From 66f1fd2ad9f2a4e3172bd07f6d71bb1321b0dce0 Mon Sep 17 00:00:00 2001
From: Jay Berkenbilt <ejb@ql.org>
Date: Thu, 8 Sep 2022 17:34:22 -0400
Subject: Switch user-supplied functions in C API to return int

---
 include/qpdf/qpdflogger-c.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/qpdf/qpdflogger-c.h b/include/qpdf/qpdflogger-c.h
index 10ab5bb0..6bf456e7 100644
--- a/include/qpdf/qpdflogger-c.h
+++ b/include/qpdf/qpdflogger-c.h
@@ -59,7 +59,8 @@ extern "C" {
         qpdf_log_dest_custom = 4,
     };
 
-    typedef void (*qpdf_log_fn_t)(char const* data, size_t len, void* udata);
+    /* Function should return 0 on success. */
+    typedef int (*qpdf_log_fn_t)(char const* data, size_t len, void* udata);
 
     QPDF_DLL
     void qpdflogger_set_info(
-- 
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