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Fix for old compilers

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This commit is contained in:
Carles Fernandez 2019-09-06 18:49:22 +02:00
parent 589788d2e3
commit 4248edc4f3
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GPG Key ID: 4C583C52B0C3877D
1 changed files with 10 additions and 5 deletions
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15
src/algorithms/telemetry_decoder/libs/convolutional.h
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@ -42,7 +42,6 @@
#define GNSS_SDR_CONVOLUTIONAL_H_ #define GNSS_SDR_CONVOLUTIONAL_H_
#include <volk_gnsssdr/volk_gnsssdr.h> #include <volk_gnsssdr/volk_gnsssdr.h>
#include <algorithm>
#include <vector> #include <vector>
/* define constants used throughout the library */ /* define constants used throughout the library */
@ -248,11 +247,17 @@ inline void Viterbi(int output_u_int[],
/* normalize */ /* normalize */
volk_gnsssdr_32f_index_max_32u(&max_index, next_section.data(), states); volk_gnsssdr_32f_index_max_32u(&max_index, next_section.data(), states);
max_val = next_section[max_index]; max_val = next_section[max_index];
prev_section = next_section;
std::transform(prev_section.begin(), prev_section.end(), prev_section.begin(),
[&max_val](const auto& prev_ele) { return (prev_ele - max_val); });
std::fill(next_section.begin(), next_section.end(), -MAXLOG); // In modern C++ (not supported by old GCC versions):
// prev_section = next_section;
// std::transform(prev_section.begin(), prev_section.end(), prev_section.begin(),
// [&max_val](const auto& prev_ele) { return (prev_ele - max_val); });
// std::fill(next_section.begin(), next_section.end(), -MAXLOG);
for (state = 0; state < states; state++)
{
prev_section[state] = next_section[state] - max_val;
next_section[state] = -MAXLOG;
}
} }
/* trace-back operation */ /* trace-back operation */