From 4b18819e5f34358cab1bf1c1514d443421d7968c Mon Sep 17 00:00:00 2001
From: foswret <foswret@posteo.com>
Date: Fri, 12 Dec 2025 15:13:48 -0600
Subject: All months are now able to be generated correctly in one PDF.
 Therefore, all absolutely core functionality is done.

---
 src/date.c | 4 ++++
 1 file changed, 4 insertions(+)
 create mode 100644 src/date.c

(limited to 'src/date.c')

diff --git a/src/date.c b/src/date.c
new file mode 100644
index 0000000..48642dd
--- /dev/null
+++ b/src/date.c
@@ -0,0 +1,4 @@
+int isleap(int year)
+{
+    return (year % 4 == 0 && year % 100 != 0) || (year % 400 == 0);
+}
-- 
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