fe4608386e
"nextpnr.h" is no longer the god header. Important improvements: - Functions in log.h can be used without including BaseCtx/Arch/Context. This means that log_X functions can be called without included "nextpnr.h" - NPNR_ASSERT can be used without including "nextpnr.h" by including "nextpnr_assertions.h". This allows NPNR_ASSERT to be used safely in any header file. - Types defined in "archdefs.h" are now available without including BaseCtx/Arch/Context. This means that utility classes that will be used inside of BaseCtx/Arch/Context can be defined safely in a self-contained header. Signed-off-by: Keith Rothman <537074+litghost@users.noreply.github.com>
46 lines
1.5 KiB
C++
46 lines
1.5 KiB
C++
/*
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* nextpnr -- Next Generation Place and Route
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*
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* Copyright (C) 2018 Clifford Wolf <clifford@symbioticeda.com>
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* Copyright (C) 2018 Serge Bazanski <q3k@symbioticeda.com>
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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 appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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*/
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#ifndef STR_RING_BUFFER_H
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#define STR_RING_BUFFER_H
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#include <array>
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#include <string>
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#include "nextpnr_namespaces.h"
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NEXTPNR_NAMESPACE_BEGIN
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// A ring buffer of strings, so we can return a simple const char * pointer for %s formatting - inspired by how logging
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// in Yosys works Let's just hope noone tries to log more than 100 things in one call....
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class StrRingBuffer
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{
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private:
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static const size_t N = 100;
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std::array<std::string, N> buffer;
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size_t index = 0;
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public:
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std::string &next();
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};
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NEXTPNR_NAMESPACE_END
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#endif /* STR_RING_BUFFER_H */
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