- 1 名前：デフォルトの名無しさん [2005/08/11(木) 11:18:15 ]
- 前ｽﾚ pc8.2ch.net/test/read.cgi/tech/1021364372/
- 735 名前：デフォルトの名無しさん [2008/02/17(日) 03:32:45 ]
- >>719 でけた。TRY〜END_TRYの中からreturn出来ないけど。
typedef struct ex_handler_rec_ ex_handler_rec_;
struct ex_handler_rec_ {
ex_handler_rec_ *volatile prev_;
jmp_buf jbuf_;
const char *volatile ex_type_;
void *volatile ex_data_;
};
ex_handler_rec_ *volatile current_handler_ = NULL;
#define EX_ABBREV(x) x
#define TRY { \
ex_handler_rec_ EX_ABBREV(ex_handler_); \
int EX_ABBREV(need_rethrow_) = 0; \
if (0) BREAK_TRY; /* mandate finally clause */ \
EX_ABBREV(ex_handler_).prev_ = current_handler_; \
current_handler_ = &EX_ABBREV(ex_handler_); \
if (setjmp(EX_ABBREV(ex_handler_).jbuf_) == 0) {
#define BREAK_TRY goto EX_ABBREV(break_entry_)
#define RETHROW goto EX_ABBREV(rethrow_entry_)
#define CATCH(extype) \
} else if (!extype || !strcmp(extype, EX_ABBREV(ex_handler_).ex_type_)) { \
void *EX_ABBREV(ex_data) = EX_ABBREV(ex_handler_).ex_data_;
#define CATCH_ALL \
} else if (1) { \
void *EX_ABBREV(ex_data) = EX_ABBREV(ex_handler_).ex_data_;
- 736 名前：デフォルトの名無しさん [2008/02/17(日) 03:33:37 ]
- #define FINALLY \
} else { \
if (0) goto EX_ABBREV(rethrow_entry_); /* supress warning */ \
EX_ABBREV(rethrow_entry_): \
EX_ABBREV(need_rethrow_) = 1; \
} \
EX_ABBREV(break_entry_):; \
if (current_handler_ == &EX_ABBREV(ex_handler_)) /* no exception */ \
current_handler_ = EX_ABBREV(ex_handler_).prev_; \
{
#define END_TRY } \
if (EX_ABBREV(need_rethrow_)) \
throw_exception(EX_ABBREV(ex_handler_).ex_type_, EX_ABBREV(ex_handler_).ex_data_); \
}
void throw_exception(const char *ex_type, void *ex_data) {
ex_handler_rec_ *handler = current_handler_;
current_handler_ = handler->prev_;
handler->ex_type_ = ex_type;
handler->ex_data_ = ex_data;
printf("throw_exception %s\n", ex_type);
longjmp(handler->jbuf_, 1);
}
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