source:
trunk/sys/dietlibc/atoll.c
@
90
| Last change on this file since 90 was 1, checked in by , 8 years ago | |
|---|---|
| File size: 375 bytes | |
| Line | |
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| 1 | #include <endian.h> |
| 2 | #include <ctype.h> |
| 3 | #include <stdlib.h> |
| 4 | |
| 5 | #if __WORDSIZE != 64 |
| 6 | long long int atoll(const char* s) { |
| 7 | long long int v=0; |
| 8 | int sign=1; |
| 9 | while ( *s == ' ' || (unsigned int)(*s - 9) < 5u) ++s; |
| 10 | switch (*s) { |
| 11 | case '-': sign=-1; |
| 12 | case '+': ++s; |
| 13 | } |
| 14 | while ((unsigned int) (*s - '0') < 10u) { |
| 15 | v=v*10+*s-'0'; ++s; |
| 16 | } |
| 17 | return sign==-1?-v:v; |
| 18 | } |
| 19 | #endif |
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