cca6459b4f
The cprintf functions don't know ahead of time what format characters are going to be used with what underlying data types, and so any type must be minimally usable with the default specialization of format_integer, format_char, format_float and format_string. All of those functions ultimately print their parameter with out << data except the one which prints stringstreams. That function accesses the buffer of the string stream with .str(), and then prints that instead. That should technically work out ok as long as stringstreams are only printed using %s, but there's no way to guarantee that ahead of time. To avoid that problem, and because gem5 doesn't ever actually use the ability to print stringstreams directly, this change removes that feature and modifies the corresponding part of the unit test. If we ever do want to print the contents of a string stream, it won't be difficult to add a .str() to it. Change-Id: Id902eaff042b96b374efe0183e5e3be9626e8c88 Reviewed-on: https://gem5-review.googlesource.com/7642 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Gabe Black <gabeblack@google.com>
343 lines
8.5 KiB
C++
343 lines
8.5 KiB
C++
/*
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* Copyright (c) 2003-2005 The Regents of The University of Michigan
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* All rights reserved.
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*
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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
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* 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
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Authors: Nathan Binkert
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*/
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#ifndef __BASE_CPRINTF_FORMATS_HH__
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#define __BASE_CPRINTF_FORMATS_HH__
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#include <cstring>
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#include <ostream>
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#include <sstream>
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namespace cp {
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struct Format
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{
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bool alternate_form;
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bool flush_left;
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bool print_sign;
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bool blank_space;
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bool fill_zero;
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bool uppercase;
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enum { dec, hex, oct } base;
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enum { none, string, integer, character, floating } format;
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enum { best, fixed, scientific } float_format;
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int precision;
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int width;
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bool get_precision;
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bool get_width;
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Format() { clear(); }
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void clear()
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{
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alternate_form = false;
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flush_left = false;
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print_sign = false;
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blank_space = false;
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fill_zero = false;
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uppercase = false;
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base = dec;
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format = none;
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float_format = best;
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precision = -1;
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width = 0;
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get_precision = false;
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get_width = false;
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}
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};
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template <typename T>
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inline void
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_format_char(std::ostream &out, const T &data, Format &fmt)
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{
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using namespace std;
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out << data;
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}
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template <typename T>
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inline void
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_format_integer(std::ostream &out, const T &data, Format &fmt)
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{
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using namespace std;
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ios::fmtflags flags(out.flags());
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switch (fmt.base) {
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case Format::hex:
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out.setf(std::ios::hex, std::ios::basefield);
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break;
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case Format::oct:
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out.setf(std::ios::oct, std::ios::basefield);
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break;
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case Format::dec:
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out.setf(std::ios::dec, std::ios::basefield);
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break;
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}
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if (fmt.alternate_form) {
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if (!fmt.fill_zero)
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out.setf(std::ios::showbase);
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else {
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switch (fmt.base) {
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case Format::hex:
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out << "0x";
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fmt.width -= 2;
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break;
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case Format::oct:
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out << "0";
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fmt.width -= 1;
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break;
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case Format::dec:
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break;
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}
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}
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}
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if (fmt.fill_zero)
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out.fill('0');
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if (fmt.width > 0)
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out.width(fmt.width);
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if (fmt.flush_left && !fmt.fill_zero)
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out.setf(std::ios::left);
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if (fmt.print_sign)
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out.setf(std::ios::showpos);
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if (fmt.uppercase)
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out.setf(std::ios::uppercase);
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out << data;
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out.flags(flags);
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}
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template <typename T>
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inline void
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_format_float(std::ostream &out, const T &data, Format &fmt)
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{
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using namespace std;
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ios::fmtflags flags(out.flags());
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if (fmt.fill_zero)
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out.fill('0');
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switch (fmt.float_format) {
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case Format::scientific:
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if (fmt.precision != -1) {
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if (fmt.width > 0)
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out.width(fmt.width);
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if (fmt.precision == 0)
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fmt.precision = 1;
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else
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out.setf(std::ios::scientific);
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out.precision(fmt.precision);
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} else
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if (fmt.width > 0)
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out.width(fmt.width);
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if (fmt.uppercase)
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out.setf(std::ios::uppercase);
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break;
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case Format::fixed:
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if (fmt.precision != -1) {
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if (fmt.width > 0)
