0
A global variable is a place of data storage which multiple modules of application (sometimes all modules) can access to read and modify the variable's content.
A macro is something altogether different. A macro is a set of instructions, typically used to save keystrokes when coding, and to maintain code readability. While macros can reference, declare or use variables (including global variables), macros and variables are quite different and cannot be compared.
Wiki User
∙ 11y ago
Wiki User
∙ 10y agoGlobal variables are system-wide variables set by the OS at start-up, and can't be modified.
Environmental variables are variables that are system-wide, but can be modified.
Add your answer:
Earn +20 pts
What is micro and how it is different from c variable name?
A macro is a variable that has a constant value throughout the program whereas a C variable is an identifier whose value can differ from function to function, it can be incremented or decremented whereas the value of a macro remains same .
What is enclosed between a macro header statement and a macro end statement?
The macro content.
What is null macro?
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.
What is the difference between mirco and macro?
macro-The climate of a large geographic area. micro- is a local atmospheric zone where the climate differs from the surrounding area
How you can interchange two integer values using swap variable in c language?
t = a; a = b; b = t; // t is a third integer variable (swap variable) But here's a way without a swap variable, given as as a macro in C: #define SWAP(a,b) { if (a!=b) { a^=b; b^=a; a^=b; }} // Swap macro by XOR Once you define it, you can say swap(x,y) to swap x and y. The numbers kind of flow through each other and end up swapped.
Give the differences between micro and macro economics?
ten difference of micro economics macro economics
Differences between micro environment and macro environment of an organization?
Uranus is the greenish blue planet and it is gaseous.
What is micro and how it is different from c variable name?
A macro is a variable that has a constant value throughout the program whereas a C variable is an identifier whose value can differ from function to function, it can be incremented or decremented whereas the value of a macro remains same .
What is the difference between executing a macro and calling a macro?
Calling a macro loads the macro into memory, while executing the macro runs the macro.
What are the differences between macroeconomics and microeconomics?
for micro we are studying the economic systems in general but as for macro we are now `looking at the world 's economy as a whole
What is enclosed between a macro header statement and a macro end statement?
The macro content.
Difference between macro and micro?
Macro is big micro is little
What are the definitions and differences of Mirco and Marco levels?
micro is a small member of a system but macro is totality of the system therefor macro is larger than micro.
What is the difference between macro and micro neutrons?
macro is bigger than micro
What are the hedge funds in Barbados?
There are many hedge funds there especially those of the global macro variety.
Is the relationship between the inflation rate and changes in the quantity of money macro or micro economics?
macro
What is the difference between macro and micro decomposers?
The difference between macro and micro decomposers is micro decomposers can't be seen by the naked eye while macro decomposers are big enough so they can be seen.
