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https://github.com/fluencelabs/musl
synced 2025-06-05 19:11:34 +00:00
47d027ee1a
1. my interpretation of subject sequence definition was wrong. adjust parser to conform to the standard. 2. some code for handling tail overflow case was missing (forgot to finish writing it). 3. typo (= instead of ==) caused ERANGE to wrongly behave like EINVAL
35 lines
579 B
C
35 lines
579 B
C
#include <inttypes.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <ctype.h>
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#include "intparse.h"
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uintmax_t strtoumax(const char *s1, char **p, int base)
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{
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const unsigned char *s = (void *)s1;
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struct intparse ip = {0};
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if (p) *p = (char *)s1;
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if (base && base-2U > 34) {
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errno = EINVAL;
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return 0;
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}
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for (; isspace(*s); s++);
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ip.base = base;
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__intparse(&ip, s, SIZE_MAX);
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if (p && ip.err != EINVAL)
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*p = (char *)s + ip.cnt;
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if (ip.err) {
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errno = ip.err;
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if (ip.err == EINVAL) return 0;
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return UINTMAX_MAX;
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}
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return ip.neg ? -ip.val : ip.val;
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}
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