source:
asp3_tinet_ecnl_rx/trunk/musl-1.1.18/src/stdlib/atoi.c
Last change on this file was 337, checked in by , 6 years ago | |
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File size: 300 bytes |
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1 | #include <stdlib.h> |
2 | #include <ctype.h> |
3 | |
4 | int atoi(const char *s) |
5 | { |
6 | int n=0, neg=0; |
7 | while (isspace(*s)) s++; |
8 | switch (*s) { |
9 | case '-': neg=1; |
10 | case '+': s++; |
11 | } |
12 | /* Compute n as a negative number to avoid overflow on INT_MIN */ |
13 | while (isdigit(*s)) |
14 | n = 10*n - (*s++ - '0'); |
15 | return neg ? n : -n; |
16 | } |
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