strtoull

Syntax

#include <stdlib.h> unsigned long long int strtoull(const char *s, char **endp, int base);

Description

This is just like strtoll (see section strtoll) except that the result is unsigned.

Return Value

The value.

Portability

ANSI/ISO C	C99; not C89
POSIX	1003.1-2001; not 1003.2-1992

Example

printf("Enter a number: "); fflush(stdout); gets(buf); char *bp; printf("The value is %llu\n", strtoull(buf, &bp, 0));