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libc/stdlib: Refine octal check of lib_checkbase()

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Signed-off-by: wangjianyu3 <wangjianyu3@xiaomi.com>
This commit is contained in:
wangjianyu3 2023-12-28 21:59:02 +08:00 committed by Xiang Xiao
parent 02f1503f9f
commit 9320638848
1 changed files with 10 additions and 10 deletions
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12
libs/libc/stdlib/lib_checkbase.c
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@ -68,22 +68,22 @@ int lib_checkbase(int base, FAR const char **pptr)
*/ */
if (*ptr == '0') if (*ptr == '0')
{
if (ptr[1] != '\0')
{ {
/* Assume octal */ /* Assume octal */
if (lib_isbasedigit(ptr[1], 8, NULL))
{
base = 8; base = 8;
ptr++; ptr++;
}
/* Check for hexadecimal */ /* Check for hexadecimal */
if ((*ptr == 'X' || *ptr == 'x') && else if ((ptr[1] == 'X' || ptr[1] == 'x') &&
lib_isbasedigit(ptr[1], 16, NULL)) lib_isbasedigit(ptr[2], 16, NULL))
{ {
base = 16; base = 16;
ptr++; ptr += 2;
}
} }
} }
} }