[libcamera-devel] [PATCH] libcamera: Replace ARRAY_SIZE() with std::size()
Laurent Pinchart
laurent.pinchart at ideasonboard.com
Sat Dec 12 00:23:19 CET 2020
C++17 has a std::size() function that returns the size of a C-style
array. Use it instead of the custom ARRAY_SIZE macro.
Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
---
include/libcamera/internal/utils.h | 2 --
src/ipa/raspberrypi/raspberrypi.cpp | 4 ++--
src/libcamera/camera.cpp | 8 ++++----
src/libcamera/log.cpp | 7 ++++---
src/libcamera/utils.cpp | 5 -----
src/libcamera/v4l2_videodevice.cpp | 6 +++---
test/ipc/unixsocket.cpp | 6 +++---
7 files changed, 16 insertions(+), 22 deletions(-)
diff --git a/include/libcamera/internal/utils.h b/include/libcamera/internal/utils.h
index ebb2c4038e19..f08134afb5ba 100644
--- a/include/libcamera/internal/utils.h
+++ b/include/libcamera/internal/utils.h
@@ -17,8 +17,6 @@
#include <sys/time.h>
#include <vector>
-#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
-
#ifndef __DOXYGEN__
/* uClibc and uClibc-ng don't provide O_TMPFILE */
diff --git a/src/ipa/raspberrypi/raspberrypi.cpp b/src/ipa/raspberrypi/raspberrypi.cpp
index 801400214c3a..a7439badb7dc 100644
--- a/src/ipa/raspberrypi/raspberrypi.cpp
+++ b/src/ipa/raspberrypi/raspberrypi.cpp
@@ -6,6 +6,7 @@
*/
#include <algorithm>
+#include <array>
#include <fcntl.h>
#include <math.h>
#include <stdint.h>
@@ -27,7 +28,6 @@
#include "libcamera/internal/buffer.h"
#include "libcamera/internal/camera_sensor.h"
#include "libcamera/internal/log.h"
-#include "libcamera/internal/utils.h"
#include <linux/bcm2835-isp.h>
@@ -1092,7 +1092,7 @@ void IPARPi::applyLS(const struct AlscStatus *lsStatus, ControlList &ctrls)
* Choose smallest cell size that won't exceed 63x48 cells.
*/
const int cellSizes[] = { 16, 32, 64, 128, 256 };
- unsigned int numCells = ARRAY_SIZE(cellSizes);
+ unsigned int numCells = std::size(cellSizes);
unsigned int i, w, h, cellSize;
for (i = 0; i < numCells; i++) {
cellSize = cellSizes[i];
diff --git a/src/libcamera/camera.cpp b/src/libcamera/camera.cpp
index 3579ba96b6ea..c1de1fee701a 100644
--- a/src/libcamera/camera.cpp
+++ b/src/libcamera/camera.cpp
@@ -7,6 +7,7 @@
#include <libcamera/camera.h>
+#include <array>
#include <atomic>
#include <iomanip>
@@ -17,7 +18,6 @@
#include "libcamera/internal/log.h"
#include "libcamera/internal/pipeline_handler.h"
#include "libcamera/internal/thread.h"
-#include "libcamera/internal/utils.h"
/**
* \file camera.h
@@ -393,7 +393,7 @@ int Camera::Private::isAccessAllowed(State state, bool allowDisconnected) const
if (currentState == state)
return 0;
- ASSERT(static_cast<unsigned int>(state) < ARRAY_SIZE(camera_state_names));
+ ASSERT(static_cast<unsigned int>(state) < std::size(camera_state_names));
LOG(Camera, Debug) << "Camera in " << camera_state_names[currentState]
<< " state trying operation requiring state "
@@ -412,8 +412,8 @@ int Camera::Private::isAccessAllowed(State low, State high,
if (currentState >= low && currentState <= high)
return 0;
- ASSERT(static_cast<unsigned int>(low) < ARRAY_SIZE(camera_state_names) &&
- static_cast<unsigned int>(high) < ARRAY_SIZE(camera_state_names));
+ ASSERT(static_cast<unsigned int>(low) < std::size(camera_state_names) &&
+ static_cast<unsigned int>(high) < std::size(camera_state_names));
LOG(Camera, Debug) << "Camera in " << camera_state_names[currentState]
<< " state trying operation requiring state between "
diff --git a/src/libcamera/log.cpp b/src/libcamera/log.cpp
index 180eb97ba664..45c7c2d24652 100644
--- a/src/libcamera/log.cpp
+++ b/src/libcamera/log.cpp
@@ -7,6 +7,7 @@
#include "libcamera/internal/log.h"
