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Merge pull request #167 from cpsauer/dynamic-selection-more-apple-platforms
This commit is contained in:
gulrak
GitHub
commit
144954ff4e
151
README.md
151
README.md
@ -176,43 +176,68 @@ Everything is in the namespace `ghc::filesystem`, so one way to use it only as
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a fallback could be:
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```cpp
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#ifdef __APPLE__
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#include <Availability.h> // for deployment target to support pre-catalina targets without std::fs
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#endif
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#if ((defined(_MSVC_LANG) && _MSVC_LANG >= 201703L) || (defined(__cplusplus) && __cplusplus >= 201703L)) && defined(__has_include)
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#if __has_include(<filesystem>) && (!defined(__MAC_OS_X_VERSION_MIN_REQUIRED) || __MAC_OS_X_VERSION_MIN_REQUIRED >= 101500)
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#if _MSVC_LANG >= 201703L || __cplusplus >= 201703L && defined(__has_include)
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// ^ Supports MSVC prior to 15.7 without setting /Zc:__cplusplus to fix __cplusplus
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// _MSVC_LANG works regardless. But without the switch, the compiler always reported 199711L: https://blogs.msdn.microsoft.com/vcblog/2018/04/09/msvc-now-correctly-reports-__cplusplus/
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#if __has_include(<filesystem>) // Two stage __has_include needed for MSVC 2015 and per https://gcc.gnu.org/onlinedocs/cpp/_005f_005fhas_005finclude.html
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#define GHC_USE_STD_FS
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// Old Apple OSs don't support std::filesystem, though the header is available at compile
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// time. In particular, std::filesystem is unavailable before macOS 10.15, iOS/tvOS 13.0,
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// and watchOS 6.0.
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#ifdef __APPLE__
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#include <Availability.h>
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// Note: This intentionally uses std::filesystem on any new Apple OS, like visionOS
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// released after std::filesystem, where std::filesystem is always available.
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// (All other __<platform>_VERSION_MIN_REQUIREDs will be undefined and thus 0.)
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#if __MAC_OS_X_VERSION_MIN_REQUIRED && __MAC_OS_X_VERSION_MIN_REQUIRED < 101500 \
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|| __IPHONE_OS_VERSION_MIN_REQUIRED && __IPHONE_OS_VERSION_MIN_REQUIRED < 130000 \
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|| __TV_OS_VERSION_MIN_REQUIRED && __TV_OS_VERSION_MIN_REQUIRED < 130000 \
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|| __WATCH_OS_VERSION_MAX_ALLOWED && __WATCH_OS_VERSION_MAX_ALLOWED < 60000
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#undef GHC_USE_STD_FS
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#endif
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#endif
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#endif
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#endif
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#ifdef GHC_USE_STD_FS
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#include <filesystem>
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namespace fs = std::filesystem;
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#endif
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#endif
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#ifndef GHC_USE_STD_FS
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#include <ghc/filesystem.hpp>
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#else
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#include "filesystem.hpp"
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namespace fs = ghc::filesystem;
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#endif
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```
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**Note that this code uses a two-stage preprocessor condition because Visual Studio 2015
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doesn't like the `(<...>)` syntax, even if it could cut evaluation early before. This code also
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used the minimum deployment target to detect if `std::filesystem` really is available on macOS
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compilation.**
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**Note also, this detection now works on MSVC versions prior to 15.7 on, or without setting
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the `/Zc:__cplusplus` compile switch that would fix `__cplusplus` on MSVC. (Without the switch
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the compiler always reports `199711L`
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([see](https://blogs.msdn.microsoft.com/vcblog/2018/04/09/msvc-now-correctly-reports-__cplusplus/)),
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but `_MSVC_LANG` works without it.**
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If you want to also use the `fstream` wrapper with `path` support as fallback,
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you might use:
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```cpp
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#ifdef __APPLE__
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#include <Availability.h> // for deployment target to support pre-catalina targets without std::fs
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#endif
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#if ((defined(_MSVC_LANG) && _MSVC_LANG >= 201703L) || (defined(__cplusplus) && __cplusplus >= 201703L)) && defined(__has_include)
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#if __has_include(<filesystem>) && (!defined(__MAC_OS_X_VERSION_MIN_REQUIRED) || __MAC_OS_X_VERSION_MIN_REQUIRED >= 101500)
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#if _MSVC_LANG >= 201703L || __cplusplus >= 201703L && defined(__has_include)
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// ^ Supports MSVC prior to 15.7 without setting /Zc:__cplusplus to fix __cplusplus
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// _MSVC_LANG works regardless. But without the switch, the compiler always reported 199711L: https://blogs.msdn.microsoft.com/vcblog/2018/04/09/msvc-now-correctly-reports-__cplusplus/
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#if __has_include(<filesystem>) // Two stage __has_include needed for MSVC 2015 and per https://gcc.gnu.org/onlinedocs/cpp/_005f_005fhas_005finclude.html
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#define GHC_USE_STD_FS
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// Old Apple OSs don't support std::filesystem, though the header is available at compile
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// time. In particular, std::filesystem is unavailable before macOS 10.15, iOS/tvOS 13.0,
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// and watchOS 6.0.
