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authorzlg <zlg@zlg.space>2013-02-13 20:48:44 -0600
committerzlg <zlg@zlg.space>2013-02-13 20:48:44 -0600
commit5018e06c580dd21c958ec1672c26a3448faf0c55 (patch)
treecebbb56dad0a6b821cad3712c7977f6f9b0086ab /ch1/1-17_over-80.c
parentFix 1-09's solution (diff)
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Add license file, reorganize project
Diffstat (limited to 'ch1/1-17_over-80.c')
-rw-r--r--ch1/1-17_over-80.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/ch1/1-17_over-80.c b/ch1/1-17_over-80.c
new file mode 100644
index 0000000..53f00ce
--- /dev/null
+++ b/ch1/1-17_over-80.c
@@ -0,0 +1,47 @@
+#include <stdio.h>
+
+#define MINLENGTH 80
+
+int main() {
+ // longline is used as a boolean that tells us if it's a line worth printing
+ int longline = 0;
+
+ // len is simply a character counter, while c is the character itself.
+ int len, c;
+ char buffer[MINLENGTH];
+
+ while ((c = getchar()) != EOF) {
+ buffer[len] = c;
+
+ /* When we meet the end of the line, we need to print the rest of the line,
+ but only if we're already in a long line. Otherwise, reset our state.
+ */
+ if (c == '\n') {
+
+ if (longline == 1 && len < MINLENGTH - 1) {
+ buffer[len + 1] = '\0';
+ printf("%-s", buffer);
+ }
+
+ len = 0;
+ longline = 0;
+ continue;
+ }
+
+ /* When the buffer has filled up, output its contents! */
+ if (len == MINLENGTH) {
+ buffer[len + 1] = '\0';
+ printf("%-s", buffer);
+ len = 0;
+ longline = 1;
+ continue;
+ }
+
+ /* If neither of the above cases are caught, increment our counter and fetch
+ more data.
+ */
+ ++len;
+ }
+
+ return 0;
+}