C++ を学習するプロセスです。次のエラーで、VC++ でコードの一部をデバッグするのに行き詰まりました。
Debug Error
*path to filename.exe*
Invalid allocation size:429496723 bytes.
エラーは、デバッガーが次のブロックに到達したときに正確に発生します:
int main(){
vector <Student_info> students;
Student_info record;
string::size_type maxlen=0;// length of the longest name
//read and store all the students data.
//maxlen contains the length of the name of the longest student.
while (read(cin,record)){
// find the length of the longest name
max(maxlen,record.name.size());
//add the student record to the vector.
students.push_back(record);
}
//arrange the records alphabetically.
sort(students.begin(),students.end(),compare);// this may look weird but the fact that the names have to be compared is checked using the predicate.
//write out the names and grades.
for(vector<Student_info>::size_type i =0;i!=students.size();i++){
//padding to ensure that there is vertical alignment.
cout<<students[i].name<<string(maxlen+1-students[i].name.size(),' ');// debugger stops here!
//compute grade.
try{
double final_grade=grade(students[i]);
streamsize prec=cout.precision();
cout<<setprecision(3)<<final_grade<<setprecision(prec);
}
catch(domain_error e){
//catch error if hw vector is empty!
e.what();
}
cout<<endl;
}
return 0;
}