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#ifdef __APPLE__
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#include <Availability.h>
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// Note: This intentionally uses std::filesystem on any new Apple OS, like visionOS
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// released after std::filesystem, where std::filesystem is always available.
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// (All other __<platform>_VERSION_MIN_REQUIREDs will be undefined and thus 0.)
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#if __MAC_OS_X_VERSION_MIN_REQUIRED && __MAC_OS_X_VERSION_MIN_REQUIRED < 101500 \
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|| __IPHONE_OS_VERSION_MIN_REQUIRED && __IPHONE_OS_VERSION_MIN_REQUIRED < 130000 \
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|| __TV_OS_VERSION_MIN_REQUIRED && __TV_OS_VERSION_MIN_REQUIRED < 130000 \
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|| __WATCH_OS_VERSION_MAX_ALLOWED && __WATCH_OS_VERSION_MAX_ALLOWED < 60000
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#undef GHC_USE_STD_FS
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#endif
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#endif
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#endif
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#endif
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#ifdef GHC_USE_STD_FS
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#include <filesystem>
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namespace fs {
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using namespace std::filesystem;
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@ -220,10 +245,8 @@ using ifstream = std::ifstream;
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using ofstream = std::ofstream;
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using fstream = std::fstream;
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}
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#endif
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#endif
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#ifndef GHC_USE_STD_FS
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#include <ghc/filesystem.hpp>
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#else
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#include "filesystem.hpp"
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namespace fs {
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using namespace ghc::filesystem;
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using ifstream = ghc::filesystem::ifstream;
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@ -269,12 +292,31 @@ If you use the forwarding/implementation approach, you can still use the dynamic
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switching like this:
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```cpp
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#ifdef __APPLE__
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#include <Availability.h> // for deployment target to support pre-catalina targets without std::fs
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#endif
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#if ((defined(_MSVC_LANG) && _MSVC_LANG >= 201703L) || (defined(__cplusplus) && __cplusplus >= 201703L)) && defined(__has_include)
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#if __has_include(<filesystem>) && (!defined(__MAC_OS_X_VERSION_MIN_REQUIRED) || __MAC_OS_X_VERSION_MIN_REQUIRED >= 101500)
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#if _MSVC_LANG >= 201703L || __cplusplus >= 201703L && defined(__has_include)
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// ^ Supports MSVC prior to 15.7 without setting /Zc:__cplusplus to fix __cplusplus
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// _MSVC_LANG works regardless. But without the switch, the compiler always reported 199711L: https://blogs.msdn.microsoft.com/vcblog/2018/04/09/msvc-now-correctly-reports-__cplusplus/
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#if __has_include(<filesystem>) // Two stage __has_include needed for MSVC 2015 and per https://gcc.gnu.org/onlinedocs/cpp/_005f_005fhas_005finclude.html
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#define GHC_USE_STD_FS
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// Old Apple OSs don't support std::filesystem, though the header is available at compile
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// time. In particular, std::filesystem is unavailable before macOS 10.15, iOS/tvOS 13.0,
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// and watchOS 6.0.
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#ifdef __APPLE__
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#include <Availability.h>
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// Note: This intentionally uses std::filesystem on any new Apple OS, like visionOS
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// released after std::filesystem, where std::filesystem is always available.
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// (All other __<platform>_VERSION_MIN_REQUIREDs will be undefined and thus 0.)
