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What is the difference between “int” and “uint” / “long” and “ulong”?
I know about int and long (32-bit and 64-bit numbers), but what are uint and ulong ?
5 Answers
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ElasticSearch, Sphinx, Lucene, Solr, Xapian. Which fits for which usage? [closed]
...*, id AS pid, CRC32(safetag) as safetag_crc32 FROM hb_posts
sql_attr_uint = pid
# pid (as 'sql_attr_uint') is necessary for sphinx
# this field must be unique
# that is why I like sphinx
# you can store custom string fields into indexes (memory) as well
sql_field_string ...
Using .NET, how can you find the mime type of a file based on the file signature not the extension
...t(@"urlmon.dll", CharSet = CharSet.Auto)]
private extern static System.UInt32 FindMimeFromData(
System.UInt32 pBC,
[MarshalAs(UnmanagedType.LPStr)] System.String pwzUrl,
[MarshalAs(UnmanagedType.LPArray)] byte[] pBuffer,
System.UInt32 cbSize,
[MarshalAs(Un...
How do I safely pass objects, especially STL objects, to and from a DLL?
...very basic datatype, so that int will automatically be wrapped to int32_t, uint will be wrapped to uint32_t, etc. This all occurs behind the scenes, thanks to the overloaded = and () operators. I have omitted the rest of the basic type specializations since they're almost entirely the same except fo...
MFC CEdit控件自绘、MFC圆角输入框 - C/C++ - 清泛网 - 专注C/C++及内核技术
...ublic:
afx_msg void OnNcPaint();
afx_msg HBRUSH CtlColor(CDC* /*pDC*/, UINT /*nCtlColor*/);
};
MyEdit.cpp：
//####################################################################
// Comments: 圆角Edit控件
//
// UpdateLogs:
//########################################################...
VC IP地址控件（CIPAddressCtrl ）的自绘 - C/C++ - 清泛网 - 专注C/C++及内核技术
...oid OnNcPaint();
afx_msg HBRUSH OnCtlColor(CDC* /*pDC*/, CWnd* /*pWnd*/, UINT /*nCtlColor*/);
};
.cpp:
#include "stdafx.h"
#include "MyIPCtrl.h"
#include "../../MemDC.h"
#include "../../CommonFunc.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#endif
IMPLEMENT_DYNAMIC(CMyIPCtrl, CIPAddre...
Difference between int32, int, int32_t, int8 and int8_t
... int16_t;
typedef signed int int32_t;
typedef unsigned char uint8_t;
There is quite more to that like minimum width integer or exact width integer types, I think it is not a bad thing to explore stdint.h for a better understanding.
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Convert char to int in C and C++
...g. Settingchar equal to int8_t is wrong because it could equally likely be uint8_t or uint24_t.
– Roland Illig
Mar 31 '18 at 20:18
1
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Integer to hex string in C++
...tly the amount of hex digits as needed. Why emit 8 digits if the type is a uint8_t?
– Kornel Kisielewicz
Dec 31 '12 at 5:41
18
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CMFCTabCtrl的使用、颜色样式调整 - C/C++ - 清泛网 - 专注C/C++及内核技术
...G_PIC,&m_wndTabs);
m_wndTabs.AddTab (& m_DlgPic, _T("测试对话框"), (UINT)-1, FALSE);
CMFCTabCtrl