From 5aa5541e8f1bdbe286c2b866f888d450c6566b26 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C4=B0smail=20Enes=20K=C3=BC=C3=A7=C3=BCk?=
 <ismaileneskucuk@gmail.com>
Date: Tue, 26 May 2026 16:10:05 +0300
Subject: [PATCH] Refactor: Use O(1) dereferencing for emptiness checks instead
 of strlen

---
 src/commonmark.c | 4 ++--
 src/main.c       | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/commonmark.c b/src/commonmark.c
index ad805a630..72011d8e3 100644
--- a/src/commonmark.c
+++ b/src/commonmark.c
@@ -429,7 +429,7 @@ static int S_render_node(cmark_renderer *renderer, cmark_node *node,
         LIT("](");
         OUT(cmark_node_get_url(node), false, URL);
         title = cmark_node_get_title(node);
-        if (strlen(title) > 0) {
+        if (title[0]) {
           LIT(" \"");
           OUT(title, false, TITLE);
           LIT("\"");
@@ -446,7 +446,7 @@ static int S_render_node(cmark_renderer *renderer, cmark_node *node,
       LIT("](");
       OUT(cmark_node_get_url(node), false, URL);
       title = cmark_node_get_title(node);
-      if (strlen(title) > 0) {
+      if (title[0]) {
         OUT(" \"", allow_wrap, LITERAL);
         OUT(title, false, TITLE);
         LIT("\"");
diff --git a/src/main.c b/src/main.c
index 9a43cceda..3b52a97f0 100644
--- a/src/main.c
+++ b/src/main.c
@@ -126,7 +126,7 @@ int main(int argc, char *argv[]) {
       i += 1;
       if (i < argc) {
         width = (int)strtol(argv[i], &unparsed, 10);
-        if (unparsed && strlen(unparsed) > 0) {
+        if (unparsed && unparsed[0]) {
           fprintf(stderr, "failed parsing width '%s' at '%s'\n", argv[i],
                   unparsed);
           exit(1);