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How to redirect cin and cout to files?
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Here is an working example of what you want to do. Read the comments to know what each line in the code does. I've tested it on my pc with gcc 4.6.1; it works fine.
#include <iostream>
#include <fstream>
#include <string>
void f()
{
std::string line;
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Single quotes vs. double quotes in Python [closed]
... Interesting, I use them in exactly the same way. I don't remember ever reading anything to nudge me in that direction. I also use triple single quotes for long string not intended for humans, like raw html. Maybe it's something to do with English quote rules.
– Mike A
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Constant pointer vs Pointer to constant [duplicate]
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Generally I would prefer the declaration like this which make it easy to read and understand (read from right to left):
int const *ptr; // ptr is a pointer to constant int
int *const ptr; // ptr is a constant pointer to int
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What are the differences between LDAP and Active Directory?
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@MarkBennett From my (very quick) reading it appears their conclusions were that LDAP had security issues and was being pushed by a political agenda which was profit rather than security driven. I think using the term 'negative tone' is an understatement but,...
Preferred Java way to ping an HTTP URL for availability
...out The timeout in millis for both the connection timeout and the response read timeout. Note that
* the total timeout is effectively two times the given timeout.
* @return <code>true</code> if the given HTTP URL has returned response code 200-399 on a HEAD request within the
* given ...
Decoding JSON using json.Unmarshal vs json.NewDecoder.Decode
...ule of thumb is this:
Use json.Decoder if your data is coming from an io.Reader stream, or you need to decode multiple values from a stream of data.
Use json.Unmarshal if you already have the JSON data in memory.
For the case of reading from an HTTP request, I'd pick json.Decoder since you're ob...
Why can't radio buttons be “readonly”?
...doesn't submit the value (or does it?), and it grays out the radio button. Read-only is really what I'm looking for, but for some mysterious reason it doesn't work.
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Are std::vector elements guaranteed to be contiguous?
...ctually C++03 is also called C++98-TC1 (technical corrigendum) from what i read
– Johannes Schaub - litb
May 11 '09 at 18:02
2
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When is TCP option SO_LINGER (0) required?
... local agents in the infrastructure, change the model to push. But if we already have such an application and it grows, then we can make it work by tuning twe linger. You change one param, and you suddenly have working application, without investing a budget to implement new architecture.
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Why does comparing strings using either '==' or 'is' sometimes produce a different result?
...is
inherently O(n) in the length of the
strings; it typically requires reads
from several regions of memory, which
take time; and the reads fills up the
processor cache, meaning there is less
cache available for other needs. With
interned strings, a simple object
identity test suffic...