGMA_ONCE) -# pragma once -#endif /* ACE_LACKS_PRAGMA_ONCE */ - -ACE_BEGIN_VERSIONED_NAMESPACE_DECL - -/** - * @class ACE_Env_Value - * - * @brief Environment Variable Value - * - * Reads a variable from the user environment, providing a default - * value. - */ -template <class T> -class ACE_Env_Value -{ -public: - /** - * Default constructor which isn't bound to a specific environment - * variable name or a default value. Before being useful it must - * <open>'d. - */ - ACE_Env_Value (void); - - /// Constructor that calls <open>. - ACE_Env_Value (const ACE_TCHAR *varname, - const T &vardefault); - - /// Destroy the value. - ~ACE_Env_Value (void); - - /// Returns the value as type T. - operator T (void); - - /// The constructor, read @a varname from the environment, using - /// @a defval as its value if it is not defined. - void open (const ACE_TCHAR *varname, const T &defval); - - /// Returns the name of the variable being tracked. - const ACE_TCHAR *varname (void) const; - -private: - /// Disallow copying and assignment. - ACE_UNIMPLEMENTED_FUNC (ACE_Env_Value(const ACE_Env_Value<T> &)) - ACE_UNIMPLEMENTED_FUNC (ACE_Env_Value<T> operator=(const ACE_Env_Value<T> &)) - - void fetch_value (void); - - const ACE_TCHAR *varname_; - T value_; -}; - -/// Function to convert a string @a s into type @c T. -template <class T> void ACE_Convert (const ACE_TCHAR *s, T &t); - -ACE_END_VERSIONED_NAMESPACE_DECL - -#if defined (__ACE_INLINE__) -#include "ace/Env_Value_T.inl" -#endif /* __ACE_INLINE__ */ - -#if defined (ACE_TEMPLATES_REQUIRE_SOURCE) -#include "ace/Env_Value_T.cpp" -#endif /* ACE_TEMPLATES_REQUIRE_SOURCE */ - -ACE_BEGIN_VERSIONED_NAMESPACE_DECL - -template <> inline void -ACE_Convert (const ACE_TCHAR *s, ACE_TCHAR *&v) -{ - v = (ACE_TCHAR *) s; -} - -template <> inline void -ACE_Convert (const ACE_TCHAR *s, const ACE_TCHAR *&v) -{ - v = (const ACE_TCHAR *) s; -} - -template <> inline void -ACE_Convert (const ACE_TCHAR *s, short &si) -{ - si = static_cast<short> (ACE_OS::strtol (s, 0, 10)); -} - -template <> inline void -ACE_Convert (const ACE_TCHAR *s, u_short &us) -{ - us = static_cast <u_short> (ACE_OS::strtol (s, 0, 10)); -} - -template <> inline void -ACE_Convert (const ACE_TCHAR *s, u_int &i) -{ - i = static_cast<u_int> (ACE_OS::strtol (s, 0, 10)); -} - -template <> inline void -ACE_Convert (const ACE_TCHAR *s, long &l) -{ - l = ACE_OS::strtol (s, 0, 10); -} - -template <> inline void -ACE_Convert (const ACE_TCHAR *s, int &i) -{ - i = static_cast<int> (ACE_OS::strtol (s, 0, 10)); -} - -template <> inline void -ACE_Convert (const ACE_TCHAR *s, u_long &ul) -{ - ul = ACE_OS::strtoul (s, 0, 10); -} - -template <> inline void -ACE_Convert (const ACE_TCHAR *s, double &d) -{ - d = ACE_OS::strtod (s, 0); -} - -// Default calls a CTOR on type T of the form 'T::T(const char*)', but -// users can feel free to create their own specialized conversion -// functions if necessary, as shown above. Note that for 'char*' the -// default is used because a simple cast will be performed and no -// conversion will be necessary. -template <class T> inline void -ACE_Convert (const ACE_TCHAR *s, T &t) -{ - t = T (s); -} - -ACE_END_VERSIONED_NAMESPACE_DECL - -#if defined (ACE_TEMPLATES_REQUIRE_PRAGMA) -#pragma implementation ("Env_Value_T.cpp") -#endif /* ACE_TEMPLATES_REQUIRE_PRAGMA */ - -#include /**/ "ace/post.h" -#endif /* ACE_ENV_VALUE_T_H */ |