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/* /////////////////////////////////////////////////////////////////////////
* File: winstl/system/system_traits.hpp * * Purpose: Contains the system_traits template class, and ANSI and * Unicode specialisations thereof. * * Created: 15th November 2002 * Updated: 10th September 2011 * * Thanks to: Austin Ziegler for spotting the defective pre-condition * enforcement of expand_environment_strings(). * * Home: http://stlsoft.org/
* * Copyright (c) 2002-2011, Matthew Wilson and Synesis Software * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * - Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * - Neither the name(s) of Matthew Wilson and Synesis Software nor the * names of any contributors may be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * ////////////////////////////////////////////////////////////////////// */
/** \file winstl/system/system_traits.hpp
* * \brief [C++ only] Definition of the winstl::system_traits traits * class * (\ref group__library__system "System" Library). */
#ifndef WINSTL_INCL_WINSTL_SYSTEM_HPP_SYSTEM_TRAITS
#define WINSTL_INCL_WINSTL_SYSTEM_HPP_SYSTEM_TRAITS
#ifndef STLSOFT_DOCUMENTATION_SKIP_SECTION
# define WINSTL_VER_WINSTL_SYSTEM_HPP_SYSTEM_TRAITS_MAJOR 5
# define WINSTL_VER_WINSTL_SYSTEM_HPP_SYSTEM_TRAITS_MINOR 6
# define WINSTL_VER_WINSTL_SYSTEM_HPP_SYSTEM_TRAITS_REVISION 1
# define WINSTL_VER_WINSTL_SYSTEM_HPP_SYSTEM_TRAITS_EDIT 131
#endif /* !STLSOFT_DOCUMENTATION_SKIP_SECTION */
/* /////////////////////////////////////////////////////////////////////////
* Includes */
#ifndef WINSTL_INCL_WINSTL_H_WINSTL
# include <winstl/winstl.h>
#endif /* !WINSTL_INCL_WINSTL_H_WINSTL */
#ifndef STLSOFT_INCL_STLSOFT_INTERNAL_H_SAFESTR
# include <stlsoft/internal/safestr.h>
#endif /* !STLSOFT_INCL_STLSOFT_INTERNAL_H_SAFESTR */
#if defined(WINSTL_OS_IS_WIN64) || \
defined(_Wp64) # define _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING
#endif /* _WIN64 || _M_IA64 */
#ifdef _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING
# ifdef STLSOFT_CF_EXCEPTION_SUPPORT
# ifndef STLSOFT_INCL_STLSOFT_CONVERSION_HPP_TRUNCATION_CAST
# include <stlsoft/conversion/truncation_cast.hpp>
# endif /* !STLSOFT_INCL_STLSOFT_CONVERSION_HPP_TRUNCATION_CAST */
# else /* ? STLSOFT_CF_EXCEPTION_SUPPORT */
# ifndef STLSOFT_INCL_STLSOFT_CONVERSION_HPP_TRUNCATION_TEST
# include <stlsoft/conversion/truncation_test.hpp>
# endif /* !STLSOFT_INCL_STLSOFT_CONVERSION_HPP_TRUNCATION_TEST */
# endif /* STLSOFT_CF_EXCEPTION_SUPPORT */
#endif /* _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING */
#ifndef STLSOFT_INCL_H_STRING
# define STLSOFT_INCL_H_STRING
# include <string.h>
#endif /* !STLSOFT_INCL_H_STRING */
#ifndef STLSOFT_INCL_H_WCHAR
# define STLSOFT_INCL_H_WCHAR
# include <wchar.h>
#endif /* !STLSOFT_INCL_H_WCHAR */
/* /////////////////////////////////////////////////////////////////////////
* Namespace */
#ifndef _WINSTL_NO_NAMESPACE
# if defined(_STLSOFT_NO_NAMESPACE) || \
defined(STLSOFT_DOCUMENTATION_SKIP_SECTION) /* There is no stlsoft namespace, so must define ::winstl */ namespace winstl { # else
/* Define stlsoft::winstl_project */
namespace stlsoft {
namespace winstl_project {
# endif /* _STLSOFT_NO_NAMESPACE */
#endif /* !_WINSTL_NO_NAMESPACE */
/* /////////////////////////////////////////////////////////////////////////
* Classes */
#ifdef STLSOFT_DOCUMENTATION_SKIP_SECTION
/** Traits for accessing the correct system functions for a given
* character type. * * \ingroup group__library__system * * system_traits is a traits class for determining the correct system * structures and functions for a given character type. * * \param C The character type (e.g. \c char, \c wchar_t) */ template <ss_typename_param_k C> struct system_traits { /// \name Types
/// @{
public: /// The character type
typedef C char_type; /// The size type
typedef ws_size_t size_type; /// The difference type
typedef ws_ptrdiff_t difference_type; /// The current instantion of the type
typedef system_traits<C> class_type; /// The (signed) integer type
typedef ws_int_t int_type; /// The Boolean type
typedef ws_bool_t bool_type; /// The type of a handle to a dynamically loaded module
typedef HMODULE module_type; /// The type of a handle to a kernel object
typedef HANDLE handle_type; /// The type of system result codes
typedef DWORD result_code_type; /// The type of system error codes
typedef DWORD error_type; /// @}
/// \name General string handling
/// @{
