Add a "smart strdup" helper named copy_string()

If the string is non-NULL, copy it, otherwise return NULL.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/dive.h b/dive.h
index a13c4fd3b..8549296d7 100644
--- a/dive.h
+++ b/dive.h
@@ -29,6 +29,11 @@ static inline int same_string(const char *a, const char *b)
 	return !strcmp(a ?: "", b ?: "");
 }
 
+static inline char *copy_string(const char *s)
+{
+	return s ? strdup(s) : NULL;
+}
+
 #include <libxml/tree.h>
 #include <libxslt/transform.h>