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#if __MAC_OS_X_VERSION_MIN_REQUIRED && __MAC_OS_X_VERSION_MIN_REQUIRED < 101500 \
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|| __IPHONE_OS_VERSION_MIN_REQUIRED && __IPHONE_OS_VERSION_MIN_REQUIRED < 130000 \
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|| __TV_OS_VERSION_MIN_REQUIRED && __TV_OS_VERSION_MIN_REQUIRED < 130000 \
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|| __WATCH_OS_VERSION_MAX_ALLOWED && __WATCH_OS_VERSION_MAX_ALLOWED < 60000
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#undef GHC_USE_STD_FS
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#endif
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#endif
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#endif
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#endif
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#ifdef GHC_USE_STD_FS
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#include <filesystem>
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namespace fs {
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using namespace std::filesystem;
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@ -282,10 +324,8 @@ using ifstream = std::ifstream;
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using ofstream = std::ofstream;
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using fstream = std::fstream;
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}
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#endif
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#endif
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#ifndef GHC_USE_STD_FS
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#include <ghc/fs-fwd.hpp>
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#else
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#include "fs_fwd.hpp"
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namespace fs {
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using namespace ghc::filesystem;
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using ifstream = ghc::filesystem::ifstream;
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@ -299,25 +339,38 @@ and in the implementation hiding cpp, you might use (before any include that inc
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to take precedence:
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```cpp
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#ifdef __APPLE__ // for deployment target to support pre-catalina targets without std::fs
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#include <Availability.h>
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#endif
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#if ((defined(_MSVC_LANG) && _MSVC_LANG >= 201703L) || (defined(__cplusplus) && __cplusplus >= 201703L)) && defined(__has_include)
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#if __has_include(<filesystem>) && (!defined(__MAC_OS_X_VERSION_MIN_REQUIRED) || __MAC_OS_X_VERSION_MIN_REQUIRED >= 101500)
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#if _MSVC_LANG >= 201703L || __cplusplus >= 201703L && defined(__has_include)
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// ^ Supports MSVC prior to 15.7 without setting /Zc:__cplusplus to fix __cplusplus
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// _MSVC_LANG works regardless. But without the switch, the compiler always reported 199711L: https://blogs.msdn.microsoft.com/vcblog/2018/04/09/msvc-now-correctly-reports-__cplusplus/
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#if __has_include(<filesystem>) // Two stage __has_include needed for MSVC 2015 and per https://gcc.gnu.org/onlinedocs/cpp/_005f_005fhas_005finclude.html
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#define GHC_USE_STD_FS
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// Old Apple OSs don't support std::filesystem, though the header is available at compile
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// time. In particular, std::filesystem is unavailable before macOS 10.15, iOS/tvOS 13.0,
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// and watchOS 6.0.
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#ifdef __APPLE__
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#include <Availability.h>
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// Note: This intentionally uses std::filesystem on any new Apple OS, like visionOS
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// released after std::filesystem, where std::filesystem is always available.
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// (All other __<platform>_VERSION_MIN_REQUIREDs will be undefined and thus 0.)
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#if __MAC_OS_X_VERSION_MIN_REQUIRED && __MAC_OS_X_VERSION_MIN_REQUIRED < 101500 \
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|| __IPHONE_OS_VERSION_MIN_REQUIRED && __IPHONE_OS_VERSION_MIN_REQUIRED < 130000 \
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|| __TV_OS_VERSION_MIN_REQUIRED && __TV_OS_VERSION_MIN_REQUIRED < 130000 \
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|| __WATCH_OS_VERSION_MAX_ALLOWED && __WATCH_OS_VERSION_MAX_ALLOWED < 60000
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#undef GHC_USE_STD_FS
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#endif
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#endif
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#endif
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#endif
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#ifndef GHC_USE_STD_FS
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#define GHC_FILESYSTEM_IMPLEMENTATION
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#include <ghc/filesystem.hpp>
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#include "fs_impl.hpp"
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#endif
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```
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:information_source: **Hint:** There are additional helper headers, named `ghc/fs_std_fwd.hpp` and
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`ghc/fs_std_impl.hpp` that use this technique, so you can simply include them
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if you want to dynamically select the filesystem implementation. they also
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enable the `wchar_t` support on `ghc::filesystem` on Windows, so the resulting
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implementation in the `fs` namespace will be compatible.
