diff --git a/docs/libcurl/opts/CURLINFO_TLS_SSL_PTR.md b/docs/libcurl/opts/CURLINFO_TLS_SSL_PTR.md
index aea8ec45e5..5dd44f48e6 100644
--- a/docs/libcurl/opts/CURLINFO_TLS_SSL_PTR.md
+++ b/docs/libcurl/opts/CURLINFO_TLS_SSL_PTR.md
@@ -142,7 +142,7 @@ static size_t wf(char *ptr, size_t size, size_t nmemb, void *stream)
 
 int main(int argc, char *argv[])
 {
-  CURLcode result;
+  CURLcode result = CURLE_OK;
   curl = curl_easy_init();
   if(curl) {
     curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
diff --git a/docs/libcurl/opts/CURLOPT_PROGRESSDATA.md b/docs/libcurl/opts/CURLOPT_PROGRESSDATA.md
index 6222995e61..621a246d1a 100644
--- a/docs/libcurl/opts/CURLOPT_PROGRESSDATA.md
+++ b/docs/libcurl/opts/CURLOPT_PROGRESSDATA.md
@@ -50,7 +50,7 @@ static int progress_callback(void *clientp,
                              double ulnow)
 {
   struct progress *memory = clientp;
-  printf("private: %p\n", memory->private);
+  printf("private: %p\n", (void *)memory->private);
 
   /* use the values */
 
diff --git a/docs/libcurl/opts/CURLOPT_PROGRESSFUNCTION.md b/docs/libcurl/opts/CURLOPT_PROGRESSFUNCTION.md
index d1d6ba3d37..82cf3585f7 100644
--- a/docs/libcurl/opts/CURLOPT_PROGRESSFUNCTION.md
+++ b/docs/libcurl/opts/CURLOPT_PROGRESSFUNCTION.md
@@ -96,7 +96,7 @@ static int progress_callback(void *clientp,
                              double ulnow)
 {
   struct progress *memory = clientp;
-  printf("private: %p\n", memory->private);
+  printf("private: %p\n", (void *)memory->private);
 
   /* use the values */
 
diff --git a/docs/libcurl/opts/CURLOPT_XFERINFODATA.md b/docs/libcurl/opts/CURLOPT_XFERINFODATA.md
index 5099e0a469..01e46918b8 100644
--- a/docs/libcurl/opts/CURLOPT_XFERINFODATA.md
+++ b/docs/libcurl/opts/CURLOPT_XFERINFODATA.md
@@ -53,7 +53,7 @@ static int progress_cb(void *clientp,
                        curl_off_t ulnow)
 {
   struct progress *memory = clientp;
-  printf("private ptr: %p\n", memory->private);
+  printf("private ptr: %p\n", (void *)memory->private);
   /* use the values */
 
   return 0; /* all is good */
diff --git a/docs/libcurl/opts/CURLOPT_XFERINFOFUNCTION.md b/docs/libcurl/opts/CURLOPT_XFERINFOFUNCTION.md
index 161be8fd4b..c9c6cd6e2a 100644
--- a/docs/libcurl/opts/CURLOPT_XFERINFOFUNCTION.md
+++ b/docs/libcurl/opts/CURLOPT_XFERINFOFUNCTION.md
@@ -92,7 +92,7 @@ static int xferinfo_callback(void *clientp,
                              curl_off_t ulnow)
 {
   struct progress *memory = clientp;
-  printf("my ptr: %p\n", memory->private);
+  printf("my ptr: %p\n", (void *)memory->private);
 
   /* use the values */