public: /// Copies a specific number of characters from the source to the destination
static char_type* char_copy(char_type* dest, char_type const* src, size_type n); #if !defined(STLSOFT_USING_SAFE_STR_FUNCTIONS) || \
defined(_CRT_SECURE_NO_DEPRECATE) /// Copies the contents of \c src to \c dest
static char_type* str_copy(char_type* dest, char_type const* src); /// Copies the contents of \c src to \c dest, up to cch \c characters
static char_type* str_n_copy(char_type* dest, char_type const* src, size_type cch); /// Appends the contents of \c src to \c dest
static char_type* str_cat(char_type* dest, char_type const* src); /// Appends the contents of \c src to \c dest, up to cch \c characters
static char_type* str_n_cat(char_type* dest, char_type const* src, size_type cch); #endif /* !STLSOFT_USING_SAFE_STR_FUNCTIONS || _CRT_SECURE_NO_DEPRECATE */
/// Compares the contents of \c src and \c dest
static int_type str_compare(char_type const* s1, char_type const* s2); /// Compares the contents of \c src and \c dest in a case-insensitive fashion
static int_type str_compare_no_case(char_type const* s1, char_type const* s2); /// Compares the contents of \c src and \c dest up to \c cch characters
static int_type str_n_compare(char_type const* s1, char_type const* s2, size_type cch); /// Compares the contents of \c src and \c dest up to \c cch characters
static int_type str_n_compare_no_case(char_type const* s1, char_type const* s2, size_type cch); /// Evaluates the length of \c src
static size_type str_len(char_type const* src); /// Finds the given character \c ch in \c s
static char_type* str_chr(char_type const* s, char_type ch); /// Finds the rightmost instance \c ch in \c s
static char_type* str_rchr(char_type const* s, char_type ch); /// Finds the given substring \c sub in \c s
static char_type* str_str(char_type const* s, char_type const* sub); /// Finds one of a set of characters in \c s
static char_type* str_pbrk(char_type const* s, char_type const* charSet); /// Returns a pointer to the end of the string
static char_type* str_end(char_type const* s); /// Sets each character in \c s to the character \c c
///
/// \return s + n
static char_type* str_set(char_type* s, size_type n, char_type c); /// @}
/// \name Locale management
/// @{
public: /// Returns the locale information
#ifndef NONLS
static int_type get_locale_info(LCID locale, LCTYPE type, char_type* data, int_type cchData); #endif /* !NONLS */
/// @}
/// \name Module Paths
/// @{
public: /// Gets the full path name of the given module
static size_type get_module_filename(HMODULE hModule, char_type* buffer, size_type cchBuffer); /// Gets the full path name of the directory of the given module
static size_type get_module_directory(HMODULE hModule, char_type* buffer, size_type cchBuffer); /// Gets the full path name of the system directory
static size_type get_system_directory(char_type* buffer, size_type cchBuffer); /// Gets the full path name of the windows directory
static size_type get_windows_directory(char_type* buffer, size_type cchBuffer); /// @}
/// \name Dynamic Loading
/// @{
public: /// Loads the given executable module
static module_type load_library(char_type const* name); /// Closes the given executable module
static bool_type free_library(module_type hModule); /// Retrieves the given symbol from the library
static FARPROC find_symbol(module_type hModule, char const* symbolName); /// @}
/// \name Kernel object control
/// @{
public: /// Closes the given operating system handle
static bool_type close_handle(handle_type h); /// @}
/// \name Error
/// @{
public: /// Gives the last error
static error_type get_last_error(); /// Sets the last error
static void set_last_error(error_type er); /// @}
/// \name Environment
/// @{
public: /// Gets an environment variable into the given buffer
///
/// \param name The name of the variable to find
/// \param buffer The buffer in which to write the variable. If this is NULL, then the required length is returned
/// \param cchBuffer The size of the buffer, in characters
///
/// \pre NULL != name
static size_type get_environment_variable(char_type const* name, char_type* buffer, size_type cchBuffer); /// Expands environment strings in \c src into \c buffer, up to a maximum \c cchDest characters
static size_type expand_environment_strings(char_type const* src, char_type* buffer, size_type cchBuffer); /// @}
};
#else /* ? STLSOFT_DOCUMENTATION_SKIP_SECTION */
template <ss_typename_param_k C> struct system_traits;
