Introduce xrealloc, use it.

2014-05-26  Janne Blomqvist  <jb@gcc.gnu.org>

	* libgfortran.h (xrealloc): New prototype.
	* runtime/memory.c (xrealloc): New function.
	* io/fbuf.c (fbuf_alloc): Use xrealloc.
	* io/list_read.c (push_char_default): Likewise.
	(push_char4): Likewise.

From-SVN: r210948

1 files changed, 14 insertions, 0 deletions

diff --git a/libgfortran/runtime/memory.c b/libgfortran/runtime/memory.c
index efeea86..b18b505 100644
--- a/libgfortran/runtime/memory.c
+++ b/libgfortran/runtime/memory.c
@@ -58,3 +58,17 @@ xcalloc (size_t nmemb, size_t size)
 
   return p;
 }
+
+
+void *
+xrealloc (void *ptr, size_t size)
+{
+  if (size == 0)
+    size = 1;
+
+  void *newp = realloc (ptr, size);
+  if (!newp)
+    os_error ("Memory allocation failure in xrealloc");
+
+  return newp;
+}