diff options
Diffstat (limited to 'src/systemc/ext/dt/fx/scfx_string.hh')
| -rw-r--r-- | src/systemc/ext/dt/fx/scfx_string.hh | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/src/systemc/ext/dt/fx/scfx_string.hh b/src/systemc/ext/dt/fx/scfx_string.hh new file mode 100644 index 000000000..f1f973992 --- /dev/null +++ b/src/systemc/ext/dt/fx/scfx_string.hh @@ -0,0 +1,199 @@ +/***************************************************************************** + + Licensed to Accellera Systems Initiative Inc. (Accellera) under one or + more contributor license agreements. See the NOTICE file distributed + with this work for additional information regarding copyright ownership. + Accellera licenses this file to you under the Apache License, Version 2.0 + (the "License"); you may not use this file except in compliance with the + License. You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied. See the License for the specific language governing + permissions and limitations under the License. + + *****************************************************************************/ + +/***************************************************************************** + + scfx_string.h - + + Original Author: Robert Graulich, Synopsys, Inc. + Martin Janssen, Synopsys, Inc. + + *****************************************************************************/ + +/***************************************************************************** + + MODIFICATION LOG - modifiers, enter your name, affiliation, date and + changes you are making here. + + Name, Affiliation, Date: + Description of Modification: + + *****************************************************************************/ +// $Log: scfx_string.h,v $ +// Revision 1.1.1.1 2006/12/15 20:20:04 acg +// SystemC 2.3 +// +// Revision 1.2 2006/01/03 23:18:34 acg +// Changed copyright to include 2006. +// +// Revision 1.1.1.1 2005/12/19 23:16:43 acg +// First check in of SystemC 2.1 into its own archive. +// +// Revision 1.9 2005/09/15 23:02:03 acg +// Added std:: prefix to appropriate methods and types to get around +// issues with the Edison Front End. +// +// Revision 1.8 2005/06/07 17:27:02 acg +// Fixed bug in scfx_string::operator += where an array reference was used +// rather than the [] operator. This meant that the buffer may have been +// accessed beyond its allocated storage. +// + +#ifndef __SYSTEMC_EXT_DT_FX_SCFX_STRING_HH__ +#define __SYSTEMC_EXT_DT_FX_SCFX_STRING_HH__ + +#include <cstdio> + +namespace sc_dt +{ + +// classes defined in this module +class scfx_string; + + +// ---------------------------------------------------------------------------- +// CLASS : scfx_string +// +// Simple string class for internal use. +// ---------------------------------------------------------------------------- + +class scfx_string +{ + void resize(std::size_t); + + public: + scfx_string(); + + ~scfx_string(); + + int length() const; + + void clear(); + + char & operator [] (int); + + void append(int); + void discard(int); + void remove(int); + + void operator += (char); + void operator += (const char *); + + operator const char * (); + + private: + std::size_t m_len; + std::size_t m_alloc; + char *m_buffer; +}; + + +// IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII + +inline void +scfx_string::resize(std::size_t i) +{ + do { + m_alloc *= 2; + } while (i >= m_alloc); + + char *temp = new char[m_alloc]; + + for (int j = 0; j < (int) m_len; ++j) { + temp[j] = m_buffer[j]; + } + temp[m_len] = 0; + + delete [] m_buffer; + m_buffer = temp; +} + +inline scfx_string::scfx_string() : + m_len(0), m_alloc(BUFSIZ), m_buffer(new char[m_alloc]) +{ + m_buffer[m_len] = 0; +} + +inline scfx_string::~scfx_string() { delete [] m_buffer; } + +inline int scfx_string::length() const { return m_len; } + +inline void +scfx_string::clear() +{ + m_len = 0; + m_buffer[m_len] = 0; +} + +inline char & +scfx_string::operator [] (int i) +{ + if (i >= (int)m_alloc) { + resize(i); + } + return m_buffer[i]; +} + +inline void +scfx_string::append(int n) +{ + m_len += n; + m_buffer[m_len] = 0; +} + +inline void +scfx_string::discard(int n) +{ + m_len -= n; + m_buffer[m_len] = 0; +} + +inline void +scfx_string::remove(int i) +{ + for (int j = i + 1; j < (int)m_len; ++j) + m_buffer[j - 1] = m_buffer[j]; + --m_len; + m_buffer[m_len] = 0; +} + +inline void +scfx_string::operator += (char c) +{ + this->operator [] (m_len) = c; + m_len++; + this->operator [] (m_len) = 0; +} + +inline void +scfx_string::operator += (const char *s) +{ + while (*s) + (*this) += *s++; +} + +inline scfx_string::operator const char * () +{ + m_buffer[m_len] = 0; + return m_buffer; +} + +} // namespace sc_dt + +#endif // __SYSTEMC_EXT_DT_FX_SCFX_STRING_HH__ |