-(defalias 'subtract-time 'time-subtract)
-
-;; These autoloads do nothing in Emacs 25, where the functions are builtin.
-;;;###autoload(autoload 'time-add "time-date")
-;;;###autoload(autoload 'time-subtract "time-date")
-;;;###autoload(autoload 'time-less-p "time-date")
-
-(eval-and-compile
- (when (not (and (fboundp 'time-add) (subrp (symbol-function 'time-add))))
-
- (defun time-add (t1 t2)
- "Add two time values T1 and T2. One should represent a time difference."
- (with-decoded-time-value ((high low micro pico type t1)
- (high2 low2 micro2 pico2 type2 t2))
- (setq high (+ high high2)
- low (+ low low2)
- micro (+ micro micro2)
- pico (+ pico pico2)
- type (max type type2))
- (when (>= pico 1000000)
- (setq micro (1+ micro)
- pico (- pico 1000000)))
- (when (>= micro 1000000)
- (setq low (1+ low)
- micro (- micro 1000000)))
- (when (>= low 65536)
- (setq high (1+ high)
- low (- low 65536)))
- (encode-time-value high low micro pico type)))
-
- (defun time-subtract (t1 t2)
- "Subtract two time values, T1 minus T2.
-Return the difference in the format of a time value."
- (with-decoded-time-value ((high low micro pico type t1)
- (high2 low2 micro2 pico2 type2 t2))
- (setq high (- high high2)
- low (- low low2)
- micro (- micro micro2)
- pico (- pico pico2)
- type (max type type2))
- (when (< pico 0)
- (setq micro (1- micro)
- pico (+ pico 1000000)))
- (when (< micro 0)
- (setq low (1- low)
- micro (+ micro 1000000)))
- (when (< low 0)
- (setq high (1- high)
- low (+ low 65536)))
- (encode-time-value high low micro pico type)))
-
- (defun time-less-p (t1 t2)
- "Return non-nil if time value T1 is earlier than time value T2."
- (with-decoded-time-value ((high1 low1 micro1 pico1 _type1 t1)
- (high2 low2 micro2 pico2 _type2 t2))
- (or (< high1 high2)
- (and (= high1 high2)
- (or (< low1 low2)
- (and (= low1 low2)
- (or (< micro1 micro2)
- (and (= micro1 micro2)
- (< pico1 pico2)))))))))))