Zilog ZUSBOPTS - Manual (Page 431)

UM017105-0511 Standard Header Files
Zilog Developer Studio II – ZNEO™
User Manual
403
General Utilities
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.