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Writing a compiler in its own language
...s, specifically escape sequences. You will write code to convert \n to the character with the decimal code 10 (and \r to 13, etc).
After that compiler is ready, you will start to reimplement it in C. This process is called "bootstrapping".
The string parsing code will become:
...
if (c == 92) { /...
How can I delete the current line in Emacs?
...e ()
"Deletes the current line"
(interactive)
(forward-line 0)
(delete-char (- (line-end-position) (point)))
(delete-blank-lines))
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How to convert a string of numbers to an array of numbers?
... the string so x=>+x (which is even shorter than the Number function (5 chars instead of 6)) is equivalent to :
function(x){return parseInt(x,10)}// version from techfoobar
(x)=>{return parseInt(x)} // lambda are shorter and parseInt default is 10
(x)=>{return +x} ...
Best way to implement request throttling in ASP.NET MVC?
...OnActionExecuting(ActionExecutingContext c)
{
var key = string.Concat(Name, "-", c.HttpContext.Request.UserHostAddress);
var allowExecute = false;
if (HttpRuntime.Cache[key] == null)
{
HttpRuntime.Cache.Add(key,
true, // is this the sm...
Does a method's signature in Java include its return type?
...ple:
public class Foo {
public int myMethod(int param) {}
public char myMethod(int param) {}
}
No, the compiler won't know the difference, as their signature: myMethod(int param) is the same. The second line:
public char myMethod(int param) {}
will give you can error: method is al...
Convert text into number in MySQL query
...ists a name and a number in the format of "name-number". The column has VARCHAR type. I want to sort the rows according the number (rows with the same name) but the column is sorted according do character order, i.e.
...
Java: method to get position of a match in a String?
... First loop will fail to find all positions if matching one char. You don't need +1 in for loop second statement, because third statement does counting i++ try for String text = "0011100"; matching word char "1" it will print 2,4 not 2,3,4
– Strauteka
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Difference: std::runtime_error vs std::exception()
... not standard. The runtime_error class has a constructor taking arguments (char*) on both platforms, Windows and Linux. To be portable, better use runtime_error.
(And remember, just because a specification of your project says your code does not have to run on Linux, it does not mean it does never ...
How do I check if a number is positive or negative in C#?
...
This is the industry standard:
int is_negative(float num)
{
char *p = (char*) malloc(20);
sprintf(p, "%f", num);
return p[0] == '-';
}
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Convert integer into its character equivalent, where 0 => a, 1 => b, etc
I want to convert an integer into its character equivalent based on the alphabet. For example:
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