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1589 - Dynamic Memory Allocation in C - calloc, realloc
The Problem The C programming language is a fixed array size language - you write the size of your variables into your code and that's how big they are. Overrun an array and you corrupt other memory - and it's up to you the programmer to ensure this doesn't happen. Many past security leaks, such ....

1588 - String interpretation in Ruby
Ruby's rather clever in terms or how it handles string interpretation. Since variable names only start with special characters sometimes, it can't use Perl's trick of making the $ and @ character special in a string. So instead it uses a #{.....} notation. For example: puts "Tocker is #{tocker} ....

1587 - Some Ruby programming examples from our course
I was giving a Public Ruby Course to a small group at the end of last week ... and having a small group gave me the opportunity to write some demonstrations in front of them. I have now tidied these up and have pleasure in presenting to more Ruby demonstrations: Ruby's BEGIN block The compact me ....

1586 - Variable types in Ruby
In Ruby: * Variable with names starting with a lower case letter are local variables * Names starting with a capital letter are constants - you can set them once each time you run a program and then they are fixed * Names starting with a single @ character are object variables - in other words, y ....

1585 - Well House Consultants / Manor - Staff
This Good Friday morning [21st March 2008], I was serving breakfasts at 7 a.m. - truly the hotel business runs at all hours of the day and night, and 365 days a year (yes we did have breakfasts to serve and guests to check in on Christmas day!) And so we need - and have - a strong team to cover 7 m ....

1584 - Using Structs and Unions together effectively in C
C's Structs allow you to define a number of different variables, of different types and sizes, sequentially within a collection - you could, for example, define an animal as being: typedef struct {   char name[15];    float age;    char breed[15];   } animal; ....

1583 - Businesses in West Wiltshire - networking
Yesterday evening, we ran our first Speed Networking event of the year at Well House Manor. Over two one-hour sessions, each of 20 companies attended got to meet the other 19 companies who were with us, moving around the tables every five minutes. I find it a very educational excerise to provide ....

1582 - Ruby, C, Java and more - getting out of loops
break and continue statements have been available for loop control for many years, and others functionallity has been added such as Perl's redo. From today's Ruby Course, here's a table that compares these loop controls in Ruby to similar commands in the other languages that I have been discussing ....

1581 - What is an lvalue? (Perl, C)
An lvalue is an expression that you can write on the left hand side of an assignment statement - in other words an expression that defines a specific memory address of a variable. The most common lvalues are simple variables or array / list / hash / dictionary members ... for example $hello = "Hel ....

1580 - Congratulations, Martin and Marta
Congratulations to Martin (our morning manager) and Marta on the arrival of David Jonathan - a son, born this morning at about a quarter past 10. The brief message I have tells me that mother and son are doing well. ....

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