psparser.c - Pike-devel

8 Nov 2002


      [...]
    switch(cptr[3]) {
      case 0xC0 ... 0xDF:
[...]
I'm sorry to say, but this is not C.  §6.6.4.2:1 of C99 (the current C
standard says):
| The controlling expression of a switch statement shall have integer
| type, and shall not cause a block to be entered by a jump from outside
| the block to a statement that follows a case or default label in the
| block (or an enclosed block) if that block contains the declaration of
| a variably modified object or variably modified typedef name. The
                                                                ^^^
| expression of each case label shall be an integer constant
  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
| expression. No two of the case constant expressions in the same switch
  ^^^^^^^^^^
| statement shall have the same value after conversion. There may be at
| most one default label in a switch statement. (Any enclosed switch
| statement may have a default label or case constant expressions with
| values that duplicate case constant expressions in the enclosing
| switch statement.)
"0xC0 ... 0xDF" is not an integer constant expression, so this is not
legal C.