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Replace pow with std::pow

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The C pow casts to double while std::pow has overloads that can be
optimized by the compiler.
Also replace pow(*, 1./3) by cbrt.
This commit is contained in:
Vincent Rabaud
2026-01-04 01:50:00 +01:00
parent 10589eb2c8
commit 5622958189
47 changed files with 131 additions and 140 deletions
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modules/imgproc/test/test_histograms.cpp
+3 -3
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@@ -142,7 +142,7 @@ void CV_BaseHistTest::get_hist_params( int /*test_case_idx*/ )
cdims = cvtest::randInt(rng) % max_cdims + 1;
hist_size = exp(cvtest::randReal(rng)*max_log_size*CV_LOG2);
max_dim_size = cvRound(pow(hist_size,1./cdims));
max_dim_size = cvRound(std::pow(hist_size,1./cdims));
total_size = 1;
uniform = cvtest::randInt(rng) % 2;
hist_type = cvtest::randInt(rng) % 2 ? CV_HIST_SPARSE : CV_HIST_ARRAY;
@@ -208,7 +208,7 @@ float** CV_BaseHistTest::get_hist_ranges( int /*test_case_idx*/ )
for( j = 0; j < 10; j++ )
{
q = 1. + (j+1)*0.1;
if( (pow(q,(double)n)-1)/(q-1.) >= _high-_low )
if( (std::pow(q,n)-1)/(q-1.) >= _high-_low )
break;
}
@@ -220,7 +220,7 @@ float** CV_BaseHistTest::get_hist_ranges( int /*test_case_idx*/ )
else
{
q = 1 + j*0.1;
delta = cvFloor((_high-_low)*(q-1)/(pow(q,(double)n) - 1));
delta = cvFloor((_high-_low)*(q-1)/(std::pow(q,n) - 1));
delta = MAX(delta, 1.);
}
val = _low;