size_t vs ssize_t?

[aditya siram]

Is there a reason that both 'size_t' and 'ssize_t' exist? For example, functions in 'string.sats' all take or return 'size_t a' while 'strptr.sats' uses 'ssize_t a'. I see they're defined differently in 'integer_size.sats' but since they're both indexed similarly I'm unclear as to why the ATS prelude functions aren't standardized on one of them.
Thanks!

[Hongwei Xi]

ssize_t is signed but size_t is unsigned.

For instance, strptr_length returns a ssize_t because

it returns -1 when the given strptr is a null pointer.

On Sun, Dec 3, 2017 at 10:34 PM, aditya siram <aditya...@gmail.com> wrote:

Is there a reason that both 'size_t' and 'ssize_t' exist? For example, functions in 'string.sats' all take or return 'size_t a' while 'strptr.sats' uses 'ssize_t a'. I see they're defined differently in 'integer_size.sats' but since they're both indexed similarly I'm unclear as to why the ATS prelude functions aren't standardized on one of them.
Thanks!

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[aditya siram]

Ah, makes sense. Thanks!

On Sunday, December 3, 2017 at 9:42:04 PM UTC-6, gmhwxi wrote:

ssize_t is signed but size_t is unsigned.

For instance, strptr_length returns a ssize_t because

it returns -1 when the given strptr is a null pointer.

On Sun, Dec 3, 2017 at 10:34 PM, aditya siram <aditya...@gmail.com> wrote:

Is there a reason that both 'size_t' and 'ssize_t' exist? For example, functions in 'string.sats' all take or return 'size_t a' while 'strptr.sats' uses 'ssize_t a'. I see they're defined differently in 'integer_size.sats' but since they're both indexed similarly I'm unclear as to why the ATS prelude functions aren't standardized on one of them.
Thanks!

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