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by: Christian Meier |
last post by:
Hello,
Yes, I know that hash maps aren't in the standard. But I couldn't find any
better newsgroup for this post. (or is there an SGI library newsgroup?)
I am currently testing the hash_map implementation of SGI. And now I am not
sure if it is really true, what I discovered....
Here is my code:
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by: peter_k |
last post by:
Hi
I've defined hash_map in my code using this:
-------------------------------------------
#include <string>
#include <hash_map.h>
&
namespace __gnu_cxx {
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by: anjangoswami06 |
last post by:
Hi,
I am interested to know how it is possible to update the data type with
"insert" with stl hash_map. Suppose we have,
hash_map<const char *, MyDataType, hash_compare<const char*,
some_compare_func_obj>>
x;
//I want to insert a new instance of MyDataType if a new key is
encountered but if it is a key //which already exists I want to update
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by: newbie |
last post by:
For STL containers like hash_map, need I explicitly call clear()
before delete()ing it?
e.g.
hash_map<string, MyClass**my_map;
my_map = new (hash_map<string, MyClass*>);
....
....
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by: aaragon |
last post by:
Hello everyone,
I have a VERY BIG set of double values that I want to map to intervals
so I thought a clever way to do this was using a hash table. Let's say
that I want to map all double values in the range 0-0.5 to a single
std::pair<double,double>.
This is what I've done so far:
#include <iostream>
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by: Axel Gallus |
last post by:
Hello,
i have a question concerning STL non-standard hash_maps under Visual Studio
2005:
Microsoft STL requires a "hash_compare" object for hash_maps:
template <class Key, class Type, class Traits=hash_compare<Key, less<Key,
class Allocator=allocator<pair <const Key, Type >
class hash_map
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by: Amit Bhatia |
last post by:
Hi,
I am trying to use hash maps from STL on gcc 3.3 as follows:
#ifndef NODE_H
#define NODE_H
#include <ext/hash_map>
#include "node_hasher.h"
class Node;
typedef hash_map<pair<int,int>, Node, Node_HasherLoc_Tree;
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by: frankw |
last post by:
Hi,
I have a hash_map with string as key and an object pointer as value.
the object is like
class{
public:
float a;
float b;
...
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by: marek.vondrak |
last post by:
Hi,
I am wondering if there are any functional differences between SGI's
hash_map and tr1's unordered_map. Can these two containers be
interchanged? What would it take to switch from hash_map to
unordered_map? Thank you.
-Marek
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by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
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by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
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by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
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by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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