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Allow constraint tolerance to be adjusted with a compile-time define #2921

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Jul 7, 2023
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Allow constraint tolerance to be adjusted with a compile-time define #2921

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8 changes: 7 additions & 1 deletion stan/math/prim/err/constraint_tolerance.hpp
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Original file line number Diff line number Diff line change
@@ -1,15 +1,21 @@
#ifndef STAN_MATH_PRIM_ERR_CONSTRAINT_TOLERANCE_HPP
#define STAN_MATH_PRIM_ERR_CONSTRAINT_TOLERANCE_HPP

#ifndef STAN_MATH_CONSTRAINT_TOLERANCE
#define STAN_MATH_CONSTRAINT_TOLERANCE 1E-8
#endif

#include <stan/math/prim/meta.hpp>
namespace stan {
namespace math {

/**
* The tolerance for checking arithmetic bounds in rank and in
* simplexes. The default value is <code>1E-8</code>.
* This can changed by defining <code>STAN_MATH_CONSTRAINT_TOLERANCE</code>
* at compile time.
*/
const double CONSTRAINT_TOLERANCE = 1E-8;
const double CONSTRAINT_TOLERANCE = STAN_MATH_CONSTRAINT_TOLERANCE;

} // namespace math
} // namespace stan
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