fix some cparser warnings

[cparser] / cparser.1

diff --git a/cparser.1 b/cparser.1
index 18e73bc..3700bd9 100644 (file)
--- a/cparser.1
+++ b/cparser.1
@@ -119,7 +119,7 @@ In particular these are
 .Fl Wpointer-arith ,
 .Fl Wredundant-decls ,
 .Fl Wreturn-type ,
 .Fl Wpointer-arith ,
 .Fl Wredundant-decls ,
 .Fl Wreturn-type ,

-.Fl Wshadow ,
+.Fl Wshadow-local ,

 .Fl Wsign-compare ,
 .Fl Wstrict-prototypes ,
 .Fl Wswitch-enum ,
 .Fl Wsign-compare ,
 .Fl Wstrict-prototypes ,
 .Fl Wswitch-enum ,


@@ -147,9 +147,12 @@ Treat warnings as errors, i.e. do not continue after parsing when a warning is e
 .It Fl Werror-implicit-function-declaration
 Generate an error, when calling a function without a prior declaration.
 .It Fl Wextra
 .It Fl Werror-implicit-function-declaration
 Generate an error, when calling a function without a prior declaration.
 .It Fl Wextra

+(Alias
+.Fl W Ns )

 Activate some more warnings.
 In particular these are
 .Fl Wempty-statement ,
 Activate some more warnings.
 In particular these are
 .Fl Wempty-statement ,

+.Fl Wshadow ,

 .Fl Wunused-parameter ,
 .Fl Wunused-value .
 .It Fl Wfatal-errors
 .Fl Wunused-parameter ,
 .Fl Wunused-value .
 .It Fl Wfatal-errors


@@ -205,6 +208,10 @@ Warn if + or - is used as operand of << or >>, e.g. x\ +\ y\ <<\ z.
 Warn about redundant declarations, i.e. multiple declarations of the same object or static forward declarations which have no use before their definition.
 .It Fl Wshadow
 Warn when a new declaration shadows another declaration with the same name in an outer scope.
 Warn about redundant declarations, i.e. multiple declarations of the same object or static forward declarations which have no use before their definition.
 .It Fl Wshadow
 Warn when a new declaration shadows another declaration with the same name in an outer scope.

+.It Fl Wshadow-local
+Like
+.Fl Wshadow ,
+but only warn if the shadowed declaration is not global, e.g. a local variable shadows a parameter or another local variable.

 .It Fl Wunreachable-code
 Warn when the compiler determines that a statement (or in some cases a part thereof) will never be executed.
 .It Fl Wunused
 .It Fl Wunreachable-code
 Warn when the compiler determines that a statement (or in some cases a part thereof) will never be executed.
 .It Fl Wunused


@@ -275,6 +282,8 @@ and
 .Cm UTF-8
 (default).
 Case is ignored.
 .Cm UTF-8
 (default).
 Case is ignored.

+.It Fl f Ns Oo Cm no- Oc Ns Cm show-column
+Show the column number in diagnostic messages.

 .It Fl fsigned-char
 Define
 .Sq char
 .It Fl fsigned-char
 Define
 .Sq char