Fixed uninitialized value

tobiasjdcolvin · tobiasjdcolvin · commit 90d1dd6d60cc · 2022-07-16T21:20:02.000-07:00
Fixed the uninitialized value in chapter 1, exercise 9. If last_c was randomly assigned a space, a leading space would never be printed. The fix is to ensure that last_c is always initialized to a value that is not a space to prevent this situation.
diff --git a/chapter_1/exercise_1_09/copy_io.c b/chapter_1/exercise_1_09/copy_io.c
@@ -3,7 +3,7 @@
 int main(void)
 {
   char c;
-  char last_c;
+  char last_c = '\0';
   while ((c = getchar()) != EOF)
   {
     if (c != ' ' || last_c != ' ')

Original file line number	Diff line number	Diff line change
`@@ -3,7 +3,7 @@`
`3`	`3`	`int main(void)`
`4`	`4`	`{`
`5`	`5`	`char c;`
`6`		`- char last_c;`
	`6`	`+ char last_c = '\0';`
`7`	`7`	`while ((c = getchar()) != EOF)`
`8`	`8`	`{`
`9`	`9`	`if (c != ' ' \|\| last_c != ' ')`