Re: memparse(), simple_strtoul() prototypes...

From: H. Peter Anvin
Date: Sun Feb 18 2007 - 19:31:16 EST

Francis Moreau wrote:

I must miss something...

Looking at these prototypes

unsigned long simple_strtoul(const char *cp, char **endp,unsigned int base)
unsigned long long memparse (char *ptr, char **retptr)

I'm really wondering why not all parameters are not all 'const'. None
of these functions modify any pointer containts. And simple_strtoul()
ends up doing sometghing like:

if (endp)
*endp = (char *)cp;

Could anyone shed some light ?

The C standard behaves like that, too, mostly because C doesn't have a way to say "X is const iff Y is const" (unlike C++, btw.)

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