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- #include <stdio.h>
- #include <ctype.h>
-
- #define DIGIT(x) (isdigit(x) ? (x) - '0' : \
- islower(x) ? (x) + 10 - 'a' : (x) + 10 - 'A')
- #define MBASE ('z' - 'a' + 1 + 10)
-
- long
- strtol(str, ptr, base)
- register char *str;
- char **ptr;
- register int base;
- {
- register long val;
- register int c;
- int xx, neg = 0;
-
- if (ptr != (char **)0)
- *ptr = str; /* in case no number is formed */
- if (base < 0 || base > MBASE)
- return (0); /* base is invalid -- should be a fatal error */
- if (!isalnum(c = *str)) {
- while (isspace(c))
- c = *++str;
- switch (c) {
- case '-':
- neg++;
- case '+': /* fall-through */
- c = *++str;
- }
- }
- if (base == 0)
- if (c != '0')
- base = 10;
- else if (str[1] == 'x' || str[1] == 'X')
- base = 16;
- else
- base = 8;
- /*
- * for any base > 10, the digits incrementally following
- * 9 are assumed to be "abc...z" or "ABC...Z"
- */
- if (!isalnum(c) || (xx = DIGIT(c)) >= base)
- return (0); /* no number formed */
- if (base == 16 && c == '0' && isxdigit(str[2]) &&
- (str[1] == 'x' || str[1] == 'X'))
- c = *(str += 2); /* skip over leading "0x" or "0X" */
- for (val = -DIGIT(c); isalnum(c = *++str) && (xx = DIGIT(c)) < base; )
- /* accumulate neg avoids surprises near MAXLONG */
- val = base * val - xx;
- if (ptr != (char **)0)
- *ptr = str;
- return (neg ? val : -val);
- }
-
- strcspn(s, set)
- register char *s;
- char *set;
-
- {
- register char *t;
- register int count = 0;
-
- while (*s)
- {
- t = set;
- while (*t && (*s != *t)) t++;
- if (!*t)
- {
- s++;
- count++;
- }
- else
- break;
- }
-
- return (count);
- }
-
-
- char *memset (s, c, n)
- char *s;
- int c, n;
- {
- if(c == 0)
- bzero(s, n);
- else{
- fprintf(stderr, "Failed in memset\n");
- LPExit(1);
- }
- }
-
- char *memcpy(b,a,s)
- char *b, *a;
- int s;
- {
- bcopy(a,b,s);
- return b;
- }
-