+double parse_float(const char **p_inout, unsigned f,
+ double min, double max, const char *what)
+{
+ const char *p;
+ char *q;
+ double x;
+ int err;
+
+ err = errno; errno = 0;
+ p = *p_inout;
+ x = strtod(p, &q);
+ if (errno || x < min || x > max || (!(f&PNF_JUNK) && *q))
+ bail("bad %s `%s'", what, p);
+ *p_inout = q; errno = err;
+ return (x);
+}
+
+long parse_int(const char **p_inout, unsigned f,
+ long min, long max, const char *what)
+{
+ const char *p;
+ char *q;
+ long x;
+ int err;
+
+ err = errno; errno = 0;
+ p = *p_inout;
+ x = strtoul(p, &q, 0);
+ if (errno || x < min || x > max || (!(f&PNF_JUNK) && *q))
+ bail("bad %s `%s'", what, p);
+ *p_inout = q; errno = err;
+ return (x);
+}
+