Question: What is a two token operator?

The double-number-sign or token-pasting operator (##), which is sometimes called the merging or combining operator, is used in both object-like and function-like macros. It permits separate tokens to be joined into a single token, and therefore, can’t be the first or last token in the macro definition.

What is the ## operator in C?

The ‘##’ pre-processing operator performs token pasting. When a macro is expanded, the two tokens on either side of each ‘##’ operator are combined into a single token, which then replaces the ‘##’ and the two original tokens in the macro expansion.

What is token pasting operator in C?

The Token Pasting operator is a preprocessor operator. It sends commands to compiler to add or concatenate two tokens into one string. We use this operator at the macro definition.

When writing a selection construct the most probable?

When writing a selection construct the most probable conditions should come before those that occur less frequently. It is possible to indicate on a structure chart when a user-defined is called from within a selection construct.

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Which logic operator is used when a condition is false quizlet?

The logic operator ELSE is used when a condition is false. The logic operator IF begins the reaction statement.

What is and ## in C language?

# and ## Operators in C ? … The Stringize operator is a preprocessor operator. It sends commands to compiler to convert a token into string. We use this operator at the macro definition. Using stringize operator we can convert some text into string without using any quotes.

What is a ## B in C?

2. 8. The ## symbol in a macro definition represents concatenation. So #define concat(a,b) a ## b. will mean that concat (pri, ntf) (“hello worldn”);

What is ## in define?

## is called token concatenation, used to concatenate two tokens in a macro invocation.

What is macros in C?

A macro is a piece of code in a program that is replaced by the value of the macro. Macro is defined by #define directive. Whenever a macro name is encountered by the compiler, it replaces the name with the definition of the macro. Macro definitions need not be terminated by semi-colon(;).

What is macro in C with example?

In C, when we define a macro then it is replaced by the value of that macro. And it will be set for the entire program. With #define directive, you can define a macro. 2.

Predefined Macros in C.

MACRO What it does
__STDC__ Defined as 1 when the compiler compiles.

What are the two possible results of evaluating a logical expression?

Logical expressions (also called Boolean expressions) are the result of applying logical (Boolean) operators to relational or arithmetic expressions. The result of an operation has two possible states: true or false. Logical expressions are considered false when equal to 0, and are considered true when nonzero.

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What do transitional fossils illustrate?

A transitional fossil is any fossilized remains of a life form that exhibits traits common to both an ancestral group and its derived descendant group. This is especially important where the descendant group is sharply differentiated by gross anatomy and mode of living from the ancestral group.

Which branch point represents the most recent common ancestor of all bears?

2. G: The tree includes the most recent common ancestor of all living species of bears (branch point 1).

Does conditional operator take two operands?

The conditional operator takes two operands.

Which one of the following operators is the best choice when determining if a number is outside a range?

The ‘||’ logical operator works best when testing a number to determine if it is outside a range.