Johannes Schindelin <Johannes.Schindelin@xxxxxx> writes:
> The function get_relative_cwd() works just as getcwd(), only that it
> takes an absolute path as additional parameter, returning the prefix
> of the current working directory relative to the given path. If the
> cwd is no subdirectory of the given path, it returns NULL.
> ...
> +/*
> + * get_relative_cwd() gets the prefix of the current working directory
> + * relative to 'dir'. If we are not inside 'dir', it returns NULL.
> + * As a convenience, it also returns NULL if 'dir' is already NULL.
> + */
> +char *get_relative_cwd(char *buffer, int size, const char *dir)
> +{
> + char *cwd = buffer;
> +
> + if (!dir || !getcwd(buffer, size))
> + return NULL;
When is it not a fatal error if get_relative_cwd() is called
with a NULL dir parameter, or getcwd() fails?
If there is no valid such cases, I would rather have this
die(), former with "BUG" and the latter with strerror(errno).
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