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KSTRTOLL(9) Basic C Library Functions KSTRTOLL(9)

NAME

kstrtoll - convert a string to a long long

SYNOPSIS

int kstrtoll(const char * s, unsigned int base, long long * res);

ARGUMENTS

const char * s

The start of the string. The string must be null-terminated, and may also include a single newline before its terminating null. The first character may also be a plus sign or a minus sign.

unsigned int base

The number base to use. The maximum supported base is 16. If base is given as 0, then the base of the string is automatically detected with the conventional semantics - If it begins with 0x the number will be parsed as a hexadecimal (case insensitive), if it otherwise begins with 0, it will be parsed as an octal number. Otherwise it will be parsed as a decimal.

long long * res

Where to write the result of the conversion on success.

DESCRIPTION

Returns 0 on success, -ERANGE on overflow and -EINVAL on parsing error. Used as a replacement for the obsolete simple_strtoull. Return code must be checked.

COPYRIGHT

June 2017 Kernel Hackers Manual 4.11