From: Uwe Hermann <redacted>
Date: Mon, 12 Apr 2010 22:34:20 +0000 (+0200)
Subject: Add ARRAY_SIZE helper.
X-Git-Tag: libsigrok-0.1.0~564
X-Git-Url: https://sigrok.org/gitaction?a=commitdiff_plain;h=fdd20b52391b9d491b37fb7d3e157ea5db098062;p=libsigrok.git

Add ARRAY_SIZE helper.
---

diff --git a/hardware/zeroplus-logic-cube/zeroplus.c b/hardware/zeroplus-logic-cube/zeroplus.c
index 4a1e46fc..e5b05ac6 100644
--- a/hardware/zeroplus-logic-cube/zeroplus.c
+++ b/hardware/zeroplus-logic-cube/zeroplus.c
@@ -156,7 +156,7 @@ struct sigrok_device_instance *zp_open_device(int device_index)
 			if(des.idVendor == USB_VENDOR) {
 				if(libusb_get_bus_number(devlist[i]) == sdi->usb->bus &&
 						libusb_get_device_address(devlist[i]) == sdi->usb->address) {
-							for (j = 0; j < sizeof(zeroplus_models) / sizeof(zeroplus_models[0]); j++) {
+							for (j = 0; j < ARRAY_SIZE(zeroplus_models); j++) {
 								if (des.idProduct == zeroplus_models[j].pid) {
 									g_message("Found PID=%04X (%s)", des.idProduct, zeroplus_models[j].model_name);
 									num_channels = zeroplus_models[j].channels;
diff --git a/sigrok.h b/sigrok.h
index 1eedd8bc..4b6e2640 100644
--- a/sigrok.h
+++ b/sigrok.h
@@ -54,6 +54,10 @@
 #define MHZ(n) (n * 1000000)
 #define GHZ(n) (n * 1000000000)
 
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
+#endif
+
 /* Data types, used by hardware plugins for set_configuration() */
 enum {
 	T_UINT64,