私のコードには、次のように、2 番目が構造体へのポインターであるマップを持つものを含め、複数の構造体があります。
struct course
{
college * coll;
int number;
int numprereqs;
map<int, course*> prereqs;
int numcoreqs;
map<int, course*> coreqs;
};
正常にコンパイルされますが、次のコード、またはマップ内の特定のエンティティにアクセスしている同様のコードに到達すると、プログラムがクラッシュします。
(*currentCol).courses[newC.number] = &newC;
ここに私のコード全体があります
ヘッダ：
#ifndef courseSchedulerH
#define courseSchedulerH
#include <iostream>
#include <sstream>
#include <fstream>
#include <map>
using namespace std;
char* inputFileName = "minimalInput.txt";
char* storageFileName = "data";
bool blahPrint = true;//if true will print out all the blahs to the terminal
bool debugnumerals = true;//Prints out line locations in the numeral area
struct college;
struct course
{
college * coll;
int number;
int numprereqs;
map<int, course*> prereqs;
int numcoreqs;
map<int, course*> coreqs;
};
struct section
{
int number;
map<int, course*> courses;
int coursesNeeded;
};
struct degree
{
college * col;
int number;
string name;
map<int, section*> sections;
};
struct college
{
int highestCourse;
string name;
map<int, course*> courses;
int degNumber;
stringstream degreesList;
map<string, degree*> degrees;
};
struct university
{
string name;//Will be needed later
int number;
stringstream collegesList;
map<string, college*> colleges;
};
struct user
{
string name;
int number;
map<int, course*> coursesTaken;
};
void baseFormat();
ifstream input;
string blah;//used for clearing fluff
bool error = false;
#endif
プログラム：
#include "courseScheduler.h"
int main()
{
cout << "Running!" << endl;
input.open(inputFileName);
int version;
input >> blah >> version;
input.get();
if(blah[0] != 'I')
{
cout << "No input number, stopping" << endl;
cin.get();
}
else
{
switch(version)
{
case 0:
cout << "Processing as base degree input" << endl;
baseFormat();
break;
default:
cout << "Unrecognized input number, stopping" << endl;
break;
}
cout << "Done" << endl;
cin.get();
}
}
void baseFormat()
{
bool deg = false;
bool sec = false;
bool col = false;
int sectionCount = 0;
int sectionNeed = 0;
university NMSU;
NMSU.number = 0;
degree* currentDeg;
college* currentCol;
section* currentSec;
university* currentUniv = &NMSU;
bool end = false;
while(!input.eof() && !error)
{
char c = input.peek();
cout << "Made it through, enter to continue" << endl;
cin.get();
switch(c)
{
case 'D'://Degree
{
if(end)
{
if(deg)
{
deg = false;
col = false;
end = false;
input >> blah;
if(blahPrint)cout << "blah is: " << blah << endl;
cout << "Ending degree: " << (*currentDeg).name << endl;
}
else
{
cout << "Ending a degree before initializing, stopping" << endl;
error = true;
}
}
else
{
if(col)
{
degree newDeg;
deg = true;
input >> blah >> newDeg.name;
if(blahPrint)cout << "blah is: " << blah << endl;
cout << "Starting degree: " << newDeg.name << endl;
(*currentCol).degreesList << newDeg.name << endl;
(*currentCol).degNumber++;
(*currentCol).degrees[newDeg.name] = &newDeg;
newDeg.col = currentCol;
newDeg.number = 0;
currentDeg = &newDeg;
input.get();
}
else
{
cout << "Degree with no college, stopping" << endl;
error = true;
}
}
}
break;
case 'C'://College
{
col = true;
college newCol;
input >> blah >> newCol.name;
if(blahPrint)cout << "blah is: " << blah << endl;
if(!(*currentUniv).colleges[newCol.name])
{
cout << "Starting college " << newCol.name << endl;
newCol.highestCourse = 0;
newCol.degNumber = 0;
(*currentUniv).collegesList << newCol.name << endl;
(*currentUniv).number++;
(*currentUniv).colleges[newCol.name] = &newCol;
currentCol = &newCol;
}
else
{
cout << "College of " << newCol.name << " already defined" << endl;
currentCol = (*currentUniv).colleges[newCol.name];
}
input.get();
}
break;
case 'S'://Section
{
if(end)
{
if(sec)
{
sec = false;
end = false;
input >> blah;