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if you want to dynamically select the filesystem implementation.
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@ -409,7 +462,7 @@ int main(int argc, char* argv[])
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exit(EXIT_FAILURE);
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}
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// now use argc/argv as usual, they have utf-8 enconding on windows
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// now use argc/argv as usual, they have utf-8 encoding on windows
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// ...
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return 0;
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@ -25,23 +25,6 @@
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// SOFTWARE.
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//
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//---------------------------------------------------------------------------------------
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//
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// To dynamically select std::filesystem where available on most platforms,
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// you could use:
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//
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// #if ((defined(_MSVC_LANG) && _MSVC_LANG >= 201703L) || (defined(__cplusplus) && __cplusplus >= 201703L)) && defined(__has_include)
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// #if __has_include(<filesystem>) && (!defined(__MAC_OS_X_VERSION_MIN_REQUIRED) || __MAC_OS_X_VERSION_MIN_REQUIRED >= 101500)
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// #define GHC_USE_STD_FS
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// #include <filesystem>
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// namespace fs = std::filesystem;
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// #endif
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// #endif
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// #ifndef GHC_USE_STD_FS
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// #include <ghc/filesystem.hpp>
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// namespace fs = ghc::filesystem;
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// #endif
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//
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//---------------------------------------------------------------------------------------
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#ifndef GHC_FILESYSTEM_H
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#define GHC_FILESYSTEM_H
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@ -53,7 +36,7 @@
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#ifndef GHC_OS_DETECTED
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#if defined(__APPLE__) && defined(__MACH__)
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#define GHC_OS_MACOS
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#define GHC_OS_APPLE
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#elif defined(__linux__)
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#define GHC_OS_LINUX
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#if defined(__ANDROID__)
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@ -181,7 +164,7 @@
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#include <langinfo.h>
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#endif
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#endif
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#ifdef GHC_OS_MACOS
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#ifdef GHC_OS_APPLE
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#include <Availability.h>
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#endif
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@ -4650,9 +4633,11 @@ GHC_INLINE void last_write_time(const path& p, file_time_type new_time, std::err
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if (!::SetFileTime(file.get(), 0, 0, &ft)) {
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ec = detail::make_system_error();
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}
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#elif defined(GHC_OS_MACOS) && \
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(__MAC_OS_X_VERSION_MIN_REQUIRED < __MAC_10_13) || (__IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_11_0) || \
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(__TV_OS_VERSION_MIN_REQUIRED < __TVOS_11_0) || (__WATCH_OS_VERSION_MIN_REQUIRED < __WATCHOS_4_0)
|
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#elif defined(GHC_OS_APPLE) && \
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(__MAC_OS_X_VERSION_MIN_REQUIRED && __MAC_OS_X_VERSION_MIN_REQUIRED < 101300 \
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|| __IPHONE_OS_VERSION_MIN_REQUIRED && __IPHONE_OS_VERSION_MIN_REQUIRED < 110000 \
|
||||
|| __TV_OS_VERSION_MIN_REQUIRED && __TVOS_VERSION_MIN_REQUIRED < 110000 \
|
||||
|| __WATCH_OS_VERSION_MIN_REQUIRED && __WATCHOS_VERSION_MIN_REQUIRED < 40000)
|
||||
struct ::stat fs;
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if (::stat(p.c_str(), &fs) == 0) {
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struct ::timeval tv[2];
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@ -25,7 +25,7 @@
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// SOFTWARE.
|
||||
//
|
||||
//---------------------------------------------------------------------------------------
|
||||
// fs_fwd.hpp - The forwarding header for the header/implementation seperated usage of
|
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// fs_fwd.hpp - The forwarding header for the header/implementation separated usage of
|
||||
// ghc::filesystem.
|
||||
// This file can be include at any place, where ghc::filesystem api is needed while
|
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// not bleeding implementation details (e.g. system includes) into the global namespace,
|
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@ -34,5 +34,5 @@
|
||||
#ifndef GHC_FILESYSTEM_FWD_H
|
||||
#define GHC_FILESYSTEM_FWD_H
|
||||
#define GHC_FILESYSTEM_FWD
|
||||
#include <ghc/filesystem.hpp>
|
||||
#include "filesystem.hpp"
|
||||
#endif // GHC_FILESYSTEM_FWD_H
|
||||
|
||||
@ -25,11 +25,11 @@
|
||||
// SOFTWARE.