struct system_traits_ { public: typedef ws_size_t size_type; typedef ws_ptrdiff_t difference_type; typedef system_traits_ class_type; typedef ws_int_t int_type; typedef ws_bool_t bool_type; typedef HMODULE module_type; typedef HANDLE handle_type; typedef DWORD result_code_type; typedef DWORD error_type;
class scoped_mem_block { public: ss_explicit_k scoped_mem_block(void* block) : m_block(block) {} ~scoped_mem_block() stlsoft_throw_0() { ::HeapFree(::GetProcessHeap(), 0, m_block); } private: scoped_mem_block(scoped_mem_block const&); scoped_mem_block& operator =(scoped_mem_block const&);
public: static ws_char_a_t* allocate_string_buffer_a(size_type n) { return static_cast<ws_char_a_t*>(::HeapAlloc(::GetProcessHeap(), 0, sizeof(ws_char_a_t) * (1 + n))); }
static ws_char_w_t* allocate_string_buffer_w(size_type n) { return static_cast<ws_char_w_t*>(::HeapAlloc(::GetProcessHeap(), 0, sizeof(ws_char_w_t) * (1 + n))); }
public: void* get() const { return m_block; }
private: void* m_block; };
public: static bool_type close_handle(handle_type h) { return FALSE != ::CloseHandle(h); }
public: static bool_type free_library(module_type hModule) { return FALSE != ::FreeLibrary(hModule); }
static FARPROC find_symbol(module_type hModule, char const* symbolName) { return ::GetProcAddress(hModule, symbolName); }
public: static error_type get_last_error() { return ::GetLastError(); }
static void set_last_error(error_type er) { ::SetLastError(er); } };
STLSOFT_TEMPLATE_SPECIALISATION struct system_traits<ws_char_a_t> { public: typedef ws_char_a_t char_type; typedef ws_size_t size_type; typedef ws_ptrdiff_t difference_type; typedef system_traits<char_type> class_type; typedef ws_int_t int_type; typedef ws_bool_t bool_type; typedef HMODULE module_type; typedef HANDLE handle_type; typedef DWORD result_code_type; typedef DWORD error_type;
public: static char_type* char_copy(char_type* dest, char_type const* src, size_type n) { WINSTL_ASSERT(NULL != dest); WINSTL_ASSERT(0 == n || NULL != src);
return static_cast<char_type*>(::memcpy(dest, src, sizeof(char_type) * n)); }
#if !defined(STLSOFT_USING_SAFE_STR_FUNCTIONS) || \
defined(_CRT_SECURE_NO_DEPRECATE) static char_type* str_copy(char_type* dest, char_type const* src) { WINSTL_ASSERT(NULL != dest); WINSTL_ASSERT(NULL != src);
# ifdef STLSOFT_MIN_CRT
return ::lstrcpyA(dest, src); # else /*? STLSOFT_MIN_CRT */
return ::strcpy(dest, src); # endif /* STLSOFT_MIN_CRT */
}
static char_type* str_n_copy(char_type* dest, char_type const* src, size_type cch) { WINSTL_ASSERT(NULL != dest); WINSTL_ASSERT(0 == cch || NULL != src);
return ::strncpy(dest, src, cch); }
static char_type* str_cat(char_type* dest, char_type const* src) { WINSTL_ASSERT(NULL != dest); WINSTL_ASSERT(NULL != src);
# ifdef STLSOFT_MIN_CRT
return ::lstrcatA(dest, src); # else /*? STLSOFT_MIN_CRT */
return ::strcat(dest, src); # endif /* STLSOFT_MIN_CRT */
}
static char_type* str_n_cat(char_type* dest, char_type const* src, size_type cch) { WINSTL_ASSERT(NULL != dest); WINSTL_ASSERT(NULL != src);
return ::strncat(dest, src, cch); } #endif /* !STLSOFT_USING_SAFE_STR_FUNCTIONS || _CRT_SECURE_NO_DEPRECATE */
static int_type str_compare(char_type const* s1, char_type const* s2) { WINSTL_ASSERT(NULL != s1); WINSTL_ASSERT(NULL != s2);
#ifdef STLSOFT_MIN_CRT
return ::lstrcmpA(s1, s2); #else /*? STLSOFT_MIN_CRT */
return ::strcmp(s1, s2); #endif /* STLSOFT_MIN_CRT */
}
static int_type str_compare_no_case(char_type const* s1, char_type const* s2) { WINSTL_ASSERT(NULL != s1); WINSTL_ASSERT(NULL != s2);
return ::lstrcmpiA(s1, s2); }
static int_type str_n_compare(char_type const* s1, char_type const* s2, size_type cch) { WINSTL_ASSERT(NULL != s1); WINSTL_ASSERT(NULL != s2);
return ::strncmp(s1, s2, cch); }
// TODO: move all these into internal, C-compatible, service files
//
// #include <stlsoft/system/apis/string/strnicmp.h
#ifdef WINSTL_SYSTEM_TRAITS_HAS_strnicmp_
# undef WINSTL_SYSTEM_TRAITS_HAS_strnicmp_
#endif /* WINSTL_SYSTEM_TRAITS_HAS_strnicmp_ */
#ifdef WINSTL_SYSTEM_TRAITS_HAS__strnicmp_
# undef WINSTL_SYSTEM_TRAITS_HAS__strnicmp_
#endif /* WINSTL_SYSTEM_TRAITS_HAS__strnicmp_ */
#if defined(STLSOFT_COMPILER_IS_BORLAND)
# if !defined(__STDC__)
# define WINSTL_SYSTEM_TRAITS_HAS_strnicmp_
# endif
# if !defined(__MFC_COMPAT__)
# define WINSTL_SYSTEM_TRAITS_HAS__strnicmp_
# endif
#elif defined(STLSOFT_COMPILER_IS_DMC)
# define WINSTL_SYSTEM_TRAITS_HAS__strnicmp_
#elif defined(STLSOFT_COMPILER_IS_GCC)
# if !defined(__STRICT_ANSI__)
# define WINSTL_SYSTEM_TRAITS_HAS__strnicmp_
# endif
#elif defined(STLSOFT_COMPILER_IS_INTEL) || \
