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use char->number from common in day 5

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Daniel Borges
2021-12-11 20:19:34 +01:00
parent 98336be2d7
commit bdc9004df6
1 changed files with 1 additions and 4 deletions
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5
05-hydrothermal-venture/code.scm
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@@ -1,8 +1,5 @@
(import (srfi :43)) ; vector extensions (import (srfi :43)) ; vector extensions
(load "../common.scm")
; returns numbers 0 to 9 from ascii character
(define (char->number c)
(- (char->integer c) 48)) ; 48 is ASCII's number zero
; reads a numnber from input ; reads a numnber from input
; also consumes the next non-number character in the file! ; also consumes the next non-number character in the file!