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-rw-r--r--src/algebra/strap/PI.lsp23
1 files changed, 10 insertions, 13 deletions
diff --git a/src/algebra/strap/PI.lsp b/src/algebra/strap/PI.lsp
index c6f9420d..109f6a2a 100644
--- a/src/algebra/strap/PI.lsp
+++ b/src/algebra/strap/PI.lsp
@@ -6,19 +6,16 @@
(DEFUN |PositiveInteger| ()
(DECLARE (SPECIAL |$ConstructorCache|))
- (PROG (#0=#:G1376)
- (RETURN
- (COND
- ((SETQ #0# (HGET |$ConstructorCache| '|PositiveInteger|))
- (|CDRwithIncrement| (CDAR #0#)))
- (T (UNWIND-PROTECT
- (PROG1 (CDDAR (HPUT |$ConstructorCache| '|PositiveInteger|
- (LIST (CONS NIL
- (CONS 1 (|PositiveInteger;|))))))
- (SETQ #0# T))
- (COND
- ((NOT #0#)
- (HREM |$ConstructorCache| '|PositiveInteger|)))))))))
+ (LET ((#0=#:G1376 (HGET |$ConstructorCache| '|PositiveInteger|)))
+ (COND
+ (#0# (|CDRwithIncrement| (CDAR #0#)))
+ (T (UNWIND-PROTECT
+ (PROG1 (CDDAR (HPUT |$ConstructorCache| '|PositiveInteger|
+ (LIST (CONS NIL
+ (CONS 1 (|PositiveInteger;|))))))
+ (SETQ #0# T))
+ (COND
+ ((NOT #0#) (HREM |$ConstructorCache| '|PositiveInteger|))))))))
(DEFUN |PositiveInteger;| ()
(DECLARE (SPECIAL |$ConstructorCache|))