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--- c_language:overview [2021/09/21 10:53] – [IOCCC] utedass
+++ c_language:overview [2022/09/12 00:30] (current) – external edit 127.0.0.1
@@ Line 9: / Line 9: @@
   * [[https://gcc.gnu.org/onlinedocs/gcc/Statement-Exprs.html|Statements and Declarations in Expressions]]
   * What inline in combination with export and static actually does [[https://stackoverflow.com/questions/6312597/is-inline-without-static-or-extern-ever-useful-in-c99|SO1]], [[https://stackoverflow.com/questions/216510/what-does-extern-inline-do|SO2]], [[https://en.cppreference.com/w/c/language/inline|CPP reference]]
+  * [[http://www.catb.org/esr/structure-packing/]] -- The lost art of structure packing
 [[http://www.underhanded-c.org/|Underhanded C Contest]]
@@ Line 22: / Line 23: @@
 [[https://stackoverflow.com/questions/1476892/poster-with-the-8-phases-of-translation-in-the-c-language/1479972#1479972|stackoverflow]]
+<code>
+                       ANSI C translation phases
+                       =========================
+          +-------------------------------------------------+
+          | map physical characters to source character set |
+          |     replace line terminators with newlines      |
+          |           decode trigraph sequences             |
+          +-------------------------------------------------+
+                                   |
+                                   V
+               +---------------------------------------+
+               | join lines along trailing backslashes |
+               +---------------------------------------+
+                                   |
+                                   V
+     +-------------------------------------------------------------+
+     | decompose into preprocessing tokens and whitespace/comments |
+     |                      strip comments                         |
+     |                      retain newlines                        |
+     +-------------------------------------------------------------+
+                                   |
+                                   V
+          +------------------------------------------------+
+          | execute preprocessing directives/invoke macros |
+          |              process included files            |
+          +------------------------------------------------+
+                                   |
+                                   V
+   +----------------------------------------------------------------+
+   | decode escape sequences in character constants/string literals |
+   +----------------------------------------------------------------+
+                                   |
+                                   V
+                +--------------------------------------+
+                | concatenate adjacent string literals |
+                +--------------------------------------+
+                                   |
+                                   V
+              +------------------------------------------+
+              | convert preprocessing tokens to C tokens |
+              |       analyze and translate tokens       |
+              +------------------------------------------+
+                                   |
+                                   V
+                    +-----------------------------+
+                    | resolve external references |
+                    |        link libraries       |
+                    |      build program image    |
+                    +-----------------------------+
+</code>
 ====== Right-to-left rule ======
 [[https://stackoverflow.com/questions/8392228/complicated-right-to-left-rule-when-defining-a-variable|SO thread]]