O’Caml Basics: Unit and Options - Princeton University
[Pages:52]O'Caml Basics: Unit and Options
COS 326 David Walker Princeton University
Tuples
? Here's a tuple with 2 fields:
(4.0, 5.0) : float * float
Tuples
? Here's a tuple with 2 fields:
(4.0, 5.0) : float * float
? Here's a tuple with 3 fields:
(4.0, 5, "hello") : float * int * string
Tuples
? Here's a tuple with 2 fields:
(4.0, 5.0) : float * float
? Here's a tuple with 3 fields:
(4.0, 5, "hello") : float * int * string
? Here's a tuple with 4 fields:
(4.0, 5, "hello", 55) : float * int * string * int
Tuples
? Here's a tuple with 2 fields:
(4.0, 5.0) : float * float
? Here's a tuple with 3 fields:
(4.0, 5, "hello") : float * int * string
? Here's a tuple with 4 fields:
(4.0, 5, "hello", 55) : float * int * string * int
? Have you ever thought about what a tuple with 0 fields might look like?
Unit
? Unit is the tuple with zero fields!
() : unit
? the unit value is written with an pair of parens ? there are no other values with this type!
Unit
? Unit is the tuple with zero fields!
() : unit
? the unit value is written with an pair of parens ? there are no other values with this type!
? Why is the unit type and value useful? ? Every expression has a type:
(print_string "hello world\n") : ???
Unit
? Unit is the tuple with zero fields!
() : unit
? the unit value is written with an pair of parens ? there are no other values with this type!
? Why is the unit type and value useful? ? Every expression has a type:
(print_string "hello world\n") : unit
? Expressions executed for their effect return the unit value
................
................
In order to avoid copyright disputes, this page is only a partial summary.
To fulfill the demand for quickly locating and searching documents.
It is intelligent file search solution for home and business.
Related download
- lecture 03 bits bytes and data types
- encode — encode string into numeric and vice versa
- destring — convert string variables to numeric variables
- 10 3 1 reading a string from the keyboard arrays and strings
- solutions to exercises
- 2 conceptual modeling using the entity relationship model
- o caml basics unit and options princeton university
Related searches
- o reilly s parts and prices
- princeton university admissions staff
- princeton university hospital princeton nj
- cbt basics handouts and worksheets
- accounting basics debits and credits
- computer basics test and answers
- algebra basics expressions and polynomials
- princeton university acceptance rate
- princeton university acceptance
- princeton university early decision
- princeton university transfer acceptance rate
- princeton university restrictive early action