GtkCssUnit _gtk_css_number_value_get_unit (const GtkCssValue *value);
double _gtk_css_number_value_get (const GtkCssValue *number,
double one_hundred_percent);
-GtkCssValue * _gtk_css_number_value_compute (GtkCssValue *number,
- GtkStyleContext *context);
G_END_DECLS