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What's the point of const pointers?
...g things you didn't mean to do. Imagine the following typo:
void foo(int* ptr)
{
ptr = 0;// oops, I meant *ptr = 0
}
If you use int* const, this would generate a compiler error because you're changing the value to ptr. Adding restrictions via syntax is a good thing in general. Just don't take...
HTTPS connections over proxy servers
Is it possible to have HTTPS connections over proxy servers? If yes, what kind of proxy server allows this?
9 Answers
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difference between socket programming and Http programming
What is the difference between socket programming and Http programming? can anyone help please?
5 Answers
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Sort points in clockwise order?
... int dax = ((a.x() - center.x()) > 0) ? 1 : 0;
vmovss xmm2, DWORD PTR [ecx]
vmovss xmm0, DWORD PTR [edx]
; 29 : const int day = ((a.y() - center.y()) > 0) ? 1 : 0;
vmovss xmm1, DWORD PTR [ecx+4]
vsubss xmm4, xmm0, xmm2
vmovss xmm0, DWORD PTR [edx+4]
push ...
How does push notification technology work on Android?
...ions don't have to be running to receive the intents.
More information at http://developer.android.com/google/gcm/gcm.html
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What is the difference between const int*, const int * const, and int const *?
...ake it constant to prevent this side effect.
int var0 = 0;
const int &ptr1 = var0;
ptr1 = 8; // Error
var0 = 6; // OK
Constant pointers
Once a constant pointer points to a variable then it cannot point to any other variable.
int var1 = 1;
int var2 = 0;
int *const ptr2 = &var1;
ptr2 = &...
How do I base64 encode (decode) in C?
... together a project on github to compare the base64 encoders and decoders: https://github.com/gaspardpetit/base64/
At this point, I have not limited myself to C algorithms - if one implementation performs well in C++, it can easily be backported to C. Also tests were conducted using Visual Studio 2...
How to get the number of characters in a std::string?
...nce hit, you should probably use those instead of
// the C functions. See: http://icu-project.org/apiref/icu4c/
//
struct UTextDeleter { void operator()(UText* ptr) { utext_close(ptr); } };
struct UBreakIteratorDeleter { void operator()(UBreakIterator* ptr) { ubrk_close(ptr); } };
using PUText = std...
What causes a TCP/IP reset (RST) flag to be sent?
I'm trying to figure out why my app's TCP/IP connection keeps hiccuping every 10 minutes (exactly, within 1-2 seconds). I ran Wireshark and discovered that after 10 minutes of inactivity the other end is sending a packet with the reset (RST) flag set. A google search tells me "the RESET flag signif...
libevent+protobuf轻松搭建tcpserver - C/C++ - 清泛网 - 专注C/C++及内核技术
... }
}
3. protobuf作为client与server之间的数据传输协议详见：http://code.google.com/apis/protocolbuffers/ libevent protobuf tcpserver