defined(STLSOFT_COMPILER_IS_MSVC) # if !defined(__STDC__) && \
!defined(STLSOFT_USING_SAFE_STR_FUNCTIONS) # define WINSTL_SYSTEM_TRAITS_HAS_strnicmp_
# endif
# define WINSTL_SYSTEM_TRAITS_HAS__strnicmp_
#elif defined(STLSOFT_COMPILER_IS_MWERKS)
# define WINSTL_SYSTEM_TRAITS_HAS_strnicmp_
# define WINSTL_SYSTEM_TRAITS_HAS__strnicmp_
#elif defined(STLSOFT_COMPILER_IS_WATCOM)
# define WINSTL_SYSTEM_TRAITS_HAS__strnicmp_
#endif /* compiler */
#if defined(WINSTL_SYSTEM_TRAITS_HAS_strnicmp_) || \
defined(WINSTL_SYSTEM_TRAITS_HAS__strnicmp_) static int_type str_n_compare_no_case(char_type const* s1, char_type const* s2, size_type cch) { WINSTL_ASSERT(NULL != s1); WINSTL_ASSERT(NULL != s2);
# if defined(WINSTL_SYSTEM_TRAITS_HAS_strnicmp_)
return ::strnicmp(s1, s2, cch); # elif defined(WINSTL_SYSTEM_TRAITS_HAS__strnicmp_)
return ::_strnicmp(s1, s2, cch); # else
# error
# endif
} #else /* ? compiler */
static int_type str_n_compare_no_case(char_type const* s1, char_type const* s2, size_type cch); #endif /* compiler */
static size_type str_len(char_type const* src) { WINSTL_ASSERT(NULL != src);
#ifdef STLSOFT_MIN_CRT
return static_cast<size_type>(::lstrlenA(src)); #else /*? STLSOFT_MIN_CRT */
return ::strlen(src); #endif /* STLSOFT_MIN_CRT */
}
static char_type* str_chr(char_type const* s, char_type ch) { WINSTL_ASSERT(NULL != s);
return const_cast<char_type*>(::strchr(s, ch)); }
static char_type* str_rchr(char_type const* s, char_type ch) { WINSTL_ASSERT(NULL != s);
return const_cast<char_type*>(::strrchr(s, ch)); }
static char_type* str_str(char_type const* s, char_type const* sub) { WINSTL_ASSERT(NULL != s); WINSTL_ASSERT(NULL != sub);
return const_cast<char_type*>(::strstr(s, sub)); }
static char_type* str_pbrk(char_type const* s, char_type const* charSet) { WINSTL_ASSERT(NULL != s); WINSTL_ASSERT(NULL != charSet);
return const_cast<char_type*>(::strpbrk(s, charSet)); }
static char_type* str_end(char_type const* s) { WINSTL_ASSERT(NULL != s);
for(; *s != '\0'; ++s) {}
return const_cast<char_type*>(s); }
static char_type* str_set(char_type* s, size_type n, char_type c) { WINSTL_ASSERT(NULL != s || 0u == n);
for(; 0u != n; --n, ++s) { *s = c; }
return s; }
public: #ifndef NONLS
static int_type get_locale_info(LCID locale, LCTYPE type, char_type* data, int cchData) { return ::GetLocaleInfoA(locale, type, data, cchData); } #endif /* !NONLS */
public: static size_type get_module_filename(HMODULE hModule, char_type* buffer, size_type cchBuffer) { WINSTL_ASSERT(NULL != buffer || 0 == cchBuffer);
if(0 == cchBuffer) { char_type buff[1 + WINSTL_CONST_MAX_PATH];
return get_module_filename(hModule, &buff[0], STLSOFT_NUM_ELEMENTS(buff)); }
return class_type::GetModuleFileNameA(hModule, buffer, cchBuffer); }
static size_type get_module_directory(HMODULE hModule, char_type* buffer, size_type cchBuffer) { WINSTL_ASSERT(NULL != buffer || 0 == cchBuffer);
size_type cch = get_module_filename(hModule, buffer, cchBuffer);
if( 0 != cch && cch < cchBuffer) { buffer[cch] = '\0';
char_type *s = str_rchr(buffer, '\\');
if(NULL != s) { *s = '\0';
cch = static_cast<size_type>(s - buffer); } }
return cch; }
static size_type get_system_directory(char_type* buffer, size_type cchBuffer) { WINSTL_ASSERT(NULL != buffer || 0 == cchBuffer);
return class_type::GetSystemDirectoryA(buffer, cchBuffer); }
static size_type get_windows_directory(char_type* buffer, size_type cchBuffer) { WINSTL_ASSERT(NULL != buffer || 0 == cchBuffer);
return class_type::GetWindowsDirectoryA(buffer, cchBuffer); }
public: static module_type load_library(char_type const* name) { WINSTL_ASSERT(NULL != name);
return ::LoadLibraryA(name); }
static bool_type free_library(module_type hModule) { return system_traits_::free_library(hModule); }
static FARPROC find_symbol(module_type hModule, char const* symbolName) { WINSTL_ASSERT(NULL != symbolName);
return system_traits_::find_symbol(hModule, symbolName); }
static bool_type close_handle(handle_type h) { return system_traits_::close_handle(h); }
public: static error_type get_last_error() { return system_traits_::get_last_error(); }
static void set_last_error(error_type er = error_type()) { system_traits_::set_last_error(er); }
public: static size_type get_environment_variable(char_type const* name, char_type* buffer, size_type cchBuffer) { WINSTL_ASSERT(NULL != name); WINSTL_ASSERT(NULL != buffer || 0 == cchBuffer);
char_type dummy[1];
// If the buffer is NULL, we set it to a local buffer and cchBuffer
