- Added Swift solution to the "Divide Integer" task.

1 files changed, 82 insertions, 0 deletions

diff --git a/challenge-066/mohammad-anwar/swift/ch-1.swift b/challenge-066/mohammad-anwar/swift/ch-1.swift
new file mode 100644
index 0000000000..6436d29fcd
--- /dev/null
+++ b/challenge-066/mohammad-anwar/swift/ch-1.swift
@@ -0,0 +1,82 @@
+import Foundation
+
+/*
+Perl Weekly Challenge - 066
+
+Task #1: Divide Integers
+
+https://perlweeklychallenge.org/blog/perl-weekly-challenge-066/
+*/
+
+enum ParamError: Error {
+    case missingDividendAndDivisor
+    case missingDivisor
+    case invalidDividend
+    case invalidDivisor
+}
+
+do {
+    let paramCount:Int = Int(CommandLine.argc)
+
+    if paramCount <= 1 {
+        throw ParamError.missingDividendAndDivisor
+    }
+    else if paramCount <= 2 {
+        throw ParamError.missingDivisor
+    }
+
+    let dividend:Int = Int(CommandLine.arguments[1])!
+    let divisor:Int  = Int(CommandLine.arguments[2])!
+
+    var abs_dividend = abs(dividend)
+    let abs_divisor  = abs(divisor)
+
+    if abs_dividend < abs_divisor {
+        throw ParamError.invalidDividend
+    }
+
+    if divisor == 0 {
+        throw ParamError.invalidDivisor
+    }
+
+    var sign:String = "";
+    if dividend < 0 {
+        if divisor > 0 {
+            sign = "-"
+        }
+    }
+    else {
+        if divisor < 0 {
+            sign = "-"
+        }
+    }
+
+    var i:Int = 0
+    while abs_dividend >= abs_divisor {
+        i += 1
+        abs_dividend -= abs_divisor
+    }
+
+    if sign != "" {
+        i += 1
+        print(i)
+    }
+    else {
+        print(sign + String(i))
+    }
+}
+catch ParamError.missingDividendAndDivisor {
+    print("Missing Dividend and Divisor")
+}
+catch ParamError.missingDivisor {
+    print("Missing Divisor")
+}
+catch ParamError.invalidDividend {
+    print("Invalid Dividend. (Dividend > Divisor)")
+}
+catch ParamError.invalidDivisor {
+    print("Invalid Divisor. Divisor > 0")
+}
+catch let error {
+    print(error)
+}