petsc.h

// Copyright (C) 2004-2026 Johan Hoffman, Johan Jansson, Anders Logg,
// Garth N. Wells and Jack S. Hale
//
// This file is part of DOLFINx (https://www.fenicsproject.org)
//
// SPDX-License-Identifier:    LGPL-3.0-or-later
 
#pragma once
 
#ifdef HAS_PETSC
 
#include <format>
#include <petscsys.h>
#include <source_location>
#include <string>
#include <string_view>
 
namespace dolfinx::common
{
namespace petsc
{
void error(PetscErrorCode error_code, std::string_view petsc_function,
           std::source_location loc = std::source_location::current());

inline void check(PetscErrorCode ierr, std::string_view petsc_function,
                  std::source_location loc = std::source_location::current())
{
  if (ierr != 0)
    error(ierr, petsc_function, loc);
}

void set_option(std::string option);

template <typename T>
  requires requires(const T& value) { std::format("{}", value); }
void set_option(std::string option, const T& value)
{
  if (option[0] != '-')
    option = '-' + option;
 
  check(PetscOptionsSetValue(nullptr, option.c_str(),
                             std::format("{}", value).c_str()),
        "PetscOptionsSetValue");
}

void clear_option(std::string option);

void clear_options();
} // namespace petsc
} // namespace dolfinx::common
 
#endif