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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/core/test/test_math.cpp
+4 -4
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@@ -146,7 +146,7 @@ void Core_PowTest::get_minmax_bounds( int /*i*/, int /*j*/, int type, Scalar& lo
if( power > 0 )
{
double mval = cvtest::getMaxVal(type);
double u1 = pow(mval,1./power)*2;
double u1 = std::pow(mval,1./power)*2;
u = MIN(u,u1);
}
@@ -322,7 +322,7 @@ void Core_PowTest::prepare_to_validation( int /*test_case_idx*/ )
for( j = 0; j < ncols; j++ )
{
double val = ((float*)a_data)[j];
val = pow( fabs(val), power );
val = std::pow( fabs(val), power );
((float*)b_data)[j] = (float)val;
}
else
@@ -340,7 +340,7 @@ void Core_PowTest::prepare_to_validation( int /*test_case_idx*/ )
for( j = 0; j < ncols; j++ )
{
double val = ((double*)a_data)[j];
val = pow( fabs(val), power );
val = std::pow( fabs(val), power );
((double*)b_data)[j] = (double)val;
}
else
@@ -2394,7 +2394,7 @@ void Core_SolvePolyTest::run( int )
for (int j = 0; j < n; ++j)
{
s += fabs(r[j].real()) + fabs(r[j].imag());
div += sqrt(pow(r[j].real() - ar[j].real(), 2) + pow(r[j].imag() - ar[j].imag(), 2));
div += sqrt(std::pow(r[j].real() - ar[j].real(), 2) + std::pow(r[j].imag() - ar[j].imag(), 2));
}
div /= s;
pass = pass && div < err_eps;