master build failure

Brian Candler B.Candler at
Thu Feb 21 01:25:08 CET 2013

On Wed, Feb 20, 2013 at 05:38:38PM +0000, Phil Mayers wrote:
> I freely admit to finding const in C confusing.

The most frequently seen example which helps me remember this:

    const char *p;     // equivalently: char const *p;

Read right-to-left: "p is a pointer to constant char". You can change p
(e.g.  p++ is OK) but you cannot change the char which p points to
(*p = '\0' is verboten)

The less common one is

    char *const p;

"p is a constant pointer to char". That is, p itself is a constant and
cannot change, but the thing pointed to by p can be changed.

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