|
||||
//
|
||||
//---------------------------------------------------------------------------------------
|
||||
// fs_impl.hpp - The implementation header for the header/implementation seperated usage of
|
||||
// fs_impl.hpp - The implementation header for the header/implementation separated usage of
|
||||
// ghc::filesystem.
|
||||
// This file can be used to hide the implementation of ghc::filesystem into a single cpp.
|
||||
// The cpp has to include this before including fs_fwd.hpp directly or via a different
|
||||
// header to work.
|
||||
//---------------------------------------------------------------------------------------
|
||||
#define GHC_FILESYSTEM_IMPLEMENTATION
|
||||
#include <ghc/filesystem.hpp>
|
||||
#include "filesystem.hpp"
|
||||
|
||||
@ -31,12 +31,32 @@
|
||||
//---------------------------------------------------------------------------------------
|
||||
#ifndef GHC_FILESYSTEM_STD_H
|
||||
#define GHC_FILESYSTEM_STD_H
|
||||
#if defined(__APPLE__)
|
||||
#include <Availability.h>
|
||||
#endif
|
||||
#if ((defined(_MSVC_LANG) && _MSVC_LANG >= 201703L) || (defined(__cplusplus) && __cplusplus >= 201703L)) && defined(__has_include)
|
||||
#if __has_include(<filesystem>) && (!defined(__MAC_OS_X_VERSION_MIN_REQUIRED) || __MAC_OS_X_VERSION_MIN_REQUIRED >= 101500)
|
||||
|
||||
#if _MSVC_LANG >= 201703L || __cplusplus >= 201703L && defined(__has_include)
|
||||
// ^ Supports MSVC prior to 15.7 without setting /Zc:__cplusplus to fix __cplusplus
|
||||
// _MSVC_LANG works regardless. But without the switch, the compiler always reported 199711L: https://blogs.msdn.microsoft.com/vcblog/2018/04/09/msvc-now-correctly-reports-__cplusplus/
|
||||
#if __has_include(<filesystem>) // Two stage __has_include needed for MSVC 2015 and per https://gcc.gnu.org/onlinedocs/cpp/_005f_005fhas_005finclude.html
|
||||
#define GHC_USE_STD_FS
|
||||
|
||||
// Old Apple OSs don't support std::filesystem, though the header is available at compile
|
||||
// time. In particular, std::filesystem is unavailable before macOS 10.15, iOS/tvOS 13.0,
|
||||
// and watchOS 6.0.
|
||||
#ifdef __APPLE__
|
||||
#include <Availability.h>
|
||||
// Note: This intentionally uses std::filesystem on any new Apple OS, like visionOS
|
||||
// released after std::filesystem, where std::filesystem is always available.
|
||||
// (All other __<platform>_VERSION_MIN_REQUIREDs will be undefined and thus 0.)
|
||||
#if __MAC_OS_X_VERSION_MIN_REQUIRED && __MAC_OS_X_VERSION_MIN_REQUIRED < 101500 \
|
||||
|| __IPHONE_OS_VERSION_MIN_REQUIRED && __IPHONE_OS_VERSION_MIN_REQUIRED < 130000 \
|
||||
|| __TV_OS_VERSION_MIN_REQUIRED && __TV_OS_VERSION_MIN_REQUIRED < 130000 \
|
||||
|| __WATCH_OS_VERSION_MAX_ALLOWED && __WATCH_OS_VERSION_MAX_ALLOWED < 60000
|
||||
#undef GHC_USE_STD_FS
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#ifdef GHC_USE_STD_FS
|
||||
#include <filesystem>
|
||||
namespace fs {
|
||||
using namespace std::filesystem;
|
||||
@ -44,11 +64,8 @@ using ifstream = std::ifstream;
|
||||
using ofstream = std::ofstream;
|
||||
using fstream = std::fstream;
|
||||
}
|
||||
#endif
|
||||
#endif
|
||||
#ifndef GHC_USE_STD_FS
|
||||
//#define GHC_WIN_DISABLE_WSTRING_STORAGE_TYPE
|
||||
#include <ghc/filesystem.hpp>
|
||||
#else
|
||||
#include "filesystem.hpp"
|
||||
namespace fs {
|
||||
using namespace ghc::filesystem;
|
||||
using ifstream = ghc::filesystem::ifstream;
|
||||
@ -56,5 +73,5 @@ using ofstream = ghc::filesystem::ofstream;
|
||||
using fstream = ghc::filesystem::fstream;
|
||||
}
|
||||
#endif
|
||||
#endif // GHC_FILESYSTEM_STD_H
|
||||
|
||||
#endif // GHC_FILESYSTEM_STD_H
|
||||
|
||||
@ -25,7 +25,7 @@
|
||||
// SOFTWARE.
