StringNAndBlockStream/BlockStreamDriver.cpp at master · AmitSna/StringNAndBlockStream · GitHub

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/* BlockStreamDriver.cpp

Escribe y lee archivo de registros, y muestra los cursos de

primer año con cantidad de alumnos mayor a 25.

2015-11-08 - 2018-06-30

Esp. Ing. José María Sola

Profesor

UTN FRBA */

#include <iostream>

#include "BlockStream.h"

int main(){

struct Curso{

char especialidad;

int codigo;

int nivel;

int alumnos;

double promedio;

};

constexpr auto filename{"cursos"};

std::ofstream out{filename, std::ios::binary};

WriteBlock(out, Curso{'K', 1051, 1, 29, 7.8});

WriteBlock(out, Curso{'R', 4152, 4, 41, 6.6});

WriteBlock(out, Curso{'K', 2051, 1, 22, 6.7});

WriteBlock(out, Curso{'K', 2011, 1, 26, 7.9});

out.close();

std::ifstream in{filename, std::ios::binary};

for(Curso curso; ReadBlock(in, curso) ;)

if( curso.nivel == 1 and curso.alumnos > 25 )

std::cout

<< "Especialidad: " << curso.especialidad << ", "

<< " Código: " << curso.codigo << ", "

<< " Nivel: " << curso.nivel << ", "

<< " Alumnos: " << curso.alumnos << ", "

<< " Promedio: " << curso.promedio << '\n'

<< '\n';

in.close();

}