1-16 solution code and comment style cleanup

Also of note is the length that the program reports includes the newline
character at the end. This has been clarified in a comment. The exercise
text does not specify whether to include newlines as part of the length,
so it was left alone.

Removed the contributor notice, since contributor acknowledgements are
centralized.

1 files changed, 7 insertions, 0 deletions

diff --git a/ch5/5-01_getint-fixed.c b/ch5/5-01_getint-fixed.c
index 8d53ba6..b013f20 100644
--- a/ch5/5-01_getint-fixed.c
+++ b/ch5/5-01_getint-fixed.c
@@ -23,6 +23,7 @@ int main() {
 	while (getint(bar) > 0) {
 		printf("%d\n", foo);
 	}
+	printf("Contents of buffer:%s\n", buf);
 	return 0;
 }
 
@@ -38,8 +39,14 @@ int getint(int *pn) {
 	sign = (c == '-') ? -1 : 1;
 	if (c == '+' || c == '-') {
 		c = getch();
+		if (!isdigit(c)) {
+			ungetch(c);
+			ungetch(sign == 1 ? '+' : '-');
+			return 0;
+		}
 	}
 	if (!isdigit(c)) {
+		ungetch(c);
 		return 0;
 	}
 	for (*pn = 0; isdigit(c); c = getch()) {