diff options
1 files changed, 7 insertions, 11 deletions
| -rw-r--r-- | Sem. 02/task3_not_done.cpp | 18 |
diff --git a/Sem. 02/task3_not_done.cpp b/Sem. 02/task3_not_done.cpp index 481f989..0389268 100644 --- a/Sem. 02/task3_not_done.cpp +++ b/Sem. 02/task3_not_done.cpp @@ -33,13 +33,8 @@ struct StudentCollection size_t studentsCount; }; -size_t getLinesCount(const char* fileName) +size_t getLinesCount(ifstream& file) { - ifstream file(fileName); - - if (!file.is_open()) - return 0; - size_t count = 0; while (!file.eof()) @@ -48,8 +43,8 @@ size_t getLinesCount(const char* fileName) file.getline(buff, capacity); count++; } - - file.close(); + + file.seekg(0, ios::beg); //resets the stream's get position. return count; @@ -105,9 +100,6 @@ void printStudent(const StudentRecord& st) void initStudentCollection(StudentCollection& collection, const char* fileName) { - size_t linesCount = getLinesCount(fileName); - - size_t studentsCount = linesCount - 1; ifstream file(fileName); if (studentsCount == 0 || !file.is_open()) @@ -119,6 +111,10 @@ void initStudentCollection(StudentCollection& collection, const char* fileName) return; } + size_t linesCount = getLinesCount(fileName); + + size_t studentsCount = linesCount - 1; + collection.data = new StudentRecord[studentsCount]; collection.studentsCount = studentsCount; |