|
|
1.1 root 1: #if defined(LIBC_SCCS) && !defined(lint)
2: static char sccsid[] = "@(#)atol.c 5.2 (Berkeley) 3/9/86";
3: #endif LIBC_SCCS and not lint
4:
5: long
6: atol(p)
7: register char *p;
8: {
9: long n;
10: register int f;
11:
12: n = 0;
13: f = 0;
14: for(;;p++) {
15: switch(*p) {
16: case ' ':
17: case '\t':
18: continue;
19: case '-':
20: f++;
21: case '+':
22: p++;
23: }
24: break;
25: }
26: while(*p >= '0' && *p <= '9')
27: n = n*10 + *p++ - '0';
28: return(f? -n: n);
29: }
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