e_mod, e_max, e_min, e_eq, e_gt, e_gte,
e_pow, e_mul, e_div, e_add,
e_last, e_st, e_while, e_floor, e_ceil, e_trunc,
+ e_sqrt, e_not,
} type;
double value; // is sign in other types
union {
case e_floor: return e->value * floor(eval_expr(p, e->param[0]));
case e_ceil : return e->value * ceil (eval_expr(p, e->param[0]));
case e_trunc: return e->value * trunc(eval_expr(p, e->param[0]));
+ case e_sqrt: return e->value * sqrt (eval_expr(p, e->param[0]));
+ case e_not: return e->value * eval_expr(p, e->param[0]) == 0;
case e_while: {
double d = NAN;
while (eval_expr(p, e->param[0]))
else if (strmatch(next, "floor" )) d->type = e_floor;
else if (strmatch(next, "ceil" )) d->type = e_ceil;
else if (strmatch(next, "trunc" )) d->type = e_trunc;
+ else if (strmatch(next, "sqrt" )) d->type = e_sqrt;
+ else if (strmatch(next, "not" )) d->type = e_not;
else {
for (i=0; p->func1_names && p->func1_names[i]; i++) {
if (strmatch(next, p->func1_names[i])) {
case e_floor:
case e_ceil:
case e_trunc:
+ case e_sqrt:
+ case e_not:
return verify_expr(e->param[0]);
default: return verify_expr(e->param[0]) && verify_expr(e->param[1]);
}
"trunc(-123.123)",
"ceil(123.123)",
"ceil(-123.123)",
+ "sqrt(1764)",
+ "isnan(sqrt(-1))",
+ "not(1)",
+ "not(NAN)",
+ "not(0)",
NULL
};