* net/loveruby/cflat/parser/Parser.jj: now NULL is not a reserved word.
* import/stddef.hb: define const NULL.
git-svn-id: file:///Users/aamine/c/gitwork/public/cbc/trunk@4231 1b9489fe-b721-0410-924e-b54b9192deb8
* net/loveruby/cflat/compiler/TypeChecker.java: int-ptr is invalid.
* net/loveruby/cflat/compiler/CodeGenerator.java: implement pointer arithmetic correctly (e.g. *(ptr+1) for various types work now).
* net/loveruby/cflat/ast/PrefixOpNode.java: inherit UnaryArithmeticOpNode.
* net/loveruby/cflat/ast/SuffixOpNode.java: ditto.
* net/loveruby/cflat/ast/UnaryArithmeticOpNode.java: new file.
* net/loveruby/cflat/ast/CastNode.java: is not assignable.
* net/loveruby/cflat/type/TypeTable.java: new method #pointerSize, #ptrDiffTypeRef.
* net/loveruby/cflat/type/ArrayType.java: fetch pointer size from a TypeTable.
* net/loveruby/cflat/type/ArrayType.java: we can cast any pointers to void*.
* net/loveruby/cflat/type/PointerType.java: ditto.
* net/loveruby/cflat/type/IntegerTypeRef.java (equals): check name equality by #equals, not ==.
* test: test pointer arithmetic.
* test: CastNode does not becomes LHS, do not check it.
* import/string.hb: add mem* functions.
git-svn-id: file:///Users/aamine/c/gitwork/public/cbc/trunk@3979 1b9489fe-b721-0410-924e-b54b9192deb8