update cm2

cm2-nombres-code/floatdouble.c

@@ -0,0 +1,15 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+int main()
+{
+	float a = 0.1;
+	float b = 0.2;
+	float c = 0.3;
+
+	/* double a = 0.1;
+	double b = 0.2;
+	double c = 0.3; */
+
+	if (a+b == c) {printf("égaux\n");} else {printf("différents\n");}
+}