From 94d0033ed89bb5bfb6500051296892fb7cea6c29 Mon Sep 17 00:00:00 2001
From: Sebastiano Tronto <sebastiano@tronto.net>
Date: Mon, 25 Dec 2023 17:56:34 +0100
Subject: Small cleanup

---
 2023/03/3b.c | 16 +++++-----------
 1 file changed, 5 insertions(+), 11 deletions(-)

(limited to '2023/03/3b.c')

diff --git a/2023/03/3b.c b/2023/03/3b.c
index 27b5b7c..9bf4c27 100644
--- a/2023/03/3b.c
+++ b/2023/03/3b.c
@@ -1,22 +1,16 @@
-#include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
 #define N 1000
-
-bool isnum(char c) { return c >= '0' && c <= '9'; }
+#define ISNUM(c) (c >= '0' && c <= '9')
 
 int grab(char *buf) {
-	int x;
-
-	if (!isnum(*buf))
-		return 0;
-
-	while (isnum(*buf)) buf--;
+	if (!ISNUM(*buf)) return 0;
+	while (ISNUM(*buf)) buf--;
 	buf++;
-	x = atoi(buf);
-	while (isnum(*buf)) *buf++ = '.';
+	int x = atoi(buf);
+	while (ISNUM(*buf)) *buf++ = '.';
 
 	return x;
 }
-- 
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