// to 0, which will cause the API function to return the required
// number of variables
if(NULL == buffer) { buffer = &dummy[0]; cchBuffer = 0u; }
size_type n = class_type::GetEnvironmentVariableA(name, buffer, cchBuffer);
if(n > cchBuffer) { --n; // GetEnvironmentVariable always gives size of string + nul terminator
}
if( 0u != cchBuffer && n >= cchBuffer) { typedef system_traits_::scoped_mem_block scoped_mem_block;
char_type* buffer2 = scoped_mem_block::allocate_string_buffer_a(n);
if(NULL == buffer2) { return 0; } else { scoped_mem_block block(buffer2); size_type n2 = class_type::GetEnvironmentVariableA(name, buffer2, 1 + n);
if(n2 > cchBuffer) { n2 = cchBuffer; }
char_copy(buffer, buffer2, n2);
return n2; } }
return n; }
static size_type expand_environment_strings(char_type const* src, char_type* dest, size_type cch_dest) { WINSTL_ASSERT(NULL != src); WINSTL_ASSERT(NULL != dest || 0 == cch_dest);
return class_type::ExpandEnvironmentStringsA(src, dest, cch_dest); }
private: static size_type GetModuleFileNameA(HMODULE hModule, char_type* buffer, size_type cchBuffer) { #ifdef _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING
# ifdef STLSOFT_CF_EXCEPTION_SUPPORT
return ::GetModuleFileNameA(hModule, buffer, stlsoft_ns_qual(truncation_cast)<DWORD>(cchBuffer)); # else /* ? STLSOFT_CF_EXCEPTION_SUPPORT */
WINSTL_MESSAGE_ASSERT("buffer size out of range", stlsoft_ns_qual(truncation_test)<DWORD>(cchBuffer));
return ::GetModuleFileNameA(hModule, buffer, static_cast<DWORD>(cchBuffer)); # endif /* STLSOFT_CF_EXCEPTION_SUPPORT */
#else /* ? _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING */
return ::GetModuleFileNameA(hModule, buffer, cchBuffer); #endif /* _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING */
}
static size_type GetSystemDirectoryA(char_type* buffer, size_type cchBuffer) { #ifdef _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING
# ifdef STLSOFT_CF_EXCEPTION_SUPPORT
return ::GetSystemDirectoryA(buffer, stlsoft_ns_qual(truncation_cast)<DWORD>(cchBuffer)); # else /* ? STLSOFT_CF_EXCEPTION_SUPPORT */
WINSTL_MESSAGE_ASSERT("buffer size out of range", stlsoft_ns_qual(truncation_test)<DWORD>(cchBuffer));
return ::GetSystemDirectoryA(buffer, static_cast<DWORD>(cchBuffer)); # endif /* STLSOFT_CF_EXCEPTION_SUPPORT */
#else /* ? _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING */
return ::GetSystemDirectoryA(buffer, cchBuffer); #endif /* _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING */
}
static size_type GetWindowsDirectoryA(char_type* buffer, size_type cchBuffer) { #ifdef _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING
# ifdef STLSOFT_CF_EXCEPTION_SUPPORT
return ::GetWindowsDirectoryA(buffer, stlsoft_ns_qual(truncation_cast)<DWORD>(cchBuffer)); # else /* ? STLSOFT_CF_EXCEPTION_SUPPORT */
WINSTL_MESSAGE_ASSERT("buffer size out of range", stlsoft_ns_qual(truncation_test)<DWORD>(cchBuffer));
return ::GetWindowsDirectoryA(buffer, static_cast<DWORD>(cchBuffer)); # endif /* STLSOFT_CF_EXCEPTION_SUPPORT */
#else /* ? _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING */
return ::GetWindowsDirectoryA(buffer, cchBuffer); #endif /* _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING */
}
static size_type GetEnvironmentVariableA(char_type const* name, char_type* buffer, size_type cchBuffer) { #ifdef _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING
# ifdef STLSOFT_CF_EXCEPTION_SUPPORT
return ::GetEnvironmentVariableA(name, buffer, stlsoft_ns_qual(truncation_cast)<DWORD>(cchBuffer)); # else /* ? STLSOFT_CF_EXCEPTION_SUPPORT */
WINSTL_MESSAGE_ASSERT("buffer size out of range", stlsoft_ns_qual(truncation_test)<DWORD>(cchBuffer));
return ::GetEnvironmentVariableA(name, buffer, static_cast<DWORD>(cchBuffer)); # endif /* STLSOFT_CF_EXCEPTION_SUPPORT */
#else /* ? _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING */
return ::GetEnvironmentVariableA(name, buffer, cchBuffer); #endif /* _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING */
}
static size_type ExpandEnvironmentStringsA(char_type const* src, char_type* dest, size_type cch_dest) { #ifdef _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING
# ifdef STLSOFT_CF_EXCEPTION_SUPPORT
return ::ExpandEnvironmentStringsA(src, dest, stlsoft_ns_qual(truncation_cast)<DWORD>(cch_dest)); # else /* ? STLSOFT_CF_EXCEPTION_SUPPORT */
WINSTL_MESSAGE_ASSERT("buffer size out of range", stlsoft_ns_qual(truncation_test)<DWORD>(cch_dest));
return ::ExpandEnvironmentStringsA(src, dest, static_cast<DWORD>(cch_dest)); # endif /* STLSOFT_CF_EXCEPTION_SUPPORT */
