static void foo(int x)
{
        __context__(0);         // OK
        __context__(x, 0);      // OK
        __context__ (x, 1);     // OK

        __context__(x);         // KO: no const expr
        __context__(1,x);       // KO: no const expr

        __context__;            // KO: no expression at all
        __context__(;           // KO: no expression at all

        __context__ 0;          // KO: need parens
        __context__ x, 0;       // KO: need parens
        __context__(x, 0;       // KO: unmatched parens
        __context__ x, 0);      // KO: unmatched parens
        __context__(0;          // KO: unmatched parens
        __context__ 0);         // KO: unmatched parens

        __context__();          // KO: no expression at all
        __context__(,0);        // KO: no expression at all
        __context__(x,);        // KO: no expression at all
        __context__(,);         // KO: no expression at all
}

/*
 * check-name: context-stmt
 * check-command: sparse -Wno-context $file
 *
 * check-error-start
context-stmt.c:10:20: error: Expected ( after __context__ statement
context-stmt.c:10:20: error: got ;
context-stmt.c:11:21: error: expression expected after '('
context-stmt.c:11:21: error: got ;
context-stmt.c:11:21: error: Expected ) at end of __context__ statement
context-stmt.c:11:21: error: got ;
context-stmt.c:13:21: error: Expected ( after __context__ statement
context-stmt.c:13:21: error: got 0
context-stmt.c:14:21: error: Expected ( after __context__ statement
context-stmt.c:14:21: error: got x
context-stmt.c:15:25: error: Expected ) at end of __context__ statement
context-stmt.c:15:25: error: got ;
context-stmt.c:16:21: error: Expected ( after __context__ statement
context-stmt.c:16:21: error: got x
context-stmt.c:17:22: error: Expected ) at end of __context__ statement
context-stmt.c:17:22: error: got ;
context-stmt.c:18:21: error: Expected ( after __context__ statement
context-stmt.c:18:21: error: got 0
context-stmt.c:20:21: error: expression expected after '('
context-stmt.c:20:21: error: got )
context-stmt.c:21:21: error: expression expected after '('
context-stmt.c:21:21: error: got ,
context-stmt.c:22:23: error: expression expected after ','
context-stmt.c:22:23: error: got )
context-stmt.c:23:21: error: expression expected after '('
context-stmt.c:23:21: error: got ,
context-stmt.c:23:22: error: expression expected after ','
context-stmt.c:23:22: error: got )
context-stmt.c:7:21: error: bad constant expression
context-stmt.c:8:23: error: bad constant expression
 * check-error-end
 */