except.c

<<c语言接口与实现>>一书源码,此书无疑是一部经典的c语言书籍,只可惜翻译的质量很差

static char rcsid[] = "$Id: H:/drh/idioms/book/RCS/except.doc,v 1.10 1997/02/21 19:43:55 drh Exp $";
#include <stdlib.h>
#include <stdio.h>
#include "assert.h"
#include "except.h"
#define T Except_T
#ifdef WIN32
__declspec(thread)
#endif
Except_Frame *Except_stack = NULL;
void Except_raise(const T *e, const char *file,
	int line) {
	Except_Frame *p = Except_stack;
	assert(e);
	if (p == NULL) {
		fprintf(stderr, "Uncaught exception");
		if (e->reason)
			fprintf(stderr, " %s", e->reason);
		else
			fprintf(stderr, " at 0x%p", e);
		if (file && line > 0)
			fprintf(stderr, " raised at %s:%d\n", file, line);
		fprintf(stderr, "aborting...\n");
		fflush(stderr);
		abort();
	}
	p->exception = e;
	p->file = file;
	p->line = line;
	Except_stack = Except_stack->prev;
	longjmp(p->env, Except_raised);
}