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SuSE 11.3 - man page for strict_strtoull (suse section 9)

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STRICT_STRTOULL(9)		    Basic C Library Functions		       STRICT_STRTOULL(9)

NAME
       strict_strtoull - convert a string to an unsigned long long strictly

SYNOPSIS
       int strict_strtoull(const char * cp, unsigned int base, unsigned long long * res);

ARGUMENTS
       cp
	   The string to be converted

       base
	   The number base to use

       res
	   The converted result value

DESCRIPTION
       strict_strtoull converts a string to an unsigned long long only if the string is really an
       unsigned long long string, any string containing any invalid char at the tail will be
       rejected and -EINVAL is returned, only a newline char at the tail is acceptible because
       people generally

CHANGE A MODULE PARAMETER IN THE FOLLOWING WAY
       echo 1024 > /sys/module/e1000/parameters/copybreak

       echo will append a newline to the tail of the string.

       It returns 0 if conversion is successful and *res is set to the converted value, otherwise
       it returns -EINVAL and *res is set to 0.

       simple_strtoull just ignores the successive invalid characters and return the converted
       value of prefix part of the string.

COPYRIGHT
Kernel Hackers Manual 2.6.		    July 2010			       STRICT_STRTOULL(9)
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