+#include <array>
#if HAVE_BACKTRACE
#include <execinfo.h>
#endif
@@ -91,7 +92,7 @@ static const char *log_severity_name(LogSeverity severity)
"FATAL",
};
- if (static_cast<unsigned int>(severity) < ARRAY_SIZE(names))
+ if (static_cast<unsigned int>(severity) < std::size(names))
return names[severity];
else
return "UNKWN";
@@ -406,7 +407,7 @@ void Logger::backtrace()
return;
void *buffer[32];
- int num_entries = ::backtrace(buffer, ARRAY_SIZE(buffer));
+ int num_entries = ::backtrace(buffer, std::size(buffer));
char **strings = backtrace_symbols(buffer, num_entries);
if (!strings)
return;
@@ -620,7 +621,7 @@ LogSeverity Logger::parseLogLevel(const std::string &level)
severity = LogInvalid;
} else {
severity = LogInvalid;
- for (unsigned int i = 0; i < ARRAY_SIZE(names); ++i) {
+ for (unsigned int i = 0; i < std::size(names); ++i) {
if (names[i] == level) {
severity = i;
break;
diff --git a/src/libcamera/utils.cpp b/src/libcamera/utils.cpp
index da85c9c24340..e90375ae115c 100644
--- a/src/libcamera/utils.cpp
+++ b/src/libcamera/utils.cpp
@@ -31,11 +31,6 @@ namespace libcamera {
namespace utils {
-/**
- * \def ARRAY_SIZE(array)
- * \brief Determine the number of elements in the static array.
- */
-
/**
* \brief Strip the directory prefix from the path
* \param[in] path The path to process
diff --git a/src/libcamera/v4l2_videodevice.cpp b/src/libcamera/v4l2_videodevice.cpp
index e2b582842a9b..baf683d6d985 100644
--- a/src/libcamera/v4l2_videodevice.cpp
+++ b/src/libcamera/v4l2_videodevice.cpp
@@ -7,6 +7,7 @@
#include "libcamera/internal/v4l2_videodevice.h"
+#include <array>
#include <fcntl.h>
#include <iomanip>
#include <sstream>
@@ -26,7 +27,6 @@
#include "libcamera/internal/log.h"
#include "libcamera/internal/media_device.h"
#include "libcamera/internal/media_object.h"
-#include "libcamera/internal/utils.h"
/**
* \file v4l2_videodevice.h
@@ -860,7 +860,7 @@ int V4L2VideoDevice::trySetFormatMultiplane(V4L2DeviceFormat *format, bool set)
pix->num_planes = format->planesCount;
pix->field = V4L2_FIELD_NONE;
- ASSERT(pix->num_planes <= ARRAY_SIZE(pix->plane_fmt));
+ ASSERT(pix->num_planes <= std::size(pix->plane_fmt));
for (unsigned int i = 0; i < pix->num_planes; ++i) {
pix->plane_fmt[i].bytesperline = format->planes[i].bpl;
@@ -1255,7 +1255,7 @@ std::unique_ptr<FrameBuffer> V4L2VideoDevice::createBuffer(unsigned int index)
buf.index = index;
buf.type = bufferType_;
buf.memory = V4L2_MEMORY_MMAP;
- buf.length = ARRAY_SIZE(v4l2Planes);
+ buf.length = std::size(v4l2Planes);
buf.m.planes = v4l2Planes;
int ret = ioctl(VIDIOC_QUERYBUF, &buf);
diff --git a/test/ipc/unixsocket.cpp b/test/ipc/unixsocket.cpp
index 19a1d7dd8a2d..80157b342795 100644
--- a/test/ipc/unixsocket.cpp
+++ b/test/ipc/unixsocket.cpp
@@ -6,6 +6,7 @@
*/
#include <algorithm>
+#include <array>
#include <fcntl.h>
#include <iostream>
#include <stdlib.h>
@@ -19,7 +20,6 @@
#include "libcamera/internal/ipc_unixsocket.h"
#include "libcamera/internal/thread.h"
#include "libcamera/internal/timer.h"
-#include "libcamera/internal/utils.h"
#include "test.h"
@@ -311,7 +311,7 @@ protected:
};
int fds[2];
- for (unsigned int i = 0; i < ARRAY_SIZE(strings); i++) {
+ for (unsigned int i = 0; i < std::size(strings); i++) {
unsigned int len = strlen(strings[i]);
fds[i] = open("/tmp", O_TMPFILE | O_RDWR,
@@ -333,7 +333,7 @@ protected:
if (ret)
return ret;
- for (unsigned int i = 0; i < ARRAY_SIZE(strings); i++) {
+ for (unsigned int i = 0; i < std::size(strings); i++) {
unsigned int len = strlen(strings[i]);
char buf[len];
--
Regards,
Laurent Pinchart
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