Initial commit

kapitel8/arsiffra.c

@@ -0,0 +1,18 @@
+#include <stdio.h>
+
+int arsiffra(char c)
+{
+    if ((c >= '0') && (c <= '9'))
+        return 1;
+    else
+        return 0;
+}
+
+int main(void)
+{
+    char chr1 = '9';
+    char chr2 = 'a';
+    printf("chr1: %d\n", arsiffra(chr1));
+    printf("chr2: %d\n", arsiffra(chr2));
+    return 0;
+}