Cube  Check-in [8386716c19]

inline void
strcat_s(char *d, const char *s)
{
	size_t n = strlen(d);
	strn0cpy(d + n, s, _MAXDEFSTR - n);
}

inline void
formatstring(char *d, const char *fmt, va_list v)
{
	_vsnprintf(d, _MAXDEFSTR, fmt, v);
	d[_MAXDEFSTR - 1] = 0;
}

struct sprintf_s_f {
	char *d;

	sprintf_s_f(char *str) : d(str) {};

	void
	operator()(const char *fmt, ...)
	{
		va_list v;
		va_start(v, fmt);
		_vsnprintf(d, _MAXDEFSTR, fmt, v);
		va_end(v);
		d[_MAXDEFSTR - 1] = 0;
	}
};

#define sprintf_s(d) sprintf_s_f((char *)d)
#define sprintf_sd(d) \
	string d;     \
	sprintf_s(d)
#define sprintf_sdlv(d, last, fmt)        \
	string d;                         \
	{                                 \
		va_list ap;               \
		va_start(ap, last);       \
		formatstring(d, fmt, ap); \
		va_end(ap);               \
	}
#define sprintf_sdv(d, fmt) sprintf_sdlv(d, fmt, fmt)

#define fast_f2nat(val) ((int)(val))

extern void endianswap(void *, int, int);

template <class T> struct vector {
	T *buf;
	int alen;