1 /* @(#) pf_clib.c 96/12/18 1.12 */
2 /***************************************************************
3 ** Duplicate functions from stdlib for PForth based on 'C'
5 ** This code duplicates some of the code in the 'C' lib
6 ** because it reduces the dependency on foreign libraries
7 ** for monitor mode where no OS is available.
10 ** Copyright 1994 3DO, Phil Burk, Larry Polansky, David Rosenboom
12 ** Permission to use, copy, modify, and/or distribute this
13 ** software for any purpose with or without fee is hereby granted.
15 ** THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
16 ** WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
17 ** WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
18 ** THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
19 ** CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
20 ** FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
21 ** CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
22 ** OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
24 ****************************************************************
25 ** 961124 PLB Advance pointers in pfCopyMemory() and pfSetMemory()
26 ***************************************************************/
31 /* Count chars until NUL. Replace strlen() */
32 #define NUL ((char) 0)
33 cell_t pfCStringLength( const char *s )
36 while( *s++ != NUL ) len++;
40 /* void *memset (void *s, cell_t c, size_t n); */
41 void *pfSetMemory( void *s, cell_t c, cell_t n )
43 uint8_t *p = s, byt = (uint8_t) c;
44 while( (n--) > 0) *p++ = byt;
48 /* void *memccpy (void *s1, const void *s2, cell_t c, size_t n); */
49 void *pfCopyMemory( void *s1, const void *s2, cell_t n)
52 const uint8_t *p2 = s2;
53 while( (n--) > 0) *p1++ = *p2++;
57 #endif /* PF_NO_CLIB */
59 char pfCharToUpper( char c )
61 return (char) ( ((c>='a') && (c<='z')) ? (c - ('a' - 'A')) : c );
64 char pfCharToLower( char c )
66 return (char) ( ((c>='A') && (c<='Z')) ? (c + ('a' - 'A')) : c );