textexpander macros

") ;}\ while (0) warn_if (x = 0) ;=> do {If (x = 0) fprintf (stderr, "Warning: "" X = 0 "" \ n ");} while (0 ); The exp parameter is used in the IF statement at one time, and is also converted into characters in the fprintf function at another time. If X is also a macro, it will continue to be expanded in the IF statement, but it will not be converted into characters. Do While (0) loop is a small trick, making it possible to write warn_if (ARG); otherwise, the IF statement in the macro c

Just for reference because I always forget. BT file name macros: % Messageid % Unique Identifier of the message in BizTalk Server (guid). The value is taken directly from message context property BTS. messageid % Datetime_bts2000 % UTC date time in format yyyymmddhhmmsss, where SSS means seconds and milliseconds (e.g. 199707121035234 means 1997/07/12, 10:35:23 and 400 milliseconds)

certain input values of the record, and the other information to respond to different values. In this case, you can use conditions to control the macro process. The condition is a logical expression. Macros are executed along different paths based on the true or false condition results. If this condition is true, Microsoft Access performs the operation in this row. Enter the ellipsis (…) in the condition column of the operation that follows this oper

You can define the following Macros in stdafx. h as needed. // Yin# Ifndef winver // allow use of features specific to Windows 95 and Windows NT 4 or later.# Define winver 0x0501 // change this to the appropriate value to target Windows 98 and Windows 2000 or later.# Endif # Ifndef _ win32_winnt // allow use of features specific to Windows NT 4 or later.# DEFINE _ win32_winnt 0x0501 // change this to the appropriate value to target Windows 98 and Wi

Today I am writing a smallProgramWhen, inadvertently offended the C ++ keyword, depressed for a long time, only to find out.At that time, I wrote a class and then defined an object:Class Test{//}; Test or; // This violates C ++'s keyword. Khan! Therefore, write down this article to learn more, and find other macros that are rarely noticed at ordinary times. And# Define and [keyword in C ++] Or# Define or | [keyword in C ++] XOR# Define XOR ^ [ke

During the development process, nslog is inevitably used to print the information for debugging, but the releae software cannot contain nslog. Otherwise, the software may be rejected, but should all nslogs be commented out before release? What about subsequent debugging? Below, we can use a custom macro to replace nslog, and only output log information in debug mode. # Ifdef debug_mode # define dlog (S ,...) nslog (@ " Set the followingCodeAdd to the xxprefix. PCH file of the project In th

#ifndef __gnuc__ #error compiler for G++,windows, as if no # #生成的新字符串当成一个宏处理 #endif#define Conn (x, y) x#y//x must be a string, when used, Conn ("2", 3), not conn (2,3), 3 can be any type of string//# There are two usages, one is string connection, the other is to connect the generated string as a new macro//new macro must exist//with # #连接中参数中包含已定义的宏时, the macro will not expand the # define STRTest#define Hello (x, y, z) x# #y # #z//First usage Cout Test program #includeAdvanced usage of C + +

Sourceprint?01.// @interface02.#define singleton_interface(className) 03.+ (className *)shared##className;04.05.06.// @implementation07.#define singleton_implementation(className) 08.static className *_instance; 09.+ (id)allocWithZone:(struct _NSZone *)zone 10.{ 11.static dispatch_once_t onceToken; 12.dispatch_once(onceToken, ^{ 13._instance = [super allocWithZone:zone]; 14.}); 15.return _instance; 16.} 17.+ (className *)shared##className 18.{ 19.static dispatch_once_t onceToken; 20.dispatch_on

=dispatch_get_main_queue ();///Global QueueLet Kglobalthread = Dispatch_get_global_queue (Dispatch_queue_priority_default,0);//MARK:-System version///get the system version numberLet ksystemversion =Float (Uidevice.currentdevice (). systemversion);///whether the IOS7 systemLet Kisios7orlater = Int (Uidevice.currentdevice (). systemversion) >=7?true:false;///whether the IOS8 systemLet Kisios8orlater = Int (Uidevice.currentdevice (). systemversion) >=8?true:false;///whether the IOS9 systemLet Kis

(1) When defining an expression with a macro, use complete parentheses. Example: A macro defined below has some risk.#define Rectangle_area (A, b) A * b#define Rectangle_area (A, B) (A * b)#define Rectangle_area (A, B) (a) * (b)The correct definition should be:#define Rectangle_area (A, B) ((a) * (b))(2) Place multiple expressions defined by a macro in curly braces. Example: The following statement is only executed for the first expression of the macro. To illustrate the problem, the For stateme

certain input values of the record, and the other information to respond to different values. In this case, you can use conditions to control the macro process. The condition is a logical expression. Macros are executed along different paths based on the true or false condition results. If this condition is true, Microsoft Access performs the operation in this row. Enter the ellipsis (…) in the condition column of the operation that follows this oper

