When recording a macro, the mouse pointer changes to include a tape icon, indicating that the recording is active. This visual cue helps users to be aware that their actions are being captured for automation. It serves as a reminder to avoid unnecessary actions that should not be included in the macro. Once the recording is stopped, the macro can be played back to replicate the recorded actions.
NULL Macro is simply what is defined as 0 in a macro provided by the libraryNull pointer is a pointer which has 0 or NULL value stored and points to nowhwere still it points to 0x00 i.e. the first memory location of the OSNull pointer != Uninitialized pointer because an uninitialised pointer can point anywhere in the memory location ...but a NULL pointer surely points to no where(but still behind the scene we can say that it only points to 0x00). Never we can retrive a Null pointer location using th"&" operator..neither will malloc/calloc return NULL IF THERE IS SPACE IN THE MEMORY. NULL pointer is unique !!nishantnitb@aol.com
Using a NULL macro to make C portableI'll assume that you're asking your question for C type language programming. A NULL pointer is a pointer that's guarnteed to point to nothing. This may be 0 in a UNIX/Linux system or some other address in another system. Using the NULL macro to set/initialize your pointers will make your programs more portable among systems than using something like the 0.#include char *c = 0; // initialize to NULL--not portablechar *p = NULL; // initialize to NULL as defined in stdio is portableAddendumThe code:char *c = 0;actually is portable because the compiler converts 0's used in a pointer context (cast to a pointer) to the machine's representation of a NULL pointer, which may or may not be all 0 bits. The NULL macro itself might be defined as something like 0 or (void *)0, and both definitions are portable. As a corollary, the following code is also portable:if (!c) {// do something}because it is equivalent to:if (c != 0) {// do something}and the 0 above is converted to a NULL pointer because it is being compared with a pointer.
To record and save a sequence of keystrokes and instructions, users can use a macro recording tool or feature provided in software applications. They typically involve activating the recording mode, performing the desired actions (keystrokes, mouse clicks, etc.), and then stopping the recording and saving the macro for future use.
The NULL macro is an implementation-defined macro. It is used to symbolise the zero address (0x0) in C programs and older C++ programs. It is not type safe, but is the conventional method of assigning the zero address to a pointer variable. C++11 introduced the type-safe nullptr data type.
You can record a macro and before starting the recording you can use i key as assigned key to run the macro. Also, if you have an existing macro to which you want to assign i key then Press Alt + F8 which will show you the list of existing macro. Click on Edit and type the i in the assign key box. Remember Ctrl is my default. So, if you want the macro to have Ctrl SHIFT I then turn on the caplock. Your question is not very decriptive in nature.
A typedef is a compiler macro. A reference is a pointer, usually implemented with transparent syntax. They have no relationship between each other.
Calling a macro loads the macro into memory, while executing the macro runs the macro.
If, for example, you wish to delete rows 4 through 6... Range("A4:A6").Select Selection.EntireRow.Delete The easiest way to learn how to do something from a Macro that can also be done manually is to click Record Macro (it doesn't matter what you name it), perform the task manually, click Stop Recording, click Macros and select the Macro that was just created, click Edit, and look at the commands that were generated by the program.
The term is 'MACRO.' A macro is a recording of keystrokes that can be played back upon a command. If I type d d a t e without spaces, I get: May 15, 2010 which is today's date. The date macro is stored in the application that is watching me type. it also corrects misspellings. The spell checker stores macros such as teh=the.
Nested macro calls refer to the macro calls within the macros. A macros is available within other macro definitions also. In the scenario when a macro call occurs, which contains another macro call, the macro processor generates the nested macro definition as text and places it on the input stack. The definition of the macro is then scanned and the macro processor complies it.
Macro is feature in MS Excel software which records all the steps and all the steps can be repeated whenever a same task is required to be performed. It helps in reduction of time in performing monotonous task. Macro is available in Tools menu.
Nested macro calls refer to the macro calls within the macros. A macros is available within other macro definitions also. In the scenario when a macro call occurs, which contains another macro call, the macro processor generates the nested macro definition as text and places it on the input stack. The definition of the macro is then scanned and the macro processor complies it.