summaryrefslogtreecommitdiff
path: root/ch1/ctof.c
diff options
context:
space:
mode:
authorAdam Carpenter <gitlab@53hor.net>2019-07-09 16:00:48 -0400
committerAdam Carpenter <gitlab@53hor.net>2019-07-09 16:00:48 -0400
commit39c0cbcc70aff47e17107826aa76cb525c83b122 (patch)
treedf483af220a11aab49e0e3a76eea54f60efbd424 /ch1/ctof.c
parent583fc81152e120ec5873f8057f11a894bb8b0a91 (diff)
downloadlearning-c-39c0cbcc70aff47e17107826aa76cb525c83b122.tar.xz
learning-c-39c0cbcc70aff47e17107826aa76cb525c83b122.zip
ch2
Diffstat (limited to 'ch1/ctof.c')
-rw-r--r--ch1/ctof.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/ch1/ctof.c b/ch1/ctof.c
new file mode 100644
index 0000000..b95e20a
--- /dev/null
+++ b/ch1/ctof.c
@@ -0,0 +1,36 @@
+#include<stdio.h>
+
+#define LOWER 0;
+#define UPPER 300;
+#define STEP 20;
+
+float ctof(int c);
+
+/*
+ * Print Celcius-Fahrenheit table for celcius = 0, 20, ... 300.
+ */
+main() {
+ float fahr, celcius;
+ int lower, upper, step;
+
+ lower = LOWER; // lower limit of temperature table
+ upper = UPPER; // upper limit of temperature table
+ step = STEP; // step size
+
+ celcius = lower;
+
+ printf("%3s %6s\n", "C", "F");
+
+ while (celcius <= upper) {
+ fahr = ctof(celcius);
+ printf("%3.0f %6.1f\n", celcius, fahr);
+ celcius = celcius + step;
+ }
+}
+
+/*
+ * Convert Celcius to Fahrenheit
+ */
+float ctof(int celcius) {
+ return (9.0 / 5.0) * celcius + 32.0;
+}