Zilog ZUSBOPTS Instrukcja Użytkownika Pobierz pdf (Strona 431)

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UM017105-0511 Standard Header Files

Zilog Developer Studio II – ZNEO™

User Manual

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General Utilities <stdlib.h>

The <stdlib.h> header declares several types, functions of general utility, and macros.

Types

Macros

Functions

String Conversion

The

atof, atoi, and atol functions do not affect the value of the errno macro on an

error. If the result cannot be represented, the behavior is undefined.

div_t Structure type that is the type of the value returned by the div function.

ldiv_t Structure type that is the type of the value returned by the ldiv function.

size_t Unsigned integral type of the result of the sizeof operator.

wchar_t Integral type whose range of values can represent distinct codes for all

members of the largest extended character set specified among the sup-

ported locales.

EDOM Expands to distinct nonzero integral constant expressions.

ERANGE Expands to distinct nonzero integral constant expressions.

EXIT_SUCCESS Expands to integral expression which indicates successful termina-

tion status.

EXIT_FAILURE Expands to integral expression which indicates unsuccessful termi-

nation status.

HUGE_VAL Expands to a positive double expression, not necessarily repre-

sented as a float.

NULL Expands to a null pointer constant.

RAND_MAX Expands to an integral constant expression, the value of which is

the maximum value returned by the rand function.

double atof(const char *nptr); Converts string to double.

int atoi(const char *nptr); Converts string to int.

long int atol(const char *nptr); Converts string to long.

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