Implement -Wnested-externs.

[cparser] / warning.h

diff --git a/warning.h b/warning.h
index ee8654b..e36d630 100644 (file)
--- a/warning.h
+++ b/warning.h
@@ -37,8 +37,10 @@ typedef struct warning_t {
        bool cast_align:1;                    /**< Warn whenever a pointer is cast such that the required alignment of the target is increased */
        bool cast_qual:1;                     /**< Warn whenever a pointer is cast so as to remove a type qualifier from the target type */
        bool conversion:1;                    /**< Warn if a prototype causes a type conversion that is different from what would happen to the same argument in the absence of a prototype */
+#endif
        bool declaration_after_statement:1;   /**< Warn when a declaration is found after a statement in a block */
-       bool deprecated_declarations:1;       /**< Warn about uses of functions, variables and types marked as deprecated by using the 'deprecated' attribute */
+       bool deprecated_declarations:1;       /* TODO implement for types */ /**< Warn about uses of functions, variables and types marked as deprecated by using the 'deprecated' attribute */
+#if 0 // TODO
        bool div_by_zero:1;                   /**< Warn about compile-time integer division by zero */
 #endif
        bool empty_statement:1;               /**< Warn about empty statements, i.e. lone ';'  */
@@ -64,8 +66,8 @@ typedef struct warning_t {
 #endif
        bool missing_prototypes:1;            /**< Warn if a global function is defined without a previous prototype declaration */
        bool multichar:1;                     /**< Warn if a multicharacter constant ('FOOF') is used. */
-#if 0 // TODO
        bool nested_externs:1;                /**< Warn if an 'extern' declaration is encountered within a function */
+#if 0 // TODO
        bool packed:1;                        /**< Warn if a structure is given the packed attribute, but the packed attribute has no effect on the layout or size of the structure */
        bool padded:1;                        /**< Warn if padding is included in a structure, either to align an element of the structure or to align the whole structure */
        bool parentheses:1;                   /**< Warn if parentheses are omitted in certain contexts (assignment where truth value is expected, if-else-braces) */
@@ -91,9 +93,7 @@ typedef struct warning_t {
        bool uninitialized:1;                 /**< Warn if an automatic variable is used without being initialized or if a variable may be clobbered by a 'setjmp' call. */
 #endif
        bool unknown_pragmas:1;               /**< Warn when a #pragma directive is encountered which is not understood */
-#if 0 // TODO
        bool unreachable_code:1;              /**< Warn if the compiler detects that code will never be executed */
-#endif
        bool unused_function:1;               /**< Warn whenever a static function is declared but not defined or a non-inline static function is unused */
        bool unused_label:1;                  /**< Warn whenever a label is declared but not used */
        bool unused_parameter:1;              /**< Warn whenever a function parameter is unused aside from its declaration */