From: Luke Lau <luke_lau@icloud.com>
Date: Sun, 4 Aug 2019 18:09:40 +0000 (+0100)
Subject: Fix flat-map
X-Git-Url: http://git.lukelau.me/?p=scheme.git;a=commitdiff_plain;h=25ef5a684dec5eedfc4e34a12b00a04e2d6b2b1b

Fix flat-map
---

diff --git a/ast.scm b/ast.scm
index 23e7723..1a4afe2 100644
--- a/ast.scm
+++ b/ast.scm
@@ -120,7 +120,7 @@
       (append (range s (- n 1))
 	      (list (+ s (- n 1))))))
 
-(define (flat-map f . xs) (fold-left append '() (map f xs)))
+(define (flat-map f . xs) (fold-left append '() (apply map (cons f xs))))
 (define (repeat x n) (if (<= n 0) '()
 			 (cons x (repeat x (- n 1)))))