source: Sophya/trunk/SophyaLib/BaseTools/mutyv.cc@ 1399

Last change on this file since 1399 was 1310, checked in by ansari, 25 years ago

Changement de codage du type ds MuTyV (en prevision d'introduction de
nouveaux types codes ds MuTyV + Modif ObjFIO<DVList> - Reza 9/11/2000
File size: 3.2 KB
Line 
1// Classe MuTyV : Variable multi-type numerique
2// R. Ansari 1997-2000
3// LAL (Orsay) / IN2P3-CNRS DAPNIA/SPP (Saclay) / CEA
4
5
6#include "mutyv.h"
7#include <stdio.h>
8
9#include <iostream.h>
10#include <string.h>
11
12/*!
13 \class SOPHYA::MuTyV
14 \ingroup SysTools
15 Simple utility class which can be used to hold values of type
16 string, integer (\b int_8) or float (\b r_8) as well as complex,
17 It provides also easy conversion methods between these types.
18
19 \code
20 // ------- Using MuTyV objects -------
21 MuTyV mvu; // MuTyV variable declaration
22 mvu = 60; // mvu contains the integer value 60
23 mvu = 66.6; // and now the double value 66.6
24 string ds = mvu; // ds contains the string "66.6"
25 MuTyV mvi(14); // New MuTyV variable containing integer value 14
26 r_4 x = mvi; // x has the value 14.0
27 MuTyV mvs("Bonjour !"); // mvs contains the string "Bonjour !"
28 string s = mvs; // s contains "Bonjour !"
29
30 \endcode
31*/
32
33
34static void mutyv_decodestr(const char * si, double& r, double& im);
35
36/* --Methode-- */
37MuTyV::MuTyV(MuTyV const & a)
38{
39 typ = a.typ; iv = a.iv; dv = a.dv; dv_im = a.dv_im;
40 if (typ == MTVString) strv = new string(*(a.strv));
41 else strv = NULL;
42}
43
44/* --Methode-- */
45MuTyV::~MuTyV()
46{
47 if (strv) delete strv;
48}
49
50/* --Methode-- */
51MuTyV::MuTyV(char const* s)
52{
53 typ = MTVString;
54 strv = new string(s);
55 mutyv_decodestr(s, dv, dv_im);
56 iv = (int_8)dv;
57}
58
59/* --Methode-- */
60MuTyV::MuTyV(string const& s)
61{
62 typ = MTVString;
63 strv = new string(s);
64 mutyv_decodestr(s.c_str(), dv, dv_im);
65 iv = (int_8)dv;
66}
67
68/* --Methode-- */
69MuTyV & MuTyV::operator= (MuTyV const & a)
70{
71 typ = a.typ; iv = a.iv; dv = a.dv; dv_im = a.dv_im;
72 if (typ == MTVString) {
73 if (strv) *strv = *(a.strv);
74 else strv = new string(*(a.strv));
75 }
76 return(*this);
77}
78
79/* --Methode-- */
80char * MuTyV::operator= (char* s)
81{
82 typ = MTVString;
83 if (strv) *strv = s;
84 else strv = new string(s);
85 mutyv_decodestr(s, dv, dv_im);
86 iv = (int_8)dv;
87 return(s);
88}
89
90/* --Methode-- */
91string & MuTyV::operator= (string& s)
92{
93 typ = MTVString;
94 if (strv) *strv = s;
95 else strv = new string(s);
96 mutyv_decodestr(s.c_str(), dv, dv_im);
97 iv = (int_8)dv;
98 return(s);
99}
100
101/* --Methode-- */
102MuTyV::operator string() const
103{
104 if (typ == MTVString) return(*strv);
105 else {
106 char buff[96];
107 if (typ == MTVInteger) sprintf(buff,"%ld", (long)iv);
108 else if (typ == MTVFloat) sprintf(buff,"%.20g", dv);
109 else if (typ == MTVComplex) sprintf(buff,"(%.20g , %.20g)", dv, dv_im);
110 else buff[0] = '\0';
111 return(string(buff));
112 }
113}
114
115
116static void mutyv_decodestr(const char * si, double& r, double& im)
117 // decodage d'une chaine contenant une ou deux valeurs
118{
119 r = im = 0.;
120 string s = si;
121 size_t l = s.length();
122 size_t p = s.find_first_not_of(" ()\t",0);
123 if (p >= l) return;
124 size_t q = s.find_first_of(" ()\t",p+1);
125
126
127 if (!isdigit(s[p]) && !(s[p] == '+') && !(s[p] == '-') )
128 return;
129 r = atof(s.substr(p,q-p).c_str());
130
131 p = s.find_first_not_of(" ()\t",q+1);
132 if (p >= l) return;
133 q = s.find_first_of(" ()\t",p+1);
134 if (!isdigit(s[p]) && !(s[p] == '+') && !(s[p] == '-') )
135 return;
136 im = atof(s.substr(p,q-p).c_str());
137}
138
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