From: Sven Verdoolaege <skimo@kotnet.org>
Date: Tue, 28 Jun 2011 21:29:20 +0000 (+0200)
Subject: add isl_vec_insert_zero_els
X-Git-Tag: isl-0.07~63
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=9f56bb6ae497a84716e53c1531b8c02d6b1a41d8;p=platform%2Fupstream%2Fisl.git

add isl_vec_insert_zero_els

Signed-off-by: Sven Verdoolaege <skimo@kotnet.org>
---

diff --git a/include/isl/vec.h b/include/isl/vec.h
index 2602601..e592838 100644
--- a/include/isl/vec.h
+++ b/include/isl/vec.h
@@ -62,6 +62,10 @@ __isl_give isl_vec *isl_vec_read_from_file(isl_ctx *ctx, FILE *input);
 
 __isl_give isl_vec *isl_vec_drop_els(__isl_take isl_vec *vec,
 	unsigned pos, unsigned n);
+__isl_give isl_vec *isl_vec_insert_els(__isl_take isl_vec *vec,
+	unsigned pos, unsigned n);
+__isl_give isl_vec *isl_vec_insert_zero_els(__isl_take isl_vec *vec,
+	unsigned pos, unsigned n);
 
 #if defined(__cplusplus)
 }
diff --git a/isl_vec.c b/isl_vec.c
index 693af8e..b0bd1a3 100644
--- a/isl_vec.c
+++ b/isl_vec.c
@@ -292,3 +292,44 @@ error:
 	isl_vec_free(vec);
 	return NULL;
 }
+
+__isl_give isl_vec *isl_vec_insert_els(__isl_take isl_vec *vec,
+	unsigned pos, unsigned n)
+{
+	isl_vec *ext = NULL;
+
+	if (n == 0)
+		return vec;
+	if (!vec)
+		return NULL;
+
+	if (pos > vec->size)
+		isl_die(vec->ctx, isl_error_invalid,
+			"position out of bounds", goto error);
+
+	ext =  isl_vec_alloc(vec->ctx, vec->size + n);
+	if (!ext)
+		goto error;
+
+	isl_seq_cpy(ext->el, vec->el, pos);
+	isl_seq_cpy(ext->el + pos + n, vec->el + pos, vec->size - pos);
+
+	isl_vec_free(vec);
+	return ext;
+error:
+	isl_vec_free(vec);
+	isl_vec_free(ext);
+	return NULL;
+}
+
+__isl_give isl_vec *isl_vec_insert_zero_els(__isl_take isl_vec *vec,
+	unsigned pos, unsigned n)
+{
+	vec = isl_vec_insert_els(vec, pos, n);
+	if (!vec)
+		return NULL;
+
+	isl_seq_clr(vec->el + pos, n);
+
+	return vec;
+}