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Iteration

L1

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Iteration1.swift
#!/usr/bin/env swift;
import Foundation
import Utils

func main() -> Void {
	var max:Int = 5
	if CommandLine.arguments.count == 2 {
		max = Int(CommandLine.arguments[1]) ?? 5
	}
	for _:Int in 0..<max {
		print("Hello, world!")
	}
	exit(EXIT_SUCCESS)
}
main()
Output
$ swiftc Iteration1.swift -I . -L . -lUtils error: link command failed with exit code 1 (use -v to see invocation) ld: library not found for -lUtils clang: error: linker command failed with exit code 1 (use -v to see invocation)
Iteration2.swift
#!/usr/bin/env swift;
import Foundation

func main() -> Void {
	for i:Int in stride(from: 10, through: 1, by: -1) {
		print(String(i))
	}
	print("Blastoff!")
	exit(EXIT_SUCCESS)
}
main()
Output
$ swiftc Iteration2.swift -I . -L . -lUtils error: link command failed with exit code 1 (use -v to see invocation) ld: library not found for -lUtils clang: error: linker command failed with exit code 1 (use -v to see invocation)
Iteration3.swift
#!/usr/bin/env swift;
import Foundation

func main() -> Void {
	print("Even numbers up to 100...")
	for i:Int in stride(from: 2, through: 100, by: 2) {
		print(String(i))
	}
	exit(EXIT_SUCCESS)
}
main()
Output
$ swiftc Iteration3.swift -I . -L . -lUtils error: link command failed with exit code 1 (use -v to see invocation) ld: library not found for -lUtils clang: error: linker command failed with exit code 1 (use -v to see invocation)
Iteration4.swift
#!/usr/bin/env swift;
import Foundation

func main() -> Void {
	print("Floating point numbers")
	for d:Double in stride(from: 1.0, to: 2.01, by: 0.1) {
		print(String(d))
	}
	exit(EXIT_SUCCESS)
}
main()
Output
$ swiftc Iteration4.swift -I . -L . -lUtils error: link command failed with exit code 1 (use -v to see invocation) ld: library not found for -lUtils clang: error: linker command failed with exit code 1 (use -v to see invocation)
Iteration5.swift
#!/usr/bin/env swift;
import Foundation

func main() -> Void {
	print("Powers of 2 up to 256!")
var i:Int = 1
	while i <= 256 {
		print(String(i))
		i *= 2
	}
	exit(EXIT_SUCCESS)
}
main()
Output
$ swiftc Iteration5.swift -I . -L . -lUtils error: link command failed with exit code 1 (use -v to see invocation) ld: library not found for -lUtils clang: error: linker command failed with exit code 1 (use -v to see invocation)
Iteration6.swift
#!/usr/bin/env swift;
import Foundation

func main() -> Void {
	var s:String = "Hello, world! 🥰🇺🇸"
	for c in s {
		print(c)
	}
	exit(EXIT_SUCCESS)
}
main()
Output
$ swiftc Iteration6.swift -I . -L . -lUtils error: link command failed with exit code 1 (use -v to see invocation) ld: library not found for -lUtils clang: error: linker command failed with exit code 1 (use -v to see invocation)

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