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lib: Add a function to convert a string to a hex value

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Add an xtoa() function, similar to itoa() but for hex instead.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Artem Lapkin <email2tema@gmail.com>
Tested-by: Artem Lapkin <email2tema@gmail.com>
This commit is contained in:
Simon Glass
2021-10-14 12:48:07 -06:00
committed by Tom Rini
parent 3bfb0f719a
commit 4a255ea3b6
3 changed files with 56 additions and 4 deletions
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24
test/print_ut.c
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@@ -335,16 +335,40 @@ static int print_itoa(struct unit_test_state *uts)
ut_asserteq_str("0", simple_itoa(0));
ut_asserteq_str("2147483647", simple_itoa(0x7fffffff));
ut_asserteq_str("4294967295", simple_itoa(0xffffffff));
/* Use #ifdef here to avoid a compiler warning on 32-bit machines */
#ifdef CONFIG_PHYS_64BIT
if (sizeof(ulong) == 8) {
ut_asserteq_str("9223372036854775807",
simple_itoa((1UL << 63) - 1));
ut_asserteq_str("18446744073709551615", simple_itoa(-1));
}
#endif /* CONFIG_PHYS_64BIT */
return 0;
}
PRINT_TEST(print_itoa, 0);
static int print_xtoa(struct unit_test_state *uts)
{
ut_asserteq_str("7f", simple_xtoa(127));
ut_asserteq_str("00", simple_xtoa(0));
ut_asserteq_str("7fffffff", simple_xtoa(0x7fffffff));
ut_asserteq_str("ffffffff", simple_xtoa(0xffffffff));
/* Use #ifdef here to avoid a compiler warning on 32-bit machines */
#ifdef CONFIG_PHYS_64BIT
if (sizeof(ulong) == 8) {
ut_asserteq_str("7fffffffffffffff",
simple_xtoa((1UL << 63) - 1));
ut_asserteq_str("ffffffffffffffff", simple_xtoa(-1));
}
#endif /* CONFIG_PHYS_64BIT */
return 0;
}
PRINT_TEST(print_xtoa, 0);
int do_ut_print(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
{
struct unit_test *tests = UNIT_TEST_SUITE_START(print_test);