30 Questions
What is the total number of bits in a float and a double combined?
96 + 32
According to IEEE 754, what is the number of bits in the significand of a double?
52
Why can't float and double types store all possible floating-point values exactly?
Because of limited number of bits in the significand
What determines the range of values that a type can store?
Number of bytes allocated for a type
What is the purpose of a declaration in C?
To associate a program variable with a type
What is the purpose of the brackets in a declaration?
To denote an optional part of the syntax
What is the purpose of a semi-colon in a declaration?
To conclude the declaration, making it a complete statement
How do we group identifiers of variables that share the same type in a declaration?
By separating the identifiers by commas
What naming conventions must an identifier for a variable satisfy?
It must satisfy certain naming conventions
What is the minimum number of bits required to represent a short int in a 32-bit environment?
16 bits
Why should we avoid using C++ reserved words in C?
For upward compatibility
What is the purpose of the const qualifier in C?
To hold a constant value
How does C store characters and symbols?
Using the ASCII collating sequence
What is the primary purpose of a type in a typed programming language?
To specify the range of values that can be stored and the operations that can be performed on those values
What is the main difference between ASCII and EBCDIC collating sequences?
The symbol order in ASCII differs from that in EBCDIC
What is the purpose of the 2's complement rule in storing negative integers?
To simplify the addition and subtraction circuits in the ALU
What is the relation between a type and raw memory?
A type defines how to store values in memory and which operations are admissible on those values
What is the size of a char type in C?
One byte
What is the minimum number of bits required to represent a long long int in a 32-bit environment?
64 bits
What is the main difference between a float and a double in C?
A float is used for single-precision and a double is used for double-precision
What is the purpose of the type system in a typed programming language?
To interpret the bit streams in memory
What is the purpose of the IEEE Standard 754 for Binary and Floating-Point Arithmetic?
To provide a model for floating-point arithmetic
What is the primary difference between a char and an int type in C?
The number of bytes occupied
What is the purpose of identifying the contents of a variable using a type in C?
To allocate memory for the variable
How does C store integral data?
In a binary form that represents the value exactly
How many types of arithmetic types are described in this chapter?
Four
What is the purpose of the size specifiers in C?
To ensure a type contains a minimum number of bits
What is the primary purpose of the four most common types in the C language?
To perform arithmetic calculations
What is the relationship between the type of a variable and the range of values that can be stored in it?
The type determines the range of values that can be stored
What is the benefit of using different types to store different information in C?
It allows for more efficient memory allocation
Learn about typed programming languages, type systems, and how they define how to store values in memory. Understand the concept of types, their role in defining the range of possible values, and how they determine admissible operations.
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