#else /* ? _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING */
return ::ExpandEnvironmentStringsA(src, dest, cch_dest); #endif /* _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING */
} };
STLSOFT_TEMPLATE_SPECIALISATION struct system_traits<ws_char_w_t> { public: typedef ws_char_w_t char_type; typedef ws_size_t size_type; typedef ws_ptrdiff_t difference_type; typedef system_traits<char_type> class_type; typedef ws_int_t int_type; typedef ws_bool_t bool_type; typedef HMODULE module_type; typedef HANDLE handle_type; typedef DWORD result_code_type; typedef DWORD error_type;
public: static char_type* char_copy(char_type* dest, char_type const* src, size_type n) { WINSTL_ASSERT(NULL != dest); WINSTL_ASSERT(0 == n || NULL != src);
return static_cast<char_type*>(::memcpy(dest, src, sizeof(char_type) * n)); }
#if !defined(STLSOFT_USING_SAFE_STR_FUNCTIONS) || \
defined(_CRT_SECURE_NO_DEPRECATE) static char_type* str_copy(char_type* dest, char_type const* src) { WINSTL_ASSERT(NULL != dest); WINSTL_ASSERT(NULL != src);
# ifdef STLSOFT_MIN_CRT
return ::lstrcpyW(dest, src); # else /*? STLSOFT_MIN_CRT */
return ::wcscpy(dest, src); # endif /* STLSOFT_MIN_CRT */
}
static char_type* str_n_copy(char_type* dest, char_type const* src, size_type cch) { WINSTL_ASSERT(NULL != dest); WINSTL_ASSERT(0 == cch || NULL != src);
return ::wcsncpy(dest, src, cch); }
static char_type* str_cat(char_type* dest, char_type const* src) { WINSTL_ASSERT(NULL != dest); WINSTL_ASSERT(NULL != src);
# ifdef STLSOFT_MIN_CRT
return ::lstrcatW(dest, src); # else /*? STLSOFT_MIN_CRT */
return ::wcscat(dest, src); # endif /* STLSOFT_MIN_CRT */
}
static char_type* str_n_cat(char_type* dest, char_type const* src, size_type cch) { WINSTL_ASSERT(NULL != dest); WINSTL_ASSERT(NULL != src);
return ::wcsncat(dest, src, cch); } #endif /* !STLSOFT_USING_SAFE_STR_FUNCTIONS || _CRT_SECURE_NO_DEPRECATE */
static int_type str_compare(char_type const* s1, char_type const* s2) { WINSTL_ASSERT(NULL != s1); WINSTL_ASSERT(NULL != s2);
#ifdef STLSOFT_MIN_CRT
return ::lstrcmpW(s1, s2); #else /*? STLSOFT_MIN_CRT */
return ::wcscmp(s1, s2); #endif /* STLSOFT_MIN_CRT */
}
static int_type str_compare_no_case(char_type const* s1, char_type const* s2) { WINSTL_ASSERT(NULL != s1); WINSTL_ASSERT(NULL != s2);
return ::lstrcmpiW(s1, s2); }
static int_type str_n_compare(char_type const* s1, char_type const* s2, size_type cch) { WINSTL_ASSERT(NULL != s1); WINSTL_ASSERT(NULL != s2);
return ::wcsncmp(s1, s2, cch); }
// TODO: move all these into internal, C-compatible, service files
//
// #include <stlsoft/system/apis/string/wcsnicmp.h
#ifdef WINSTL_SYSTEM_TRAITS_HAS_wcsnicmp_
# undef WINSTL_SYSTEM_TRAITS_HAS_wcsnicmp_
#endif /* WINSTL_SYSTEM_TRAITS_HAS_wcsnicmp_ */
#ifdef WINSTL_SYSTEM_TRAITS_HAS__wcsnicmp_
# undef WINSTL_SYSTEM_TRAITS_HAS__wcsnicmp_
#endif /* WINSTL_SYSTEM_TRAITS_HAS__wcsnicmp_ */
#if defined(STLSOFT_COMPILER_IS_BORLAND)
# if !defined(__STDC__)
# define WINSTL_SYSTEM_TRAITS_HAS_wcsnicmp_
# endif
# if !defined(__MFC_COMPAT__)
# define WINSTL_SYSTEM_TRAITS_HAS__wcsnicmp_
# endif
#elif defined(STLSOFT_COMPILER_IS_DMC)
# define WINSTL_SYSTEM_TRAITS_HAS__wcsnicmp_
#elif defined(STLSOFT_COMPILER_IS_GCC)
# if !defined(__STRICT_ANSI__)
# define WINSTL_SYSTEM_TRAITS_HAS__wcsnicmp_
# endif
#elif defined(STLSOFT_COMPILER_IS_INTEL) || \
defined(STLSOFT_COMPILER_IS_MSVC) # if !defined(__STDC__)
# define WINSTL_SYSTEM_TRAITS_HAS_wcsnicmp_
# endif
# define WINSTL_SYSTEM_TRAITS_HAS__wcsnicmp_
#elif defined(STLSOFT_COMPILER_IS_MWERKS)
# define WINSTL_SYSTEM_TRAITS_HAS_wcsnicmp_
# define WINSTL_SYSTEM_TRAITS_HAS__wcsnicmp_
#elif defined(STLSOFT_COMPILER_IS_WATCOM)
# define WINSTL_SYSTEM_TRAITS_HAS__wcsnicmp_
#endif /* compiler */
#if defined(WINSTL_SYSTEM_TRAITS_HAS_wcsnicmp_) || \
defined(WINSTL_SYSTEM_TRAITS_HAS__wcsnicmp_) static int_type str_n_compare_no_case(char_type const* s1, char_type const* s2, size_type cch) { WINSTL_ASSERT(NULL != s1); WINSTL_ASSERT(NULL != s2);
# if defined(WINSTL_SYSTEM_TRAITS_HAS__wcsnicmp_)
return ::_wcsnicmp(s1, s2, cch); # elif defined(WINSTL_SYSTEM_TRAITS_HAS_wcsnicmp_)
return ::wcsnicmp(s1, s2, cch); # else
# error
# endif
} #else /* ? compiler */
static int_type str_n_compare_no_case(char_type const* s1, char_type const* s2, size_type cch); #endif /* compiler */
static size_type str_len(char_type const* src) { WINSTL_ASSERT(NULL != src);
#ifdef STLSOFT_MIN_CRT
