adding cs142 code

cs142/smcquay/go/lab02/binary/Makefile

@@ -0,0 +1,7 @@
+include $(GOROOT)/src/Make.inc
+
+TARG=binary
+GOFILES=\
+        binary.go
+
+include $(GOROOT)/src/Make.cmd

cs142/smcquay/go/lab02/binary/binary.go

@@ -0,0 +1,26 @@
+package main
+
+import (
+    "fmt"
+)
+
+func itob(i int) string {
+    var buf [64]byte
+    j := len(buf)
+    b := 2
+    for i > 0 {
+        j--
+        buf[j] = "0123456789abcdefghipqrstuvwxyz"[i%b]
+        i /= b
+    }
+
+    return string(buf[j:])
+}
+
+
+func main() {
+    var i int
+    fmt.Print("please enter a number: ")
+    fmt.Scan(&i)
+    fmt.Printf("%d as a binary: %s\n", i, itob(i))
+}

cs142/smcquay/go/lab02/seconds/Makefile

@@ -0,0 +1,7 @@
+include $(GOROOT)/src/Make.inc
+
+TARG=seconds
+GOFILES=\
+        seconds.go
+
+include $(GOROOT)/src/Make.cmd

cs142/smcquay/go/lab02/seconds/seconds.go

@@ -0,0 +1,36 @@
+package main
+
+import (
+    "fmt"
+    "math"
+)
+
+const SECONDS_PER_HOUR = 3600
+const SECONDS_PER_MINUTE = 60
+
+type time struct {
+    hours int
+    minutes int
+    seconds int
+}
+
+func (t time) String() string {
+    return fmt.Sprintf("%dH:%dM:%dS", t.hours, t.minutes, t.seconds);
+}
+
+func int2time(i int) time {
+    var r_secs int
+    hours := i / SECONDS_PER_HOUR
+    r_secs = i % SECONDS_PER_HOUR
+    mins := r_secs / SECONDS_PER_MINUTE
+    r_secs = r_secs % SECONDS_PER_MINUTE
+    return time{hours, mins, r_secs}
+}
+
+func main() {
+    var seconds int
+    fmt.Print("please enter total seconds: ")
+    fmt.Scan(&seconds)
+    fmt.Printf("%v\n", int2time(seconds))
+    fmt.Printf("%v\n", int2time(int(math.Sqrt(float64(seconds)))))
+}

cs142/smcquay/go/lab02/temperature/Makefile

@@ -0,0 +1,7 @@
+include $(GOROOT)/src/Make.inc
+
+TARG=temp
+GOFILES=\
+        temp.go
+
+include $(GOROOT)/src/Make.cmd

cs142/smcquay/go/lab02/temperature/temp.go

@@ -0,0 +1,21 @@
+package main
+
+import (
+    "fmt"
+)
+
+func f2c(temp_F float32) float32 {
+    return 5.0/9.0 * (temp_F-32);
+}
+
+func main() {
+    var temp_F float32
+    fmt.Print("please enter a temperature: ")
+    fmt.Scan(&temp_F)
+    temp_C := f2c(temp_F)
+
+    fmt.Printf("%0.4fF as:\n", temp_F)
+    fmt.Printf("an int: %dF\n", int(temp_F))
+    fmt.Printf("a celsius float32: %0.4fC\n", temp_C)
+    fmt.Printf("a celcius int:     %dC\n", int(temp_C))
+}