From: equilet <2237372+equilet@users.noreply.github.com>
Date: Wed, 31 May 2023 16:56:29 +0000 (-0400)
Subject: adding external append to handle header - single function
X-Git-Tag: v0.1~33
X-Git-Url: https://git.dabkitsch.com/?a=commitdiff_plain;h=0782ed43198d24b13465f98efc47c98e736c0bcb;p=morphograph.git

adding external append to handle header - single function
---

diff --git a/source/ext_appendtohandle.h b/source/ext_appendtohandle.h
new file mode 100644
index 0000000..b386545
--- /dev/null
+++ b/source/ext_appendtohandle.h
@@ -0,0 +1,30 @@
+// ext_appendtohandle.h
+//
+// Created by Jeff Lubow on 5/31/23
+// code from Jeremy Bernstein (c74) 
+
+#ifndef ext_appendtohandle_h
+#define ext_appendtohandle_h
+
+t_max_err my_sysmem_appendtextptrtohand(char *text, t_handle h)
+{
+	t_ptr_size i, oldsize, size;
+	char fudge = 0;
+	t_max_err rv = -1;
+	char *dst;
+
+	if (text && h) {
+		size = strlen(text) + 1;	// ensure zero termination
+		oldsize = sysmem_handlesize(h);
+		if (oldsize && !(*h)[oldsize - 1])
+			fudge = 1;
+		if (!(rv = sysmem_resizehandle(h, oldsize + size - fudge))) {
+			dst = (*h) + oldsize - fudge;
+			for (i = 0; i < size; i++, dst++)
+				*dst = text[i];
+		}
+	}
+	return rv;
+}
+
+#endif /* ext_appendtohandle_h */