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1.1 ! root 1: /* @(#)string.c 1.4 */ ! 2: /* ! 3: * UNIX shell ! 4: * ! 5: * Bell Telephone Laboratories ! 6: * ! 7: */ ! 8: ! 9: #include "defs.h" ! 10: ! 11: ! 12: /* ======== general purpose string handling ======== */ ! 13: ! 14: ! 15: char * ! 16: movstr(a, b) ! 17: register char *a, *b; ! 18: { ! 19: while (*b++ = *a++); ! 20: return(--b); ! 21: } ! 22: ! 23: any(c, s) ! 24: register char c; ! 25: char *s; ! 26: { ! 27: register char d; ! 28: ! 29: while (d = *s++) ! 30: { ! 31: if (d == c) ! 32: return(TRUE); ! 33: } ! 34: return(FALSE); ! 35: } ! 36: ! 37: cf(s1, s2) ! 38: register char *s1, *s2; ! 39: { ! 40: while (*s1++ == *s2) ! 41: if (*s2++ == 0) ! 42: return(0); ! 43: return(*--s1 - *s2); ! 44: } ! 45: ! 46: length(as) ! 47: char *as; ! 48: { ! 49: register char *s; ! 50: ! 51: if (s = as) ! 52: while (*s++); ! 53: return(s - as); ! 54: } ! 55: ! 56: char * ! 57: movstrn(a, b, n) ! 58: register char *a, *b; ! 59: register int n; ! 60: { ! 61: while ((n-- > 0) && *a) ! 62: *b++ = *a++; ! 63: ! 64: return(b); ! 65: }
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