Add per-datatype iterators to rpmtd

- just uint32 and string iterators for now, those are the most common ones
- allows somewhat more convenient code constructs when type is known,
  eg no need to separately check for non-null inside loops

1 files changed, 20 insertions, 0 deletions

diff --git a/lib/rpmtd.c b/lib/rpmtd.c
index d1c49cf33..daac14542 100644
--- a/lib/rpmtd.c
+++ b/lib/rpmtd.c
@@ -96,6 +96,26 @@ int rpmtdNext(rpmtd td)
     return i;
 }
 
+uint32_t *rpmtdNextUint32(rpmtd td)
+{
+    assert(td != NULL);
+    uint32_t *res = NULL;
+    if (rpmtdNext(td) >= 0) {
+	res = rpmtdGetUint32(td);
+    }
+    return res;
+}
+
+const char *rpmtdNextString(rpmtd td)
+{
+    assert(td != NULL);
+    const char *res = NULL;
+    if (rpmtdNext(td) >= 0) {
+	res = rpmtdGetString(td);
+    }
+    return res;
+}
+
 char * rpmtdGetChar(rpmtd td)
 {
     char *res = NULL;