source:
EcnlProtoTool/trunk/musl-1.1.18/src/stdlib/atoll.c@
444
Last change on this file since 444 was 444, checked in by , 4 years ago | |
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File size: 320 bytes |
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1 | #include <stdlib.h> |
2 | #include <ctype.h> |
3 | |
4 | long long atoll(const char *s) |
5 | { |
6 | long long n=0; |
7 | int neg=0; |
8 | while (isspace(*s)) s++; |
9 | switch (*s) { |
10 | case '-': neg=1; |
11 | case '+': s++; |
12 | } |
13 | /* Compute n as a negative number to avoid overflow on LLONG_MIN */ |
14 | while (isdigit(*s)) |
15 | n = 10*n - (*s++ - '0'); |
16 | return neg ? n : -n; |
17 | } |
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