Zilog Z80380 Manual do Utilizador descarregar pdf (Página 71)

UM004001-COR1103 4–7

Run Time Environment Library Functions

div FUNCTION

Header file statement: #include <stdlib.h>

Syntax: div_t div( int num, int denom);

The div function divides numer by denom, computing the quotient and the remainder. The

div_t structure contains the following elements:

The sign of the quotient is the same as that of the mathematical quotient. Its absolute value is

the largest integer that is less than the absolute value of the mathematical quotient. If the

denominator is 0, the behavior is undefined.

Return Value

The div function returns a structure of type div_t, comprising both the quotient and the

remainder. The structure is defined in the stdlib.h header file.

is FUNCTIONS

Header file statement: #include <ctype.h>

Syntax: int isalnum( int c );

int isalpha( int c );

int iscntrl( int c );

int isdigit( int c );

int isgraph( int c );

int islower( int c );

int isprint( int c );

int ispunct( int c );

Parameter Description

numer

Numerator

denom Denominator

Element Description

int quot

Quotient

int rem Remainder

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