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.
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 .
The macro content.
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.
macro-The climate of a large geographic area. micro- is a local atmospheric zone where the climate differs from the surrounding area
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.
ten difference of micro economics macro economics
Uranus is the greenish blue planet and it is gaseous.
Calling a macro loads the macro into memory, while executing the macro runs the macro.
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 .
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
The macro content.
Macro is big micro is little
micro is a small member of a system but macro is totality of the system therefor macro is larger than micro.
macro is bigger than micro
The structures of macro-molecules, such as DNA and proteins, can be used to infer relatedness between species because they are inherited from common ancestors. By comparing the similarities and differences in the sequences of these molecules among different species, scientists can construct phylogenetic trees that show the evolutionary relationships between them. Closer related species tend to have more similar macro-molecular structures than distantly related species.
There are many hedge funds there especially those of the global macro variety.
A macro lens is specifically designed for close-up photography, allowing for a higher level of magnification and detail compared to a regular lens. The main differences lie in the minimum focusing distance and magnification ratio. A macro lens can focus much closer to the subject and achieve a 1:1 magnification ratio, capturing small details with sharpness and clarity. This results in higher quality close-up images with greater depth of field and minimal distortion.