mirror of
https://github.com/matrix-construct/construct
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97 lines
2.6 KiB
C++
97 lines
2.6 KiB
C++
// The Construct
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//
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// Copyright (C) The Construct Developers, Authors & Contributors
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// Copyright (C) 2016-2020 Jason Volk <jason@zemos.net>
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice is present in all copies. The
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// full license for this software is available in the LICENSE file.
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#pragma once
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#define HAVE_IRCD_SIMD_PRINT_H
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namespace ircd::simd
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{
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/// Print the contents of the vector in "register layout" which are
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/// little-endian hex integer preceded by '0x' with each lane being
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/// space-separated. The fmt argument is reserved to offer some additional
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/// variations on the output format.
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template<class T>
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string_view
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print_reg(const mutable_buffer &buf,
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const T,
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const uint &fmt = 0)
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noexcept;
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/// Print the contents of the vector in "memory layout" which are indice-
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/// ordered hex values for each byte space-separated by lane. The fmt
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/// argument is reserved to offer some additional variations on the output
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/// format.
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template<class T>
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string_view
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print_mem(const mutable_buffer &buf,
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const T,
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const uint &fmt = 0)
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noexcept;
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/// Print the contents of the vector as characters for each byte
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/// space-separated by lane. The fmt argument is reserved to offer some
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/// additional variations on the output format.
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template<class T>
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string_view
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print_chr(const mutable_buffer &buf,
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const T,
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const uint &fmt = 0)
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noexcept;
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/// Print the contents of the vector to stdout; developer convenience.
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/// One of the other functions in this suite must be selected by this
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/// template to generate the desired string.
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template<class T,
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class F>
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bool
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print(const T,
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F&& printer = print_mem<T>,
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const uint &fmt = 0,
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const bool &lf = true);
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}
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/// Developer convenience. Reference another print_*() in the template. All
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/// arguments are passed thru.
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template<class T,
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class F>
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inline bool
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ircd::simd::print(const T vec,
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F&& printer,
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const uint &fmt,
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const bool &lf)
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{
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thread_local char buf[1024];
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const string_view str
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{
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printer(buf, vec, fmt)
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};
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const auto term
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{
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std::min(str.size(), sizeof(buf) - 1)
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};
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assert(buf[term] == 0x0);
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buf[term] = lf? '\n': buf[term];
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const auto len
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{
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size(str) + lf
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};
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size_t wrote {0}, last {0}; do
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{
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last = ::fwrite(data(str) + wrote, 1, len - wrote, ::stdout);
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wrote += last;
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}
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while(wrote < len && last > 0); // ensure last!=0 or break for error.
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assert(wrote <= len);
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return wrote == len;
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}
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