haskell - What is the general case of QuickCheck's promote function? -

-

QuickCheck's to promote function, such as with a structure for a fun physician What is the term work of the form: Promote :: (a -> fb) - & gt; F (A -> B)

(This is the inverse of the flip $ FMAP (flip ($)): F (A -> B) - & Gt; (A -> FB) ). Are there any factors with any operator other than (->> r and id )? (I'm sure there should be). Googling 'quickcheck promotion' only triggers QuickCheck documentation, which does not promote in any general context AFAICS ; No result is produced as a result of 'Quick check boost' for search.

So far I have a <

  • f = identification
  • to promote in both F and G then the pair-thrower HT = (Feet , GT also does
  • If there is to promote in both F and G then HT = F (GT) also does
  • If there is a booster in in the F, and any type of forfformer HT = GT - & gt;

    Very useful, unless you only need suppliers.

    Now, using these four constructs, we can find many examples for f for which is promoted exists: / P> Feet = (T, T) Feet = (T, B -> T) Feet = (T -> A) -> TFT = ((T, T) -> B) - & gt; (T, T, T) FT = ((T, T, C - T; (T -> B) -> T) -> A) - & gt;

    Also keep in mind that boost means the property that is indicated by f . 

      Points:: T -> FT Point X = FMAP (CUSTOM) (Promote ID)   
     Essentially the same question:

Comments

Post a Comment

Popular posts from this blog

php - PDO bindParam() fatal error -

-
I am trying to learn PDO, now I have written this small code, but it gives me a serious error: Fatal error: Call a member function at a non-object dot () ... $ con = new mysqli ("127.0.0.1", "root", "", "csvdangercheck"); $ Query = $ con- & gt; ("Id,` var1`, `var2`) values ​​(" id,: var1,: var2) ";); $ query- & gt; bypass pattern (': id', $ id); $ query- & gt; BindParam (': var1', $ VAL1); $ Query- & gt; bindParam (': var2', $ val2); $ Query-> Executed (); I Trying to use print_r ($ con-> errorInfo ()) but Fatal error: Undefined method mysqli :: errorInfo ( ) ... can someone tell me what am I missing? Flaffeh said, you have PDO Missing Mysqy, try it: $ con = new PDO ('mysql: host = 127.0.0.1; dbname = csvdangercheck', 'root', '');
Read more

php - How can I cram 6+31 numeric characters into 22 alphanumeric characters? -

-
I have a 6 digit number and a 31-digit number (such as "234536" and "201103231043330478311223582826") that I The API needs to be crawled in the same 22-character alphanumeric field that uses PHP. I tried to convert each one to 32 (using custom code could not handle the base_convert () large number) and to connect with a single-character delimiter, but It only gives me 26 characters This is a restore API, so the letters should be URI-protected. I would like to do a database table cross with two references without reference to another reference value, if possible, any suggestions? Instead use a radix of 62. This will give you 22 characters for the top, 3.35 for the pre and 17.3 for the next. & gt; & Gt; & Gt; Math.log (10 ** 6) /math.log (62) 3.3474826039165504 & gt; & Gt; & Gt; Math.log (10 ** 31) /math.log (62) 17.295326786902177
Read more

logging - How can I log both the Request.InputStream and Response.OutputStream traffic in my ASP.NET MVC3 Application for specific Actions? -

-
For a specific set of tasks, I need to log in to the incoming request inputstream as well as outgoing response. is. I am using an ActionFilterAttribute for this and overriding the OnActionExecuted and OnResultExecuted methods. So I'm starting with this idea ... Public category ActionLoggerAttribute: ActionFilterArrbit {Public Override Zero On-Offed Execution (ActionActioned Contact Filter Filter) {base.OnActionAxecuted (FilterContext); HttpRequestBase request = filterContext.HttpContext.Request; // TODO: Log the request. InputStream} Public Override Zero OnResultExecuted (ResultExecutedContext FilterContext) {base.OnResultExecuted (filterContext); HTTPRPSPointBase Response = FilterContacts Hpptex response; // TODO: Log on Response.OutputStream}} Ideally I'll hook it up with enterprise library logging because I'm already using it for error logging. Am I reaching the input and output stream at the right time? Can I easily use the Enterprise Library to log i...
Read more