logicsegment.cpp: Constify a few variables.

[pulseview.git] / pv / data / logicsegment.cpp

diff --git a/pv/data/logicsegment.cpp b/pv/data/logicsegment.cpp
index 707f797d294accad64b5ee12f1ecd1551049344d..1bbd8d7cf0e7c40255ce13ae21d7211cafc550d6 100644 (file)
--- a/pv/data/logicsegment.cpp
+++ b/pv/data/logicsegment.cpp
@@ -25,6 +25,7 @@
 #include <cmath>
 #include <cstdlib>
 #include <cstring>
+#include <cstdint>
 
 #include "logic.hpp"
 #include "logicsegment.hpp"
@@ -152,8 +153,8 @@ void LogicSegment::append_payload(void *data, uint64_t data_size)
 
        lock_guard<recursive_mutex> lock(mutex_);
 
-       uint64_t prev_sample_count = sample_count_;
-       uint64_t sample_count = data_size / unit_size_;
+       const uint64_t prev_sample_count = sample_count_;
+       const uint64_t sample_count = data_size / unit_size_;
 
        append_samples(data, sample_count);
 
@@ -236,8 +237,8 @@ void LogicSegment::append_payload_to_mipmap()
        dest_ptr = (uint8_t*)m0.data + prev_length * unit_size_;
 
        // Iterate through the samples to populate the first level mipmap
-       uint64_t start_sample = prev_length * MipMapScaleFactor;
-       uint64_t end_sample = m0.length * MipMapScaleFactor;
+       const uint64_t start_sample = prev_length * MipMapScaleFactor;
+       const uint64_t end_sample = m0.length * MipMapScaleFactor;
 
        it = begin_raw_sample_iteration(start_sample);
        for (uint64_t i = start_sample; i < end_sample;) {
@@ -302,9 +303,8 @@ uint64_t LogicSegment::get_unpacked_sample(uint64_t index) const
        uint8_t data[8];
 
        get_raw_samples(index, 1, data);
-       uint64_t sample = unpack_sample(data);
 
-       return sample;
+       return unpack_sample(data);
 }
 
 void LogicSegment::get_subsampled_edges(
@@ -480,7 +480,7 @@ uint64_t LogicSegment::get_subsample(int level, uint64_t offset) const
 
 uint64_t LogicSegment::pow2_ceil(uint64_t x, unsigned int power)
 {
-       const uint64_t p = 1 << power;
+       const uint64_t p = UINT64_C(1) << power;
        return (x + p - 1) / p * p;
 }