1This is meant to be a general place to list things that should be done "someday" 2 3CXX Runtime Library Tasks 4========================= 5* Look into mirroring libsupc++'s typeinfo vtable layout when libsupc++/libstdc++ 6 is used as the runtime library. 7* Investigate and document interoperability between libc++ and libstdc++ on 8 linux. Do this for every supported c++ runtime library. 9 10Atomic Related Tasks 11==================== 12* future should use <atomic> for synchronization. 13 14Test Suite Tasks 15================ 16* Improve the quality and portability of the locale test data. 17* Convert failure tests to use Clang Verify. 18 19Filesystem Tasks 20================ 21* P0492r2 - Implement National body comments for Filesystem 22 * INCOMPLETE - US 25: has_filename() is equivalent to just !empty() 23 * INCOMPLETE - US 31: Everything is defined in terms of one implicit host system 24 * INCOMPLETE - US 32: Meaning of 27.10.2.1 unclear 25 * INCOMPLETE - US 33: Definition of canonical path problematic 26 * INCOMPLETE - US 34: Are there attributes of a file that are not an aspect of the file system? 27 * INCOMPLETE - US 35: What synchronization is required to avoid a file system race? 28 * INCOMPLETE - US 36: Symbolic links themselves are attached to a directory via (hard) links 29 * INCOMPLETE - US 37: The term “redundant current directory (dot) elements” is not defined 30 * INCOMPLETE - US 38: Duplicates §17.3.16 31 * INCOMPLETE - US 39: Remove note: Dot and dot-dot are not directories 32 * INCOMPLETE - US 40: Not all directories have a parent. 33 * INCOMPLETE - US 41: The term “parent directory” for a (non-directory) file is unusual 34 * INCOMPLETE - US 42: Pathname resolution does not always resolve a symlink 35 * INCOMPLETE - US 43: Concerns about encoded character types 36 * INCOMPLETE - US 44: Definition of path in terms of a string requires leaky abstraction 37 * INCOMPLETE - US 45: Generic format portability compromised by unspecified root-name 38 * INCOMPLETE - US 46: filename can be empty so productions for relative-path are redundant 39 * INCOMPLETE - US 47: “.” and “..” already match the name production 40 * INCOMPLETE - US 48: Multiple separators are often meaningful in a root-name 41 * INCOMPLETE - US 49: What does “method of conversion method” mean? 42 * INCOMPLETE - US 50: 27.10.8.1 ¶ 1.4 largely redundant with ¶ 1.3 43 * INCOMPLETE - US 51: Failing to add / when appending empty string prevents useful apps 44 * INCOMPLETE - US 52: remove_filename() postcondition is not by itself a definition 45 * INCOMPLETE - US 53: remove_filename()'s name does not correspond to its behavior 46 * INCOMPLETE - US 54: remove_filename() is broken 47 * INCOMPLETE - US 55: replace_extension()'s use of path as parameter is inappropriate 48 * INCOMPLETE - US 56: Remove replace_extension()'s conditional addition of period 49 * INCOMPLETE - US 57: On Windows, absolute paths will sort in among relative paths 50 * INCOMPLETE - US 58: parent_path() behavior for root paths is useless 51 * INCOMPLETE - US 59: filename() returning path for single path components is bizarre 52 * INCOMPLETE - US 60: path("/foo/").filename()==path(".") is surprising 53 * INCOMPLETE - US 61: Leading dots in filename() should not begin an extension 54 * INCOMPLETE - US 62: It is important that stem()+extension()==filename() 55 * INCOMPLETE - US 63: lexically_normal() inconsistently treats trailing "/" but not "/.." as directory 56 * INCOMPLETE - US 73, CA 2: root-name is effectively implementation defined 57 * INCOMPLETE - US 74, CA 3: The term “pathname” is ambiguous in some contexts 58 * INCOMPLETE - US 75, CA 4: Extra flag in path constructors is needed 59 * INCOMPLETE - US 76, CA 5: root-name definition is over-specified. 60 * INCOMPLETE - US 77, CA 6: operator/ and other appends not useful if arg has root-name 61 * INCOMPLETE - US 78, CA 7: Member absolute() in 27.10.4.1 is overspecified for non-POSIX-like O/S 62 * INCOMPLETE - US 79, CA 8: Some operation functions are overspecified for implementation-defined file types 63 * INCOMPLETE - US 185: Fold error_code and non-error_code signatures into one signature 64 * INCOMPLETE - FI 14: directory_entry comparisons are members 65 * INCOMPLETE - Late 36: permissions() error_code overload should be noexcept 66 * INCOMPLETE - Late 37: permissions() actions should be separate parameter 67 * INCOMPLETE - Late 42: resize_file() Postcondition missing argument 68 69Misc Tasks 70========== 71* Find all sequences of >2 underscores and eradicate them. 72* run clang-tidy on libc++ 73* Document the "conditionally-supported" bits of libc++ 74* Look at basic_string's move assignment operator, re LWG 2063 and POCMA 75* Put a static_assert in std::allocator to deny const/volatile types (LWG 2447) 76