|
||||
//
|
||||
//---------------------------------------------------------------------------------------
|
||||
// fs_std_fwd.hpp - The forwarding header for the header/implementation seperated usage of
|
||||
// fs_std_fwd.hpp - The forwarding header for the header/implementation separated usage of
|
||||
// ghc::filesystem that uses std::filesystem if it detects it.
|
||||
// This file can be include at any place, where fs::filesystem api is needed while
|
||||
// not bleeding implementation details (e.g. system includes) into the global namespace,
|
||||
@ -33,12 +33,32 @@
|
||||
//---------------------------------------------------------------------------------------
|
||||
#ifndef GHC_FILESYSTEM_STD_FWD_H
|
||||
#define GHC_FILESYSTEM_STD_FWD_H
|
||||
#if defined(__APPLE__)
|
||||
#include <Availability.h>
|
||||
#endif
|
||||
#if ((defined(_MSVC_LANG) && _MSVC_LANG >= 201703L) || (defined(__cplusplus) && __cplusplus >= 201703L)) && defined(__has_include)
|
||||
#if __has_include(<filesystem>) && (!defined(__MAC_OS_X_VERSION_MIN_REQUIRED) || __MAC_OS_X_VERSION_MIN_REQUIRED >= 101500)
|
||||
|
||||
#if _MSVC_LANG >= 201703L || __cplusplus >= 201703L && defined(__has_include)
|
||||
// ^ Supports MSVC prior to 15.7 without setting /Zc:__cplusplus to fix __cplusplus
|
||||
// _MSVC_LANG works regardless. But without the switch, the compiler always reported 199711L: https://blogs.msdn.microsoft.com/vcblog/2018/04/09/msvc-now-correctly-reports-__cplusplus/
|
||||
#if __has_include(<filesystem>) // Two stage __has_include needed for MSVC 2015 and per https://gcc.gnu.org/onlinedocs/cpp/_005f_005fhas_005finclude.html
|
||||
#define GHC_USE_STD_FS
|
||||
|
||||
// Old Apple OSs don't support std::filesystem, though the header is available at compile
|
||||
// time. In particular, std::filesystem is unavailable before macOS 10.15, iOS/tvOS 13.0,
|
||||
// and watchOS 6.0.
|
||||
#ifdef __APPLE__
|
||||
#include <Availability.h>
|
||||
// Note: This intentionally uses std::filesystem on any new Apple OS, like visionOS
|
||||
// released after std::filesystem, where std::filesystem is always available.
|
||||
// (All other __<platform>_VERSION_MIN_REQUIREDs will be undefined and thus 0.)
|
||||
#if __MAC_OS_X_VERSION_MIN_REQUIRED && __MAC_OS_X_VERSION_MIN_REQUIRED < 101500 \
|
||||
|| __IPHONE_OS_VERSION_MIN_REQUIRED && __IPHONE_OS_VERSION_MIN_REQUIRED < 130000 \
|
||||
|| __TV_OS_VERSION_MIN_REQUIRED && __TV_OS_VERSION_MIN_REQUIRED < 130000 \
|
||||
|| __WATCH_OS_VERSION_MAX_ALLOWED && __WATCH_OS_VERSION_MAX_ALLOWED < 60000
|
||||
#undef GHC_USE_STD_FS
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#ifdef GHC_USE_STD_FS
|
||||
#include <filesystem>
|
||||
namespace fs {
|
||||
using namespace std::filesystem;
|
||||
@ -46,12 +66,8 @@ using ifstream = std::ifstream;
|
||||
using ofstream = std::ofstream;
|
||||
using fstream = std::fstream;
|
||||
}
|
||||
#endif
|
||||
#endif
|
||||
#ifndef GHC_USE_STD_FS
|
||||
//#define GHC_WIN_DISABLE_WSTRING_STORAGE_TYPE
|
||||
#define GHC_FILESYSTEM_FWD
|
||||
#include <ghc/filesystem.hpp>
|
||||
#else
|
||||
#include "fs_fwd.hpp"
|
||||
namespace fs {
|
||||
using namespace ghc::filesystem;
|
||||
using ifstream = ghc::filesystem::ifstream;
|
||||
@ -59,5 +75,5 @@ using ofstream = ghc::filesystem::ofstream;
|
||||
using fstream = ghc::filesystem::fstream;
|
||||
}
|
||||
#endif
|
||||
#endif // GHC_FILESYSTEM_STD_FWD_H
|
||||
|
||||
#endif // GHC_FILESYSTEM_STD_FWD_H
|
||||
|
||||
@ -25,22 +25,36 @@
|
||||
// SOFTWARE.
