Changeset 1060 in Sophya

Timestamp:

Jul 11, 2000, 1:00:11 PM (25 years ago)

Author:

ansari

Message:

ajout contournement pb ifstream::seekg() pour Linux ds tios.cc - Reza 11/7/2000

File:

• trunk/Eval/COS/tios.cc (modified) (5 diffs)

trunk/Eval/COS/tios.cc

@@ -6 +6 @@
 
 void tread(istream* s);
+void tread2(istream* s);
 void twrite(ostream* s);
 
@@ -11 +12 @@
 {
 if (narg < 2) {
-  cout << "Usage: tios r/w" << endl;
+  cout << "Usage: tios w/r/r2 \n" 
+       << "  w  : Write data file tios.cc \n" 
+       << "  r  : Read data file with seekg(ios::end)  -> Linux Pb \n"
+       << "  r2 : Read  data file with seekg(ios::beg) Linux OK (??) \n" << endl;
   exit(0);
   }
@@ -20 +24 @@
 // is = new ifstream("tios.dat", ios::in | ios::binary);
  is = new ifstream("tios.dat", ios::in );
- tread(is);
+ if ( arg[1][1] == '2') tread2(is);
+ else tread(is);
  delete is;
  }
@@ -65 +70 @@
   }
 
+cout << " ----- Check Output from here ------- " << endl;
 s->seekg(-(sizeof(int)+sizeof(float)+sizeof(double)), ios::end);
 pos = s->tellg();
@@ -84 +90 @@
 }
 
+void tread2(istream* s)
+{
+int i;
+int iv;
+float fv;
+double dv;
+long pos;
+for(i=0; i<7; i++) {
+  pos = s->tellg();
+  s->read((char *)(&iv), sizeof(int));
+  s->read((char *)(&fv), sizeof(float));
+  s->read((char *)(&dv), sizeof(double));
+  cout << "tread2 " << i << " IV= " << iv << " FV= " << fv << " DV= " << dv 
+       << " Pos= " << pos << endl;
+  }
 
+cout << " ----- Check Output from here ------- " << endl;
+s->seekg(0, ios::end);
+pos = s->tellg();
+cout << "Seek-tread2 s->seekg(0, ios::end); Pos = " << pos ;
+pos -= (sizeof(int)+sizeof(float)+sizeof(double));
+cout << " ---> Pos= " << pos << endl;
+s->seekg(pos, ios::beg);
+pos = s->tellg();
+s->read((char *)(&iv), sizeof(int));
+s->read((char *)(&fv), sizeof(float));
+s->read((char *)(&dv), sizeof(double));
+i = 9;
+cout << "Seek-tread2 " << i << " IV= " << iv << " FV= " << fv << " DV= " << dv 
+     << " Pos= " << pos << endl;
+
+
+s->seekg((sizeof(int)+sizeof(float)+sizeof(double)), ios::beg);
+for(i=1; i<3; i++) {
+  pos = s->tellg();
+  s->read((char *)(&iv), sizeof(int));
+  s->read((char *)(&fv), sizeof(float));
+  s->read((char *)(&dv), sizeof(double));
+  
+  cout << "Seek-tread2-2 " << i << " IV= " << iv << " FV= " << fv 
+       << " DV= " << dv << " Pos= " << pos << endl;
+ }
+}