return static_cast<size_type>(::lstrlenW(src)); #else /*? STLSOFT_MIN_CRT */
return ::wcslen(src); #endif /* STLSOFT_MIN_CRT */
}
static char_type* str_chr(char_type const* s, char_type ch) { WINSTL_ASSERT(NULL != s);
return const_cast<char_type*>(::wcschr(s, ch)); }
static char_type* str_rchr(char_type const* s, char_type ch) { WINSTL_ASSERT(NULL != s);
return const_cast<char_type*>(::wcsrchr(s, ch)); }
static char_type* str_str(char_type const* s, char_type const* sub) { WINSTL_ASSERT(NULL != s); WINSTL_ASSERT(NULL != sub);
return const_cast<char_type*>(::wcsstr(s, sub)); }
static char_type* str_pbrk(char_type const* s, char_type const* charSet) { WINSTL_ASSERT(NULL != s); WINSTL_ASSERT(NULL != charSet);
return const_cast<char_type*>(::wcspbrk(s, charSet)); }
static char_type* str_end(char_type const* s) { WINSTL_ASSERT(NULL != s);
for(; *s != L'\0'; ++s) {}
return const_cast<char_type*>(s); }
static char_type* str_set(char_type* s, size_type n, char_type c) { WINSTL_ASSERT(NULL != s || 0u == n);
for(; 0u != n; --n, ++s) { *s = c; }
return s; }
public: #ifndef NONLS
static int_type get_locale_info(LCID locale, LCTYPE type, char_type* data, int cchData) { return ::GetLocaleInfoW(locale, type, data, cchData); } #endif /* !NONLS */
public: static size_type get_module_filename(HMODULE hModule, char_type* buffer, size_type cchBuffer) { WINSTL_ASSERT(NULL != buffer || 0 == cchBuffer);
if(0 == cchBuffer) { char_type buff[1 + WINSTL_CONST_MAX_PATH]; size_type cch = get_module_filename(hModule, &buff[0], STLSOFT_NUM_ELEMENTS(buff));
if(0 == str_compare(L"\\\\?\\", buff)) { return CONST_NT_MAX_PATH; } else { return cch; } }
return class_type::GetModuleFileNameW(hModule, buffer, cchBuffer); }
static size_type get_module_directory(HMODULE hModule, char_type* buffer, size_type cchBuffer) { WINSTL_ASSERT(NULL != buffer || 0 == cchBuffer);
size_type cch = get_module_filename(hModule, buffer, cchBuffer);
if( 0 != cch && cch < cchBuffer) { buffer[cch] = '\0';
char_type *s = str_rchr(buffer, '\\');
if(NULL != s) { *s = '\0';
cch = static_cast<size_type>(s - buffer); } }
return cch; }
static size_type get_system_directory(char_type* buffer, size_type cchBuffer) { WINSTL_ASSERT(NULL != buffer || 0 == cchBuffer);
return class_type::GetSystemDirectoryW(buffer, cchBuffer); }
static size_type get_windows_directory(char_type* buffer, size_type cchBuffer) { WINSTL_ASSERT(NULL != buffer || 0 == cchBuffer);
return class_type::GetWindowsDirectoryW(buffer, cchBuffer); }
public: static module_type load_library(char_type const* name) { WINSTL_ASSERT(NULL != name);
return ::LoadLibraryW(name); }
static bool_type free_library(module_type hModule) { return system_traits_::free_library(hModule); }
static FARPROC find_symbol(module_type hModule, char const* symbolName) { WINSTL_ASSERT(NULL != symbolName);
return system_traits_::find_symbol(hModule, symbolName); }
public: static bool_type close_handle(handle_type h) { return system_traits_::close_handle(h); }
public: static error_type get_last_error() { return system_traits_::get_last_error(); }
static void set_last_error(error_type er = error_type()) { system_traits_::set_last_error(er); }
public: static size_type get_environment_variable(char_type const* name, char_type* buffer, size_type cchBuffer) { WINSTL_ASSERT(NULL != name); WINSTL_ASSERT(NULL != buffer || 0 == cchBuffer);
char_type dummy[1];
// If the buffer is NULL, we set it to a local buffer and cchBuffer
// to 0, which will cause the API function to return the required
// number of variables
if(NULL == buffer) { buffer = &dummy[0]; cchBuffer = 0u; }
size_type n = class_type::GetEnvironmentVariableW(name, buffer, cchBuffer);
if(n > cchBuffer) { --n; // GetEnvironmentVariable always gives size of string + nul terminator
}
if( 0u != cchBuffer && n >= cchBuffer) { typedef system_traits_::scoped_mem_block scoped_mem_block;
char_type* buffer2 = scoped_mem_block::allocate_string_buffer_w(n);
if(NULL == buffer2) { return 0; } else { scoped_mem_block block(buffer2); size_type n2 = class_type::GetEnvironmentVariableW(name, buffer2, 1 + n);
if(n2 > cchBuffer) { n2 = cchBuffer; }
char_copy(buffer, buffer2, n2);
return n2; } }
return n; }
static size_type expand_environment_strings(char_type const* src, char_type* dest, size_type cch_dest) { WINSTL_ASSERT(NULL != src); WINSTL_ASSERT(NULL != dest || 0 == cch_dest);
return class_type::ExpandEnvironmentStringsW(src, dest, cch_dest); }
private: static size_type GetModuleFileNameW(HMODULE hModule, char_type* buffer, size_type cchBuffer) { #ifdef _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING
