lib: define macro NODISCARD

[notmuch] / lib / notmuch-private.h

diff --git a/lib/notmuch-private.h b/lib/notmuch-private.h
index 093c29b1bbc5384198b90c351046a6a3b19200e1..1c2290b24847d8a55f957e2049c8cf3da64f78f8 100644 (file)
--- a/lib/notmuch-private.h
+++ b/lib/notmuch-private.h
@@ -121,7 +121,7 @@ typedef enum {
  */
 #define NOTMUCH_MESSAGE_ID_MAX (200 - sizeof (NOTMUCH_METADATA_THREAD_ID_PREFIX))
 
-typedef enum _notmuch_private_status {
+typedef enum {
     /* First, copy all the public status values. */
     NOTMUCH_PRIVATE_STATUS_SUCCESS                     = NOTMUCH_STATUS_SUCCESS,
     NOTMUCH_PRIVATE_STATUS_OUT_OF_MEMORY               = NOTMUCH_STATUS_OUT_OF_MEMORY,
@@ -173,7 +173,7 @@ typedef enum _notmuch_private_status {
      (notmuch_status_t) private_status)
 
 /* Flags shared by various lookup functions. */
-typedef enum _notmuch_find_flags {
+typedef enum {
     /* Lookup without creating any documents.  This is the default
      * behavior. */
     NOTMUCH_FIND_LOOKUP = 0,
@@ -586,9 +586,6 @@ _notmuch_message_add_reply (notmuch_message_t *message,
 void
 _notmuch_message_remove_unprefixed_terms (notmuch_message_t *message);
 
-const char *
-_notmuch_message_get_thread_id_only (notmuch_message_t *message);
-
 size_t _notmuch_message_get_thread_depth (notmuch_message_t *message);
 
 void
@@ -711,9 +708,7 @@ _notmuch_thread_create (void *ctx,
 
 /* indexopts.c */
 
-struct _notmuch_indexopts {
-    _notmuch_crypto_t crypto;
-};
+struct _notmuch_indexopts;
 
 #define CONFIG_HEADER_PREFIX "index.header."
 
@@ -755,6 +750,12 @@ _notmuch_talloc_steal (const void *new_ctx, const T *ptr)
 #undef talloc_steal
 #define talloc_steal _notmuch_talloc_steal
 #endif
+
+#if __cplusplus >= 201703L || __cppcheck__
+#define NODISCARD [[nodiscard]]
+#else
+#define NODISCARD /**/
+#endif
 #endif
 
 #endif