> + uint32_t num_args, ...); > +bool > +_mesa_string_buffer_append_len(struct _mesa_string_buffer *str, > + char *c, uint32_t len); > + > +static inline bool > +_mesa_string_buffer_append_char(struct _mesa_string_buffer *str, char c) > +{ > + assert(str->capacity > 0 && ch != '\0'); ch -> c