Questions tagged [redefine]
101 questions
66
votes
4 answers
How to redefine a Ruby constant without warning?
I'm running some Ruby code which evals a Ruby file every time its date changes. In the file, I have constant definitions, like
Tau = 2 * Pi
and, of course, they make the interpreter display the unwanted "already initialized constant" warning every…
Eldritch Conundrum
- 8,452
- 6
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54
votes
13 answers
Redefine Class Methods or Class
Is there any way to redefine a class or some of its methods without using typical inheritance? For example:
class third_party_library {
function buggy_function() {
return 'bad result';
}
function other_functions(){
return…
SeanDowney
- 17,368
- 20
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- 90
36
votes
2 answers
How do I declare an array when I don't know the length until run time?
I originally had an array[1..1000] that was defined as a global variable.
But now I need that to be n, not 1000 and I don't find out n until later.
I know what n is before I fill the array up but I need it to be global therefore need a way to define…
Arthur
- 3,376
- 11
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12
votes
2 answers
How do I redefine built-in Perl functions?
I want to do two things:
In production code, I want to redefine the open command to enable me to add automagic file logging. I work on data processing applications/flows and as part of that, it's important for the user to know exactly what files are…
mmccoo
- 8,386
- 5
- 41
- 60
12
votes
1 answer
C preprocessor redefine conflict dependent on include order
I just had a redefine conflict in the project I'm working on and while tracing down why it's not happening on all platforms (turned out to be to order of includes), I stumbled upon the following behavior which I cannot explain.
1. compiles without…
grasbueschel
- 879
- 2
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- 24
9
votes
2 answers
Can I use enable_if together with typedef?
I want to define a variable for which the type depends on some condition. I want something like this:
typedef typename enable_if::type Type;
typedef typename enable_if::type Type;
But the conpiler says I redefined the…
maple
- 1,828
- 2
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9
votes
1 answer
Redefining a function in an R package
I tried to modify and redefine a function (xcmsRaw) in R package xcms by first defining a function
my.xcmsRaw <- function(filename, profstep = 1, profmethod = "bin",
profparam = list(mzcorrf=1), # PATCH - mzcorrf is the m/z…
Tom Wenseleers
- 7,535
- 7
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- 103
7
votes
2 answers
redefine __and__ operator
Why I can't redefine the __and__ operator?
class Cut(object):
def __init__(self, cut):
self.cut = cut
def __and__(self, other):
return Cut("(" + self.cut + ") && (" + other.cut + ")")
a = Cut("a>0")
b = Cut("b>0")
c =…
Ruggero Turra
- 16,929
- 16
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- 141
7
votes
1 answer
XSD: How to redefine the data type of a simpleType eg. from xs:string to xs:integer
I am trying to extend and tailor an external xsd schema (of the fixml standard). I need to change the data type of some of the elements, without touching the original schema, but by redefining it; but have been finding it exceedingly cumbersome.…
VGDIV
- 679
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5
votes
6 answers
How to reuse and override inherited javascript function
I have a class for mouse events. I'm using dojo b/c I like its OO approach
dojo.declare("MouseObject", null, {
constructor: function(){},
onclick : function(){...},
_onClick : function(){...}
});
_onClick() listens for window generated mouse…
puk
- 16,318
- 29
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- 199
5
votes
2 answers
Avoid redefinition preprocessor variable
I have various preprocessor variables which have the same name in different libraries.
In order to avoid conflicts, what I am doing is (in the example there is only 1 conflicting variable and 1 header to include for simplicity):
#ifdef VAR
#define…
Marco Agnese
- 349
- 4
- 15
5
votes
3 answers
Python __setattr__ and __getattr__ for global scope?
Suppose I need to create my own small DSL that would use Python to describe a certain data structure. E.g. I'd like to be able to write something like
f(x) = some_stuff(a,b,c)
and have Python, instead of complaining about undeclared identifiers or…
KT.
- 10,815
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4
votes
5 answers
How to redefine malloc() in Linux for use in C++ new
I have a mem_malloc() and mem_free() defined for me and I want to use them to replace the malloc() and free() and consequently C++'s new and delete.
I define them as follows:
extern "C" {
extern void *mem_malloc(size_t);
extern void mem_free(void…
WilliamKF
- 41,123
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4
votes
1 answer
Restrict element of type in other namespace
I think what I need to do it's not possible with XSD 1.0, but anyway I'll ask...
I have a complexType in a file, say a.xsd. In principle, I cannot touch this file. In particular, I cannot change its targetNamespace. An example would…
J C Gonzalez
- 861
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- 23
3
votes
5 answers
How to redefine the = in python?
I would to know what Python call when I use the =:
a = b
Where do I look for this information?
I would have the "assignment to variables" with my =
a would have a similar behaviour
l=list()
l.append(1)
l.append(2)
l.append(3)
l1=l
l1[2]…
fege
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