zephyr/lib/libc
Nicolas Pitre a6891e0313 prf.c: make it 64-bit compatible
On 64-bit systems the most notable difference is due to longs and
pointers being 64-bit wide. Therefore there must be a distinction
between ints and longs.

This patch:

- Make support functions take a long rather than an int as this can
  carry both longs and ints just fine.

- Use unsigned values in _to_x() to cover the full unsigned range
  and avoid sign-extending big values. Negative values are already
  converted to unsigned after printing the minus sign. This also makes
  division and modulus operations slightly faster.

- Remove excessive casts around va_arg() and use proper types with it.

- Implement the l and z length modifiers as they're significant on
  64-bit targets. While at it, throw in the z modifier as well.
  Since they all come down to 32-bit values on 32-bit targets, the
  added code should get optimized away as duplicate by the compiler
  in that case.

Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
2019-06-13 12:55:17 -07:00
..
minimal prf.c: make it 64-bit compatible 2019-06-13 12:55:17 -07:00
newlib Build: Build with newlib-nano c library 2019-05-15 10:46:44 -05:00
CMakeLists.txt license: cleanup: add SPDX Apache-2.0 license identifier 2019-04-07 08:45:22 -04:00
Kconfig Build: Build with newlib-nano c library 2019-05-15 10:46:44 -05:00