Import C++ Standard Template Library

You can now use the hardest fastest and most dangerous language there is
with Cosmopolitan. So far about 75% of LLVM libcxx has been added. A few
breaking changes needed to be made to help this go smoothly.

- Rename nothrow to dontthrow
- Rename nodiscard to dontdiscard
- Add some libm functions, e.g. lgamma, nan, etc.
- Change intmax_t from int128 to int64 like everything else
- Introduce %jjd formatting directive for int128_t
- Introduce strtoi128(), strtou128(), etc.
- Rename bsrmax() to bsr128()

Some of the templates that should be working currently are std::vector,
std::string, std::map, std::set, std::deque, etc.

tool/emacs/c.lang

@@ -102,7 +102,7 @@ Keywords={
 "decltype",
 "forceinline",
 "nocallersavedregisters",
-"nothrow",
+"dontthrow",
 "nooptimize",
 "optimizesize",
 "optimizespeed",
@@ -132,7 +132,7 @@ Keywords={
 "warnifused",
 "attributeallocsize",
 "attributeallocalign",
-"nodiscard",
+"dontdiscard",
 "nointerpose",
 "compatfn",
 "returnsnonnull",

tool/emacs/cosmo-c-keywords.el

@@ -46,7 +46,7 @@
            "decltype"
            "forceinline"
            "nocallersavedregisters"
-           "nothrow"
+           "dontthrow"
            "nooptimize"
            "optimizesize"
            "optimizespeed"
@@ -79,7 +79,7 @@
            "warnifused"
            "attributeallocsize"
            "attributeallocalign"
-           "nodiscard"
+           "dontdiscard"
            "nointerpose"
            "compatfn"
            "returnsnonnull"

tool/emacs/cosmo-stuff.el

@@ -132,6 +132,7 @@
                (or (locate-dominating-file (buffer-name) "Makefile")
                    (file-name-directory (buffer-name))))))
 (add-hook 'c-mode-common-hook 'stop-asking-questions-etags)
+(add-hook 'c++-mode-common-hook 'stop-asking-questions-etags)
 (setq tags-revert-without-query t)
 (setq kill-buffer-query-functions ;; disable kill buffer w/ process question
       (delq 'process-kill-buffer-query-function kill-buffer-query-functions))
@@ -268,6 +269,7 @@
   (add-hook 'ld-script-mode-hook 'cosmo-compile-hook)
   (add-hook 'dired-mode-hook 'cosmo-compile-hook)
   (add-hook 'c-mode-common-hook 'cosmo-compile-hook)
+  (add-hook 'c++-mode-common-hook 'cosmo-compile-hook)
   (add-hook 'fortran-mode-hook 'cosmo-compile-hook)
   (add-hook 'protobuf-mode-hook 'cosmo-compile-hook))
 
@@ -781,9 +783,14 @@
                       root mode (cosmo-file-name-sans-extensions name))))
         (when buddy
           (find-file buddy))))))
-(defun cosmo-lisp-is-the-worst-this-is-so-tiring ()
+
+(defun cosmo-lisp-is-the-best ()
   (define-key c-mode-base-map (kbd "C-c C-o") 'cosmo-show-optinfo))
-(add-hook 'c-mode-common-hook 'cosmo-lisp-is-the-worst-this-is-so-tiring)
+(add-hook 'c-mode-common-hook 'cosmo-lisp-is-the-best)
+
+(defun cosmo-lisp-is-the-best++ ()
+  (define-key c++-mode-base-map (kbd "C-c C-o") 'cosmo-show-optinfo))
+(add-hook 'c++-mode-common-hook 'cosmo-lisp-is-the-best++)
 
 
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
@@ -804,6 +811,7 @@
          (,cosmo-platform-constants-regex . font-lock-constant-face))))
 
 (add-hook 'c-mode-common-hook 'cosmo-c-keywords-hook)
+(add-hook 'c++-mode-common-hook 'cosmo-c-keywords-hook)
 (add-hook 'asm-mode-hook 'cosmo-asm-keywords-hook)
 
 

tool/emacs/key.py

@@ -345,7 +345,7 @@ cosmo_kws = frozenset([
   "memcpyesque",
   "nocallback",
   "nodebuginfo",
-  "nodiscard",
+  "dontdiscard",
   "dontinline",
   "noinstrument",
   "nointerpose",
@@ -353,8 +353,7 @@ cosmo_kws = frozenset([
   "noprune",
   "wontreturn",
   "nosideeffect",
-  "nothrow",
-  "nothrow",
+  "dontthrow",
   "null",
   "nullterminated",
   "paramsnonnull",
@@ -408,7 +407,7 @@ cosmo_kws = frozenset([
   "memcpyesque",
   "nocallback",
   "nodebuginfo",
-  "nodiscard",
+  "dontdiscard",
   "dontinline",
   "noinstrument",
   "nointerpose",
@@ -416,8 +415,7 @@ cosmo_kws = frozenset([
   "noprune",
   "wontreturn",
   "nosideeffect",
-  "nothrow",
-  "nothrow",
+  "dontthrow",
   "null",
   "nullterminated",
   "paramsnonnull",