Common predefined macrosAll compilers that follow the iso c Standard must define the following macros. The macro names start with two underscores and end with two underscores.1. _ DATE __"Alternative text" is a string literal with a compilation date in the format of "mm dd yyyy" (for example, "Mar 19 2006 "). If the date is less than 10 days, place a space character in front of the day.2. _ FILE __The literal value of this string contains the name of

Posture for optionsWhat if there is an "option variable" to represent one or more values at the same time swollen? Then we have to ns_options.For example, there is a simple example:objective-c 12345 typedef ns_options(nsuinteger, jzzpersontype) { jzzpersontypehigh = 0, jzzpersontyperich = 1 0, jzzpersontypepretty = 1 1 }; As you can see, our options here are defined in the way of bitwise operations , and the benefit is that our option variables can be repr

Below is my own in the learning C + + process encountered problems and solutions, I share this out, hoping to help meet the same problems of compatriots!a , adding a message response function650) this.width=650; "Src=" https://s3.51cto.com/wyfs02/M00/9A/05/wKioL1lQeqaD6ipwAAAeVKjx3Dc917.png-wh_500x0-wm_ 3-wmp_4-s_415092369.png "title=" 2.png "alt=" Wkiol1lqeqad6ipwaaaevkjx3dc917.png-wh_50 "/>afx_msg void Onownerdraw (NMHDR * pnotifystruct, lresult* pResult); Here is your custom function Declare_

: (G)/255.0f Blue: (B)/255.0f Alpha: (A)]#define UICOLORFROMRGB (rgbvalue) [Uicolor colorwithred: ((float) ((Rgbvalue 0xFF0000) >>))/255.0 Green: (( float) ((Rgbvalue 0xff00) >> 8)/255.0 Blue: ((float) (Rgbvalue 0xFF))/255.0 alpha:1.0]/** 获取沙盒 Document 路径*/#define kDocumentPath [NSSearc#pragma mark - Check/** 字符串是否为空*/#define kStringIsEmpty(str) ([str isKindOfClass:[NSNull class]] || str == nil || [str length] /** 数组是否为空*/#define kArrayIsEmpty(array)(array == nil || [array isKindOfClass:[NSNu

In Unity's cross-platform, we often roam across platforms, such as Android, Apple, andpc. On different platforms, we have to do different things. However, we can use Unity's own macro definition to make platform judgments. Unity helps us define, for example, the following platform preprocessing. (There are also macro definitions of version numbers, which are not written here.) ) We use #if #elif #endif进行宏命令的判断,unity determines which conditions are true and then executes the specified code. Exa

program does not block up and waits for the data to be ready to return, and the Read function returns an error eagain, prompting your application to now have no data to read please try again later.For example, when a system call (such as fork) fails because there is not enough resources (such as virtual memory), the return eagain prompts it to be called again (perhaps next time it succeeds).Linux-non-blocking socket programming handles Eagain errorsWhat does it mean when a non-blocking socket o

from TXT fileLine Input #1, strinputStrdata = StrinputIf InStr (strdata, Pathfilter) > 0 ThenDim StrLine3 (0 to 1) as StringStrLine3 (0) = strpathStrLine3 (1) = Split (Strdata, Pathfilter) (1)If strLine3 (0) = Strpath Then' Path cell name pair value.' Cells (j, Pathrng.column) = StrLine3 (1)strTmpPath = StrLine3 (1)End IfElseDim strLine4 () as StringStrLine4 = Split (strdata, Itemfilter)If strLine4 (0) = Strpath Then' Path cell name pair value.' Cells (j, Pathrng.column) = StrLine4 (1)strTmpPat

0 of this character, typically used to obtain zero ASCII values.0: Numbers,NULL: typically used for pointers.4, the Macro debuggingThe method of macro debugging is very convenient, Application debugging:#ifdef DEBUG #define DBG (...) fprintf (stderr, "dbg (%s,%s (),%d):", __file__, __function__, __line__); fprintf (stderr, __va_args__)#else#define DBG (...) #endifPrints the current file, function, line number.__va_args__: is a string that converts the actual strings inside the DBG brackets. Whe

of the member member.2.const typeof (((type *) 0)->member) *__mptr = (PTR) defines the variable __mptr pointer and assigns PTR to __mptr. After this step, __mptr is a constant pointer to the member data type, which points to the address that PTR points to.3. (char *) __MPTR converts the __mptr to a byte-type pointer.4. Offsetof (Type,member)) is to get the position offset of "member member" in "struct type".5. (char *) __mptr-offsetof (Type,member)) is the starting address (a char * type pointe