1 files changed, 72 insertions, 0 deletions
diff --git a/2023-2/L00/fun.cpp b/2023-2/L00/fun.cpp
new file mode 100644
index 0000000..e317db3
--- /dev/null
+++ b/2023-2/L00/fun.cpp
@@ -0,0 +1,72 @@
+#include <iostream>     // I/O basico (left, right, hex, oct, [no]uppercase, showbase)
+#include <iomanip>      // manipuladores (setw, setprecision, setfill)
+#include <iostream>
+#include <cstring>
+#include "fun.h"
+
+#define MAXLEN 100
+
+using namespace std;
+
+void leer_datos_escribir_reporte(std::istream& in, std::ostream& out) {
+    int sum_qty;
+    double sum_price;   // (price * qty)
+
+    char code[MAXLEN];
+    char book_name[MAXLEN];
+    char author_name[MAXLEN];
+    int qty;
+    double unit_price;
+    char c;     // dummy
+
+    sum_qty = 0;
+    sum_price = 0.0;
+    print_header(out);
+    int i;
+    for (i = 0; true; i++) {
+        // read
+        in.getline(code, MAXLEN, ',');
+        in.getline(book_name, MAXLEN, ',');
+        in.getline(author_name, MAXLEN, ',');
+        in >> qty;
+        in >> c;
+        in >> unit_price;
+        in.ignore(MAXLEN, '\n');
+        if (!in) {
+            break;
+        }
+        // process
+        to_upper_cstring_inplace(book_name);
+        sum_qty += qty;
+        sum_price += qty * unit_price;
+
+        // write
+        out << setw(2) << right << setfill('0') << i + 1 << ") ";
+        out << left << setfill(' ');
+        out << setw(8) << code;
+        out << setw(32) << uppercase << book_name;
+        out << setw(32) << author_name;
+        out << right << setprecision(2) << fixed;
+        out << setw(4) << qty;
+        out << setw(4) << ' ';
+        out << setw(8) << unit_price;
+        out << '\n';
+    }
+
+    out << "\n\n";
+    out << "Total cantidad libros: " << sum_qty << '\n';
+    out << "Total valor libros: " << sum_price << '\n';
+}
+
+void print_header(ostream& out) {
+    // 8    32      32      4       8
+    out <<    "No.  Codigo  Nombre                          Autor                           Cant.   Precio   \n";
+    out <<    "----------------------------------------------------------------------------------------------\n";
+}
+
+void to_upper_cstring_inplace(char * s) {
+    int i;
+    for (i = 0; s[i] != '\0'; i++) {
+        s[i] = toupper(s[i]);
+    }
+}
+\ No newline at end of file