/usr/include/colib/env.h is in libiulib-dev 0.4+is+0.3-3ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 | // -*- C++ -*-
// Copyright 2006 Deutsches Forschungszentrum fuer Kuenstliche Intelligenz
// or its licensors, as applicable.
// Copyright 1995-2005 Thomas M. Breuel.
//
// You may not use this file except under the terms of the accompanying license.
//
// Licensed 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.
//
// Project: iulib -- image understanding library
// File: env.h
// Purpose: getting dynamically bound parameters/variables
// Responsible: tmb
// Reviewer:
// Primary Repository:
// Web Sites: www.iupr.org, www.dfki.de
/// \file env.h
/// \brief Getting dynamically bound parameters/variables.
#ifndef h_iupr_env_
#define h_iupr_env_
#include <stdio.h>
#include <stdlib.h>
namespace colib {
// FIXME: should add code to...
// -- specify an environment variable prefix for each program: env_register_prefix(...)
// -- specify the set of options recognized by a program/library: env_register_option(...)
// -- warn about environment variables with the given prefix but not recognized
inline const char *getenv_(const char *name,const char *dflt) {
const char *result = getenv(name)?getenv(name):dflt;
return result;
}
class param_string {
private:
const char *value;
public:
param_string(const char *name,const char *dflt,const char *doc) {
value = getenv(name)?getenv(name):dflt;
int where = atoi(getenv_("verbose","0"));
switch(where) {
case 1: fprintf(stdout,"%s=%s #param %s\n",name,value,doc); break;
case 2: fprintf(stderr,"%s=%s #param %s\n",name,value,doc); break;
default: ;
}
}
operator const char*() {
return value;
}
};
class param_bool {
private:
bool value;
public:
param_bool(const char *name,bool dflt,const char *doc) {
value = getenv(name)?atoi(getenv(name)):dflt;
int where = atoi(getenv_("verbose","0"));
switch(where) {
case 1: fprintf(stdout,"%s=%d #param %s\n",name,value,doc); break;
case 2: fprintf(stderr,"%s=%d #param %s\n",name,value,doc); break;
default: ;
}
}
operator bool() {
return value;
}
};
class param_int {
private:
int value;
public:
param_int(const char *name,int dflt,const char *doc) {
value = getenv(name)?atoi(getenv(name)):dflt;
int where = atoi(getenv_("verbose","0"));
switch(where) {
case 1: fprintf(stdout,"%s=%d #param %s\n",name,value,doc); break;
case 2: fprintf(stderr,"%s=%d #param %s\n",name,value,doc); break;
default: ;
}
}
operator int() {
return value;
}
};
class param_float {
private:
float value;
public:
param_float(const char *name,float dflt,const char *doc) {
value = getenv(name)?atof(getenv(name)):dflt;
int where = atoi(getenv_("verbose","0"));
switch(where) {
case 1: fprintf(stdout,"%s=%f #param %s\n",name,value,doc); break;
case 2: fprintf(stderr,"%s=%f #param %s\n",name,value,doc); break;
default: ;
}
}
operator float() {
return value;
}
};
class param_double {
private:
double value;
public:
param_double(const char *name,double dflt,const char *doc) {
value = getenv(name)?atof(getenv(name)):dflt;
int where = atoi(getenv_("verbose","0"));
switch(where) {
case 1: fprintf(stdout,"%s=%f #param %s\n",name,value,doc); break;
case 2: fprintf(stderr,"%s=%f #param %s\n",name,value,doc); break;
default: ;
}
}
operator double() {
return value;
}
};
}
#endif
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