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62 lines
2.2 KiB
C++
62 lines
2.2 KiB
C++
/*
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Formatting library for C++ - std::ostream support
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Copyright (c) 2012 - 2016, Victor Zverovich
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "ostream.h"
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namespace fmt {
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namespace {
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// Write the content of w to os.
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void write(std::ostream &os, Writer &w) {
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const char *data = w.data();
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typedef internal::MakeUnsigned<std::streamsize>::Type UnsignedStreamSize;
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UnsignedStreamSize size = w.size();
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UnsignedStreamSize max_size =
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internal::to_unsigned((std::numeric_limits<std::streamsize>::max)());
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do {
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UnsignedStreamSize n = size <= max_size ? size : max_size;
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os.write(data, static_cast<std::streamsize>(n));
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data += n;
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size -= n;
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} while (size != 0);
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}
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}
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FMT_FUNC void print(std::ostream &os, CStringRef format_str, ArgList args) {
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MemoryWriter w;
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w.write(format_str, args);
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write(os, w);
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}
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FMT_FUNC int fprintf(std::ostream &os, CStringRef format, ArgList args) {
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MemoryWriter w;
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printf(w, format, args);
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write(os, w);
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return static_cast<int>(w.size());
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}
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} // namespace fmt
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