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31 lines
695 B
C
31 lines
695 B
C
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#include <ctype.h>
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#include <stdlib.h>
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#include <limits.h>
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#include <errno.h>
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#include <inttypes.h>
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long long int strtoll(const char *nptr, char **endptr, int base)
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{
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int neg=0;
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unsigned long long int v;
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const char*orig=nptr;
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while(isspace(*nptr)) nptr++;
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if (*nptr == '-' && isalnum(nptr[1])) { neg=-1; nptr++; }
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v=strtoull(nptr,endptr,base);
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if (endptr && *endptr==nptr) *endptr=(char *)orig;
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if (v>LLONG_MAX) {
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if (v==0x8000000000000000ull && neg) {
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errno=0;
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return v;
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}
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errno=ERANGE;
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return (neg?LLONG_MIN:LLONG_MAX);
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}
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return (neg?-v:v);
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}
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intmax_t strtoimax(const char *nptr, char **endptr, int base)
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__attribute__((alias("strtoll")));
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