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out.width(fmt.width);
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out.setf(std::ios::fixed);
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out.precision(fmt.precision);
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} else
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if (fmt.width > 0)
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out.width(fmt.width);
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break;
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default:
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if (fmt.precision != -1)
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out.precision(fmt.precision);
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if (fmt.width > 0)
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out.width(fmt.width);
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break;
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}
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out << data;
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out.flags(flags);
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}
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template <typename T>
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inline void
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_format_string(std::ostream &out, const T &data, Format &fmt)
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{
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using namespace std;
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#if defined(__GNUC__) && (__GNUC__ < 3) || 1
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if (fmt.width > 0) {
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std::stringstream foo;
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foo << data;
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int flen = foo.str().size();
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if (fmt.width > flen) {
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char *spaces = new char[fmt.width - flen + 1];
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memset(spaces, ' ', fmt.width - flen);
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spaces[fmt.width - flen] = 0;
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if (fmt.flush_left)
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out << foo.str() << spaces;
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else
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out << spaces << foo.str();
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delete [] spaces;
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} else
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out << data;
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} else
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out << data;
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#else
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if (fmt.width > 0)
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out.width(fmt.width);
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if (fmt.flush_left)
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out.setf(std::ios::left);
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out << data;
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#endif
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}
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/////////////////////////////////////////////////////////////////////////////
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//
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// The code below controls the actual usage of formats for various types
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//
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//
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// character formats
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//
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template <typename T>
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inline void
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format_char(std::ostream &out, const T &data, Format &fmt)
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{ out << "<bad arg type for char format>"; }
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inline void
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format_char(std::ostream &out, char data, Format &fmt)
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{ _format_char(out, data, fmt); }
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inline void
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format_char(std::ostream &out, unsigned char data, Format &fmt)
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{ _format_char(out, data, fmt); }
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inline void
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format_char(std::ostream &out, signed char data, Format &fmt)
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{ _format_char(out, data, fmt); }
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inline void
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format_char(std::ostream &out, short data, Format &fmt)
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{ _format_char(out, (char)data, fmt); }
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inline void
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format_char(std::ostream &out, unsigned short data, Format &fmt)
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{ _format_char(out, (char)data, fmt); }
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inline void
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format_char(std::ostream &out, int data, Format &fmt)
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{ _format_char(out, (char)data, fmt); }
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inline void
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format_char(std::ostream &out, unsigned int data, Format &fmt)
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{ _format_char(out, (char)data, fmt); }
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inline void
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format_char(std::ostream &out, long data, Format &fmt)
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{ _format_char(out, (char)data, fmt); }
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inline void
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format_char(std::ostream &out, unsigned long data, Format &fmt)
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{ _format_char(out, (char)data, fmt); }
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inline void
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format_char(std::ostream &out, long long data, Format &fmt)
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{ _format_char(out, (char)data, fmt); }
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inline void
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format_char(std::ostream &out, unsigned long long data, Format &fmt)
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{ _format_char(out, (char)data, fmt); }
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//
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// integer formats
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//
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template <typename T>
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inline void
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format_integer(std::ostream &out, const T &data, Format &fmt)
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{ _format_integer(out, data, fmt); }
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inline void
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format_integer(std::ostream &out, char data, Format &fmt)
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{ _format_integer(out, (int)data, fmt); }
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inline void
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format_integer(std::ostream &out, unsigned char data, Format &fmt)
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{ _format_integer(out, (int)data, fmt); }
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inline void
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format_integer(std::ostream &out, signed char data, Format &fmt)
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{ _format_integer(out, (int)data, fmt); }
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//
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// floating point formats
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//
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template <typename T>
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inline void
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format_float(std::ostream &out, const T &data, Format &fmt)
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{ out << "<bad arg type for float format>"; }
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inline void
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format_float(std::ostream &out, float data, Format &fmt)
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{ _format_float(out, data, fmt); }
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inline void
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format_float(std::ostream &out, double data, Format &fmt)
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{ _format_float(out, data, fmt); }
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//
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// string formats
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//
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template <typename T>
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inline void
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format_string(std::ostream &out, const T &data, Format &fmt)
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{ _format_string(out, data, fmt); }
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} // namespace cp
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#endif // __CPRINTF_FORMATS_HH__
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