| ? |
| % format identifer. |
| % Operator
(modulo). |
| + Operator
(addition). |
| - Operator
(Subtraction). |
| / Operator
(division). |
| /* Open a comment. |
| // Inline
comment (C++). |
| * Operator
(Multiplication). |
| * width/percision
formating character. |
| * Pointer
operator (Unary). |
| */ Close a comment. |
| -- Operator
(decrement). |
| ++ Operator
(increment). |
| = Operator
(Assignment, Equals). |
| *= Operator. |
| /= Operator. |
| %= Operator. |
| += Operator. |
| -= Operator. |
| <<=
Operator. |
| >>= Operator. |
| &= Operator. |
| ^= Operator. |
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| ? continued |
| |= Operator. |
| == Operator. |
| != Operator. |
| > Operator. |
| < Operator. |
| >= Operator. |
| <= Operator. |
| &&
Operator. |
| || Operator. |
| ! Operator. |
| &
Reference Variables (C++). |
| & Bitwise
AND Operator (binary). |
| | Bitwise
OR Operator (binary). |
| ^ Operator. |
| << Shift
Left Operator. |
| >> Shift Right
Operator. |
| ~ Operator. |
| & Address
of Operator (Unary). |
| ? Operator. |
| : Operator. |
| . Operator
(structure member). |
| -> Operator
(structure pointer). |
| ... in function
declarations. |
| , Comma
Operator. |
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| I continued |
| input from the keyboard |
| int keyword. |
| Integer arrays |
| Integer Constants. |
| integer
formatting. |
| I/O. |
| isalnum Checks
whether a character is alphanumeric (A-Z, a-z, 0-9) |
| iscntrl Checks
whether a character is a control character or delete ( decimal 0-31 and
127) |
| isdigit Checks
whether a character is a digit (0-9) |
| isgraph Checks
whether a character is a printable character, excluding the space (decimal
32) |
| islower Checks
whether a character is a lower case letter (a-z). |
| isprint Checks
whether a character is printable (decimal 32-126). |
| ispunct Checks
whether a character is punctuation (decimal 32-47, 58-63, 91-96, 123-126) |
| isspace Checks
whether a character is white space - space, CR HT VT NL, FF. |
| isupper Checks
whether a character is an upper case letter (A-Z). |
| isxdigit Checks
whether a character is hex digit (0-9, A-F, a-f). |
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