Page 12 - DCAP201_FUNDAMENTALS_OF_DATA_STRUCTURES

Unit 1: Data Structures

Table 1.3 gives the common sizes of the integer types in C: Notes
Table 1.3: Common Sizes of the Integer Types in C

The value ranges of integer types can be found in the limits.h header file. This header file
contains the macros that define minimum and maximum values of each integer type,
e.g. INT_MIN, INT_MAX for minimum and maximum size of the integer.

Task Compare and contrast C signed and unsigned integer types.

1.2.2 C Float Types

C provides various floating-point types that represents non-integer number with a decimal
point at any position.

Example: With integer types, you only can have numbers 1, 2, 10, 200… however with
floating-point type, you can have 1.0, 2.5, 100.25 and so on.
There are three standard floating-point types in C:

float: for numbers with single precision.
double: for numbers with double precision.
long double: for numbers with extended precision.
Table 1.4 illustrates the technical attributes of various floating-point types in C. It is important
to notice that this is only the minimal requirement for storage size defined by C.
Table 1.4: Technical Attributes of Various Floating-point Types in C

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