First commit

IUT/Info1/TD/Exercices/7.2_selon/calc.cpp

@@ -0,0 +1,21 @@
+#include <limits>
+#include "calc.h"
+
+float add(float a, float b) {
+    return a + b;
+}
+
+float sub(float a, float b) {
+    return a - b;
+}
+
+float mul(float a, float b) {
+    return a * b;
+}
+
+float div(float a, float b) {
+    if (b != 0) {
+        return a / b;
+    }
+    return std::numeric_limits<double>::infinity();
+}

IUT/Info1/TD/Exercices/7.2_selon/calc.h

@@ -0,0 +1,7 @@
+float add(float a, float b);
+
+float sub(float a, float b);
+
+float mul(float a, float b);
+
+float div(float a, float b);

IUT/Info1/TD/Exercices/7.2_selon/main.cpp

@@ -0,0 +1,38 @@
+#include <iostream>
+
+#include "calc.h"
+
+using namespace std;
+
+int main() {
+    float a, b;
+    float result;
+    char operation;
+
+    cout << "Saisir a" << endl;
+    cin >> a;
+    cout << "Saisir l'opération" << endl;
+    cin >> operation;
+    cout << "Saisir b" << endl;
+    cin >> b;
+
+
+    switch (operation) {
+        case '+' :
+            result = add(a, b);
+            break;
+        case '-':
+            result = sub(a, b);
+            break;
+        case '*':
+            result = mul(a, b);
+            break;
+        case '/':
+            result = div(a, b);
+            break;
+        default:
+            throw runtime_error("You did not provide a valid operation");
+    }
+
+    cout << "Le résultat est " << result << endl;
+}