fix floating point scanners

scanner.c

@@ -222,36 +222,33 @@ scan_result_t scan_u8(scanner_t *s) {
 	return scan_value(val);
 }
 
-bool scan_f64(scanner_t *s) {
+scan_result_t scan_f64(scanner_t *s) {
 	char const *save = s->cur;
 	char *end;
 	errno = 0;
 	double val = strtod(s->cur, &end);
 	if (end == s->cur) {
 		s->cur = save;
-		return false;
+		return scan_error(s, "not a f64");
 	}
 	if (errno == ERANGE) {
-		scanner_error(s, "float does not fit in f64 value");
-		return false;
+		return scan_error(s, "float does not fit in f64 value");
 	}
 	s->cur = end;
-	s->value.f64 = val;
-	return true;
+	return scan_value(.f64=val);
 }
 
-bool scan_f32(scanner_t *s) {
-	if (!scan_f64(s)) {
-		return false;
+scan_result_t scan_f32(scanner_t *s) {
+	scan_result_t result = scan_f64(s);
+	if (!result.ok) {
+		return result;
 	}
-	float val = (float)s->value.f64;
+	float val = (float)result.value.f64;
 	double back = (double)val;
-	if (back != s->value.f64) {
-		scanner_error(s, "float does not fit in f32 value");
-		return false;
+	if (back != result.value.f64) {
+		return scan_error(s, "float does not fit in f32 value");
 	}
-	s->value.f32 = val;
-	return true;
+	return scan_value(.f32=val);
 }
 
 bool scan_identifier(scanner_t *s) {