Jason Turner e07cd88659 Add noexcept where appropriate
This modifies no logic, it simply adds the keyword `noexcept`

I believe this is 100% correct. It calls methods that are not
guaranteed to be `noexcept`, such as `operator[]` but have
no logically way of throwing.
2017-07-22 20:33:30 -06:00

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// This file is distributed under the BSD License.
// See "license.txt" for details.
// Copyright 2009-2012, Jonathan Turner (jonathan@emptycrate.com)
// Copyright 2009-2017, Jason Turner (jason@emptycrate.com)
// http://www.chaiscript.com
#ifndef CHAISCRIPT_UTILITY_FNV1A_HPP_
#define CHAISCRIPT_UTILITY_FNV1A_HPP_
#include <cstdint>
#include "../chaiscript_defines.hpp"
namespace chaiscript
{
namespace utility
{
static constexpr std::uint32_t fnv1a_32(const char *s, std::uint32_t h = 0x811c9dc5) noexcept {
#ifdef __GNUC__
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wsign-conversion"
#endif
#ifdef CHAISCRIPT_MSVC
#pragma warning(push)
#pragma warning(disable : 4307)
#endif
return (*s == 0) ? h : fnv1a_32(s+1, ((h ^ (*s)) * 0x01000193));
#ifdef CHAISCRIPT_MSVC
#pragma warning(pop)
#endif
#ifdef __GNUC__
#pragma GCC diagnostic pop
#endif
}
}
}
#endif