libc/stdlib: Refine octal check of lib_checkbase()
Signed-off-by: wangjianyu3 <wangjianyu3@xiaomi.com>
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02f1503f9f
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9320638848
@ -69,21 +69,21 @@ int lib_checkbase(int base, FAR const char **pptr)
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if (*ptr == '0')
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{
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if (ptr[1] != '\0')
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{
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/* Assume octal */
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/* Assume octal */
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if (lib_isbasedigit(ptr[1], 8, NULL))
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{
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base = 8;
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ptr++;
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}
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/* Check for hexadecimal */
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/* Check for hexadecimal */
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if ((*ptr == 'X' || *ptr == 'x') &&
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lib_isbasedigit(ptr[1], 16, NULL))
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{
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base = 16;
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ptr++;
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}
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else if ((ptr[1] == 'X' || ptr[1] == 'x') &&
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lib_isbasedigit(ptr[2], 16, NULL))
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{
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base = 16;
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ptr += 2;
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}
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}
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}
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