# ifdef STLSOFT_CF_EXCEPTION_SUPPORT
return ::GetModuleFileNameW(hModule, buffer, stlsoft_ns_qual(truncation_cast)<DWORD>(cchBuffer)); # else /* ? STLSOFT_CF_EXCEPTION_SUPPORT */
WINSTL_MESSAGE_ASSERT("buffer size out of range", stlsoft_ns_qual(truncation_test)<DWORD>(cchBuffer));
return ::GetModuleFileNameW(hModule, buffer, static_cast<DWORD>(cchBuffer)); # endif /* STLSOFT_CF_EXCEPTION_SUPPORT */
#else /* ? _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING */
return ::GetModuleFileNameW(hModule, buffer, cchBuffer); #endif /* _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING */
}
static size_type GetSystemDirectoryW(char_type* buffer, size_type cchBuffer) { #ifdef _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING
# ifdef STLSOFT_CF_EXCEPTION_SUPPORT
return ::GetSystemDirectoryW(buffer, stlsoft_ns_qual(truncation_cast)<DWORD>(cchBuffer)); # else /* ? STLSOFT_CF_EXCEPTION_SUPPORT */
WINSTL_MESSAGE_ASSERT("buffer size out of range", stlsoft_ns_qual(truncation_test)<DWORD>(cchBuffer));
return ::GetSystemDirectoryW(buffer, static_cast<DWORD>(cchBuffer)); # endif /* STLSOFT_CF_EXCEPTION_SUPPORT */
#else /* ? _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING */
return ::GetSystemDirectoryW(buffer, cchBuffer); #endif /* _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING */
}
static size_type GetWindowsDirectoryW(char_type* buffer, size_type cchBuffer) { #ifdef _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING
# ifdef STLSOFT_CF_EXCEPTION_SUPPORT
return ::GetWindowsDirectoryW(buffer, stlsoft_ns_qual(truncation_cast)<DWORD>(cchBuffer)); # else /* ? STLSOFT_CF_EXCEPTION_SUPPORT */
WINSTL_MESSAGE_ASSERT("buffer size out of range", stlsoft_ns_qual(truncation_test)<DWORD>(cchBuffer));
return ::GetWindowsDirectoryW(buffer, static_cast<DWORD>(cchBuffer)); # endif /* STLSOFT_CF_EXCEPTION_SUPPORT */
#else /* ? _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING */
return ::GetWindowsDirectoryW(buffer, cchBuffer); #endif /* _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING */
}
static size_type GetEnvironmentVariableW(char_type const* name, char_type* buffer, size_type cchBuffer) { #ifdef _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING
# ifdef STLSOFT_CF_EXCEPTION_SUPPORT
return ::GetEnvironmentVariableW(name, buffer, stlsoft_ns_qual(truncation_cast)<DWORD>(cchBuffer)); # else /* ? STLSOFT_CF_EXCEPTION_SUPPORT */
WINSTL_MESSAGE_ASSERT("buffer size out of range", stlsoft_ns_qual(truncation_test)<DWORD>(cchBuffer));
return ::GetEnvironmentVariableW(name, buffer, static_cast<DWORD>(cchBuffer)); # endif /* STLSOFT_CF_EXCEPTION_SUPPORT */
#else /* ? _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING */
return ::GetEnvironmentVariableW(name, buffer, cchBuffer); #endif /* _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING */
}
static size_type ExpandEnvironmentStringsW(char_type const* src, char_type* dest, size_type cch_dest) { #ifdef _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING
# ifdef STLSOFT_CF_EXCEPTION_SUPPORT
return ::ExpandEnvironmentStringsW(src, dest, stlsoft_ns_qual(truncation_cast)<DWORD>(cch_dest)); # else /* ? STLSOFT_CF_EXCEPTION_SUPPORT */
WINSTL_MESSAGE_ASSERT("buffer size out of range", stlsoft_ns_qual(truncation_test)<DWORD>(cch_dest));
return ::ExpandEnvironmentStringsW(src, dest, static_cast<DWORD>(cch_dest)); # endif /* STLSOFT_CF_EXCEPTION_SUPPORT */
#else /* ? _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING */
return ::ExpandEnvironmentStringsW(src, dest, cch_dest); #endif /* _WINSTL_SYSTEM_TRAITS_USE_TRUNCATION_TESTING */
} };
#endif /* STLSOFT_DOCUMENTATION_SKIP_SECTION */
/* /////////////////////////////////////////////////////////////////////////
* Unit-testing */
#ifdef STLSOFT_UNITTEST
# include "./unittest/system_traits_unittest_.h"
#endif /* STLSOFT_UNITTEST */
/* ////////////////////////////////////////////////////////////////////// */
#ifndef _WINSTL_NO_NAMESPACE
# if defined(_STLSOFT_NO_NAMESPACE) || \
defined(STLSOFT_DOCUMENTATION_SKIP_SECTION) } // namespace winstl
# else
} // namespace winstl_project
} // namespace stlsoft
# endif /* _STLSOFT_NO_NAMESPACE */
#endif /* !_WINSTL_NO_NAMESPACE */
/* ////////////////////////////////////////////////////////////////////// */
#endif /* WINSTL_INCL_WINSTL_SYSTEM_HPP_SYSTEM_TRAITS */
/* ///////////////////////////// end of file //////////////////////////// */
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