From 2d14ef6cc55b61d5e951d3edce864f0698b1b9a6 Mon Sep 17 00:00:00 2001
From: tmeissner <programming@goodcleanfun.de>
Date: Fri, 23 Oct 2015 23:49:09 +0200
Subject: [PATCH] Add remaining prog exercises of chapter 04

---
 c_primer_plus/chapter04/07.c | 19 +++++++++++++++++++
 c_primer_plus/chapter04/08.c | 23 +++++++++++++++++++++++
 2 files changed, 42 insertions(+)
 create mode 100644 c_primer_plus/chapter04/07.c
 create mode 100644 c_primer_plus/chapter04/08.c

diff --git a/c_primer_plus/chapter04/07.c b/c_primer_plus/chapter04/07.c
new file mode 100644
index 0000000..596de98
--- /dev/null
+++ b/c_primer_plus/chapter04/07.c
@@ -0,0 +1,19 @@
+#include <stdio.h>
+#include <float.h>
+
+
+
+int main (void) {
+
+
+  float f_var = 1.0 / 3.0;
+  double d_var = 1.0 / 3.0;
+
+  printf("float: %18.4f double: %18.4g\n", f_var, d_var);
+  printf("float: %18.12f double: %18.12g\n", f_var, d_var);
+  printf("float: %.16f double: %.16g\n", f_var, d_var);
+  printf("FLT_DIG: %16d DBL_DIG: %17d \n", FLT_DIG, DBL_DIG);
+
+  return 0;
+
+}
diff --git a/c_primer_plus/chapter04/08.c b/c_primer_plus/chapter04/08.c
new file mode 100644
index 0000000..4163e64
--- /dev/null
+++ b/c_primer_plus/chapter04/08.c
@@ -0,0 +1,23 @@
+#include <stdio.h>
+
+
+#define LITERS_PER_GALLON 3.786
+#define KM_PER_MILE 1.609
+
+
+int main (void) {
+
+  float miles;
+  float gallons;
+
+  printf("Miles traveled: ");
+  scanf("%f", &miles);
+  printf("gasoline gallons: ");
+  scanf("%f", &gallons);
+
+  printf("Miles per gallon: %.1f\n", miles / gallons);
+  printf("Liters per 100km: %.1f\n", (gallons * LITERS_PER_GALLON)/(miles * KM_PER_MILE));
+
+  return 0;
+
+}