util.h

// -*- mode: c++; c-basic-offset:4 -*-

// This file is part of libdap, A C++ implementation of the OPeNDAP Data
// Access Protocol.

// Copyright (c) 2002,2003 OPeNDAP, Inc.
// Author: James Gallagher <jgallagher@opendap.org>
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
//
// You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.

// (c) COPYRIGHT URI/MIT 1994-1999
// Please read the full copyright statement in the file COPYRIGHT.
//
// Authors:
//      jhrg,jimg       James Gallagher (jgallagher@gso.uri.edu)

// declarations for utility functions
//
// jhrg 9/21/94

#ifndef _util_h
#define _util_h 1

#include <cstdio>
#include <cmath>
#include <vector>

#ifndef _basetype_h
#include "BaseType.h"
#endif

using std::iostream;

namespace libdap
{

class Array;

inline bool double_eq(double lhs, double rhs, double epsilon = 1.0e-5)
{
    return fabs(lhs - rhs) < epsilon;
}

string extract_string_argument(BaseType *arg) ;
double extract_double_value(BaseType *arg) ;
double *extract_double_array(Array *a) ;
void extract_double_array(Array *a, vector<double> &dest) ;
void set_array_using_double(Array *dest, double *src, int src_len) ;

bool is_host_big_endian();

string prune_spaces(const string &);
bool unique_names(vector<BaseType *> l, const string &var, const string &type, string &msg);
string systime();
const char *libdap_root();
extern "C" const char *libdap_version();
extern "C" const char *libdap_name();

#ifdef WIN32
void flush_stream(iostream ios, FILE *out);
#endif

void downcase(string &s);
bool is_quoted(const string &s);
string remove_quotes(const string &s);

Type get_type(const char *name);
string D2type_name(Type t);
string D4type_name(Type t);
string type_name(Type t);
bool is_simple_type(Type t);
bool is_vector_type(Type t);
bool is_constructor_type(Type t);
bool is_integer_type(Type t);

bool dir_exists(const string &dir);

// Jose Garcia
void append_long_to_string(long val, int base, string &str_val);
string long_to_string(long val, int base = 10);

// Jose Garcia
void append_double_to_string(const double &num, string &str);
string double_to_string(const double &num);

string path_to_filename(string path);
int glob( const char *c, const char *s );
time_t parse_time(const char * str, bool expand);
bool size_ok(unsigned int sz, unsigned int nelem);
bool pathname_ok(const string &path, bool strict = true);
string dap_version();
string open_temp_fstream(ofstream &f, const string &name_template, const string &suffix = "");

} // namespace libdap

#endif