IVGCVSW-4487 Remove boost::filesystem

 * Replace filesystem::path
 * Replace filesystem::exists
 * Replace filesystem::is_directory
 * Replace filesystem::directory_iterator
 * Replace filesystem::filesystem_error exception
 * Replace filesystem::temp_directory_path
 * Replace filesystem::unique path
 * Replace filesystem::ofstream with std::ofstream
 * Replace filesystem::remove
 * Replace filesystem::is_regular_file
 * Replace boost::optional with armnn::Optional in touched files
 * Remove some superfluous includes
 * Update build guides, GlobalConfig.cmake and CMakeLists.txt
 * Remove redundant armnnUtils::Filesystem::Remove function.
 * Remove redundant armnnUtils::Filesystem::GetFileSize function.

Temporarily adding back Boost::filesystem to enable Boost::dll.

Signed-off-by: Francis Murtagh <francis.murtagh@arm.com>
Signed-off-by: Colm Donelan <Colm.Donelan@arm.com>

Change-Id: Ifa46d4a0097d2612ddacd8e9736c0b36e365fb11

1 files changed, 2 insertions, 3 deletions

diff --git a/src/armnnUtils/Filesystem.hpp b/src/armnnUtils/Filesystem.hpp
index 1b12502b40..869b0c1b5e 100644
--- a/src/armnnUtils/Filesystem.hpp
+++ b/src/armnnUtils/Filesystem.hpp
@@ -13,9 +13,8 @@ namespace armnnUtils
 namespace Filesystem
 {
 
-long long GetFileSize(const char* path);
-
-bool Remove(const char* path);
+/// Returns a path to a file in the system temporary folder. If the file existed it will be deleted.
+fs::path NamedTempFile(const char* fileName);
 
 }
 }