Definitions for "Integer constant"
A decimal, octal, or hexadecimal constant.
An optionally signed digit string that contains no decimal point.
A constant that is a whole number with no decimal point. It can have a leading sign and is interpreted as a decimal number.
an rvalue expression whose type depends on the value, the base, and any suffix you write
a series of one or more numerals followed by an optional radix specifier
a symbol that represents an integer value