|
||||
//
|
||||
//---------------------------------------------------------------------------------------
|
||||
// fs_std_impl.hpp - The implementation header for the header/implementation seperated usage of
|
||||
// fs_std_impl.hpp - The implementation header for the header/implementation separated usage of
|
||||
// ghc::filesystem that does nothing if std::filesystem is detected.
|
||||
// This file can be used to hide the implementation of ghc::filesystem into a single cpp.
|
||||
// The cpp has to include this before including fs_std_fwd.hpp directly or via a different
|
||||
// header to work.
|
||||
//---------------------------------------------------------------------------------------
|
||||
#if defined(__APPLE__)
|
||||
#include <Availability.h>
|
||||
#endif
|
||||
#if ((defined(_MSVC_LANG) && _MSVC_LANG >= 201703L) || (defined(__cplusplus) && __cplusplus >= 201703L)) && defined(__has_include)
|
||||
#if __has_include(<filesystem>) && (!defined(__MAC_OS_X_VERSION_MIN_REQUIRED) || __MAC_OS_X_VERSION_MIN_REQUIRED >= 101500)
|
||||
#if _MSVC_LANG >= 201703L || __cplusplus >= 201703L && defined(__has_include)
|
||||
// ^ Supports MSVC prior to 15.7 without setting /Zc:__cplusplus to fix __cplusplus
|
||||
// _MSVC_LANG works regardless. But without the switch, the compiler always reported 199711L: https://blogs.msdn.microsoft.com/vcblog/2018/04/09/msvc-now-correctly-reports-__cplusplus/
|
||||
#if __has_include(<filesystem>) // Two stage __has_include needed for MSVC 2015 and per https://gcc.gnu.org/onlinedocs/cpp/_005f_005fhas_005finclude.html
|
||||
#define GHC_USE_STD_FS
|
||||
|
||||
// Old Apple OSs don't support std::filesystem, though the header is available at compile
|
||||
// time. In particular, std::filesystem is unavailable before macOS 10.15, iOS/tvOS 13.0,
|
||||
// and watchOS 6.0.
|
||||
#ifdef __APPLE__
|
||||
#include <Availability.h>
|
||||
// Note: This intentionally uses std::filesystem on any new Apple OS, like visionOS
|
||||
// released after std::filesystem, where std::filesystem is always available.
|
||||
// (All other __<platform>_VERSION_MIN_REQUIREDs will be undefined and thus 0.)
|
||||
#if __MAC_OS_X_VERSION_MIN_REQUIRED && __MAC_OS_X_VERSION_MIN_REQUIRED < 101500 \
|
||||
|| __IPHONE_OS_VERSION_MIN_REQUIRED && __IPHONE_OS_VERSION_MIN_REQUIRED < 130000 \
|
||||
|| __TV_OS_VERSION_MIN_REQUIRED && __TV_OS_VERSION_MIN_REQUIRED < 130000 \
|
||||
|| __WATCH_OS_VERSION_MAX_ALLOWED && __WATCH_OS_VERSION_MAX_ALLOWED < 60000
|
||||
#undef GHC_USE_STD_FS
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#ifndef GHC_USE_STD_FS
|
||||
//#define GHC_WIN_DISABLE_WSTRING_STORAGE_TYPE
|
||||
#define GHC_FILESYSTEM_IMPLEMENTATION
|
||||
#include <ghc/filesystem.hpp>
|
||||
#include "fs_impl.hpp"
|
||||
#endif
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user