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Frequently Asked Questions

How do I make a descriptor parameter read/write?

Descriptors FAQ
You cannot call this function with a non-modifiable descriptor, which makes sense because you don't want a read only descriptor to be modified. Inside the function you can both read from and write to the parameter. Remember that the descriptor must already have sufficient space in it for the data to expand into, if necessary. If there isn't, you'll get a panic.

How do I make a descriptor parameter read-only?

Descriptors FAQ
This function can still be called with a modifiable descriptor like a TPtr as the argument, because these derive from TDesC (a TPtr is a specialised type of TDes). Inside the function, only the TDesC operations may be performed on the parameter. Its contents will not be changed, even if you have passed in a modifiable, TDes-derived descriptor.

In a wildcard instantiation, can I read and write fields whose type is the type parameter?

Java Generics FAQs - Frequently Asked Questions
Is it really impossible to create an object whose type is a wildcard parameterized type? Cast and instanceof Which types can or must not appear as target type in an instanceof expression? Overloading and Overriding

How can I read and write from a database?

FAQ - iMacros
Database integration is very easy with iMacros thanks to its powerful Scripting Interface. iMacros can connect to any Windows database, for example Access or SQL Server, but also MySQL. The Scripting Interface can be used from any Windows programming or scripting language like Excel VBA, Foxpro, Perl, C, C++, Java with no problems. Please see the following example scripts: "extract-2-file.vbs" (uses wsh-extract-and-fill-part1 and wsh-extract-and-fill-part1 macros) "extract-2-database.

Can a primitive data type be specified as a method parameter, in the deployment descriptor?

Enterprise JavaBeans (EJB) FAQs
There are no specific restriction for using Java primitive types in the tag in the Deployment descriptor. If you are using classes, use fully qualified class name such as java.lang.String and not just String. <method-params> <method-param>java.lang.String</method-param> <method-param>int</method-param> ... </method-params> Where ctx is the instance of "SessionContext" passed to the Session Bean, or the instance of "EntityContext" passed to the Entity Bean.

In a wildcard parameterized type, can I read and write fields whose type is the type parameter?

Java Generics FAQs - Under The Hood Of The Compiler
In a wildcard parameterized type a field whose type is the type parameter of the enclosing generic class is of unknown type. Depending on the wildcard (whether it is unbounded or has an upper or lower bound) different kinds of access are permitted or disallowed. Assignment to a field of the "unknown" type is rejected because the compiler cannot judge whether the object to be assigned is an acceptable one.

How can I read/write structs from/to data files?

Infrequently Asked Questions in comp.lang.c
Loop with putchar. Be careful; if your machine uses signed chars by default, all of the sign bits in your structure elements will be reversed. [a]

Q10: How do I check out a module with read-write access?

CDCVS FAQ
business for the checked out module. You shouldn't have to type it again to do updates, commits, etc.

What is a descriptor?

OpenVMS FAQ -&- page 15
A descriptor is a data structure that describes a string or an array. Each descriptor contains information that describes the type of the data being referenced, the size of the data, and the address of the data. It also includes a description of the storage used for the data, typically static or dynamic. Descriptors are passed by reference.

How do I make BiblioWeb automatically add users with 'read' or 'write' privilege?

biblioscape_faqs
For new users of BiblioWeb without an account, BiblioWeb will display a registration form which lets the user choose a login name and password. Once submitted, a new account will be automatically created. To enable this feature, please run "...\BiblioWeb\BiblioWeb.exe." Click on the "User Admin" button. Check the box "Create new account automatically upon request by user on the Web." Go to the "Auto create account with previlige" section.

What can I do to make my messages easier to read?

JC News FAQ
B) Quote carefully: When quoting another post, only quote those lines that are necessary to make or clarify your point. Ruthlessly trim unnecessary lines in the message; don't just slap your reply onto the previous post. C) Keep lines short: Keep lines shorter than 70 characters when you are typing your message. This allows people to quote your message without causing text to wrap around to the next line.

How to use fgets( ) to read on a file/socket descriptor?

Project 1
Could you tell me what the option "-lsocket -lnsl" is used for? How can I find this kind of options with command man? ( I tried man gcc, but cannot find them)

Can Deaf individuals read and write?

Frequently Asked Questions | ICS
Yes. A Deaf person's intelligence level is the same as the general population. Deaf individuals do many of the same things that their hearing peers do. A Deaf person works, drives a car, goes to college, attends public events, participates in the government and community where they live, and, if they have children, are involved in school functions and activities.

What is typically the ratio of read vs. write/update operations on the DB?

SPECjAppServer2004 Frequently Asked Questions
exact answer to this question is not possible, because it depends on several factors, including the injection rate and the application server and database products being used. Lab measurements with a specific application and database server at an injection rate of 80 have shown a database read vs. write/update ratio of approximately 4. Your mileage may vary.

who will read what i write?

swinney.org: Frequently Asked Questions
no one can really say who reads what on this here internet, though there are stats. all you can really bet is that some of the people who write on swinney.org a lot also read swinney.org a lot, so they will probably read what you write.

Question: What internal variable can I use to read and write ASCII?

FAQ's Frequently Asked Questions
Answer: The Link Variables are the only internal variables that will accept ASCII data. You must use the suffix ":A" on the link variable to allow the link variable to store ASCII data. For example: Link\State:A = "On"
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