atoi()

convert a string to an integer 

Function

SYNOPSIS

#include <stdlib.h>

int atoi(const char *nptr);

DESCRIPTION

Converts a string representing an integer to an integer. The string to be converted consists of optional leading white space, an optional sign and a series of contiguous digits.

The call atoi(nptr) is equivalent to: 

(int) strtol(nptr,(char **)NULL, 10)

PARAMETERS

nptr 

Points to a string to be converted to an integer.

RETURN VALUES

The atoi() function returns the converted integer value.

If the converted value overflows, LONG_MIN or LONG_MAX is returned (according to the sign of the value) and errno is set to ERANGE. If no character could be converted, zero is returned.

CONFORMANCE

ANSI/ISO 9899-1990.

MULTITHREAD SAFETY LEVEL

MT-Safe.

PORTING ISSUES

None.

AVAILABILITY

PTC MKS Toolkit for Professional Developers
PTC MKS Toolkit for Professional Developers 64-Bit Edition
PTC MKS Toolkit for Enterprise Developers
PTC MKS Toolkit for Enterprise Developers 64-Bit Edition

SEE ALSO

Functions:
atol(), strtol()

PTC MKS Toolkit 10.4 Documentation Build 39.