if(blahPrint)cout << "blah is: " << blah << endl;
cout << "ending section" << endl;
input.get();
}
else
{
cout << "Ending section before initializing, stopping" << endl;
error = true;
}
}
else
{
if(sec)
{
cout << "Section already specified, stopping" << endl;
error = true;
}
else
{
section newSec;
sec = true;
input >> blah;
if(blahPrint)cout << "blah is: " << blah << endl;
input >> newSec.coursesNeeded;
newSec.number = 0;
cout << "section with " << newSec.coursesNeeded << " needed courses" << endl;
(*currentDeg).sections[(*currentDeg).number++] = &newSec;
input.get();
}
}
}
break;
case 'E'://End
end = true;
input >> blah;
if(blahPrint)cout << "blah is: " << blah << endl;
cout << "end" << endl;
input.get();
break;
case 'O'://Other
input >> blah;
if(blahPrint)cout << "blah is: " << blah << endl;
cout << "other" << endl;
input.get();
break;
case '0'://Course Number
case '1'://Course Number
case '2'://Course Number
case '3'://Course Number
case '4'://Course Number
case '5'://Course Number
case '6'://Course Number
case '7'://Course Number
case '8'://Course Number
case '9'://Course Number
{
course newC;
input >> newC.number;
if(blahPrint)cout << "number is: " << newC.number << endl;
cout << "Numeral" << endl;
if((*currentCol).highestCourse < newC.number || !(*currentCol).courses[newC.number])
{
cout << "In that if.... should see this a lot..." << endl;
if(debugnumerals)cout << "0" << endl;
(*currentCol).courses[newC.number] = &newC;
if(debugnumerals)cout << "A" << endl;
newC.coll = &*currentCol;
if(debugnumerals)cout << "B" << endl;
if(newC.number>(*currentCol).highestCourse)
{
if(debugnumerals)cout << "C" << endl;
(*currentCol).highestCourse = newC.number;
}
}
else
{
cout << "Overlapping course of " << (*currentCol).name << " " << newC.number << endl;
cin.get();
newC = *((*currentCol).courses[newC.number]);
}
if(debugnumerals)cout << "D" << endl;
input.get();
if(debugnumerals)cout << "E" << endl;
if(sec)
{
if(debugnumerals)cout << "F" << endl;
(*currentSec).courses[(*currentSec).number++] = &newC;
}
else
{
if(debugnumerals)cout << "G" << endl;
section newS;
if(debugnumerals)cout << "H" << endl;
newS.number = 1;
if(debugnumerals)cout << "I" << endl;
newS.coursesNeeded = 1;
if(debugnumerals)cout << "J" << endl;
newS.courses[0] = &newC;
if(debugnumerals)cout << "K" << endl;
(*currentDeg).sections[(*currentDeg).number++] = &newS;
}
if(debugnumerals)cout << "L" << endl;
}
break;
default:
{
cout << "default" << endl;
input >> blah;
cout << "Unrecognized line start of " << blah << ", stopping" << endl;
}
break;
}
}
}
入力ファイル：
INPUT: 0
COL: C_S
DEG: COMPUTER_SCIENCE
172
271
272
273
278
370
371
372
448
471
473
474
SEC: 2
COL: C_S
470
472
475
476
478
480
481
482
483
484
485
486
491
492
END SEC
SEC: 1
COL: C_S
470
472
475
476
478
480
482
483
484
485
486
491
492
COL: MATH
291
377
430
454
480
COL: E_E
469
COL: BIOL
111
111L
211
211L
COL: CHEM
111
112
114
COL: GEOG
111
COL: GEOL
111
COL: HON
205
219
PHYS
211
211L
212
212L
215
215L
216
216L
END SEC
COL: HON
265
COL: ENGL
218
COL: MATH
280
191
192
SEC: 1
COL: MATH
331
332
377
392
430
431
454
455
END SEC
SEC: 1
COL: A_ST
311
COL: STAT
371
470
END SEC
SEC: 2
COL: ASTR
110
COL: BIOL
111
111L
211
211L
COL: CHEM
111
112
114
COL: GEOG
111
COL: GEOL
111
COL: HON
205
219
COL: PHYS
211
211L
212
212L
215
215L
216
216L
END SEC
END DEG
COL: ENGL
DEG: ENGINEERINGc_PHYSICS
111
OTHER: WRITTENCOMM
OTHER: ORALCOMM
COL: MATH
191
SEC: 1
COL: PHYS
213
213L
215
215L
END SEC
SEC: 1
COL: PHYS
214
214L
216
216L
END SEC
OTHER: AREAIV2-3
OTHER: AREAV2-3
OTHER: VWW1-2
COL: MATH
192
291
392
COL: CHEM
111
SEC: 1
COL: PHYS
451
COL: M_E
333
END SEC
OTHER: PHYS-ME2
COL: PHYS
217
217L
315
315L
395
454
455
461
462
475
COL: C_E
301
COL: M_E
102
159
236
237
240
261
326
328
338
341
426
427
449
END DEG