Re: [PATCH] git-compat-util: convert skip_{prefix,suffix}{,_mem} to bool

> Use the data type bool and its values true and false to document the
> binary return value of skip_prefix() and friends more explicitly.
> 
> This first use of stdbool.h, introduced with C99, is meant to check
> whether there are platforms that claim support for C99, as tested by
> 7bc341e21b (git-compat-util: add a test balloon for C99 support,
> 2021-12-01), but still lack that header for some reason.
> 
> A fallback based on a wider type, e.g. int, would have to deal with
> comparisons somehow to emulate that any non-zero value is true:
> 
>    bool b1 = 1;
>    bool b2 = 2;
>    if (b1 == b2) puts("This is true.");
> 
>    int i1 = 1;
>    int i2 = 2;
>    if (i1 == i2) puts("Not printed.");
>    #define BOOLEQ(a, b) (!(a) == !(b))
>    if (BOOLEQ(i1, i2)) puts("This is true.");
> 
> So we'd be better off using bool everywhere without a fallback, if
> possible.  That's why this patch doesn't include any.