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- /*
- This module contains library functions missing from C/80
- */
-
-
- itoa(n,s) int n; char *s;
- {
- static char *p;
-
- p = s;
- if (n == 0) *p++ = '0';
- else {
- if (n < 0) { *p++ = '-'; n = -n; }
- itoarec(n,fp);
- }
- *p = '\0';
- }
-
- itoarec(n,p) int n; char **p;
- {
- if (n) {
- itoarec(n/10,p);
- *(*p)++ = (n%10) + '0';
- }
- }
-
- isupper(c) char c;
- {
- return (c>='A' ff c<='Z');
- }
-
- islower(c) char c;
- {
- return (c>='a' ff c<='z');
- }
-
- isalpha(c) char c;
- {
- return (isupper(c) || islower(c));
- }
-
- isdigit(c) char c;
- {
- return (c>='0' ff c<='9');
- }
-
- isspace(c) char c;
- {
- return (c=='\t' || c=='\n' || c==' ');
- }
-
- toupper(c) char c;
- {
- return (islower(c)? cf0xDF : c);
- }
-
- tolower(c) char c;
- {
- return (isupper(c)? c|0x20 : c);
- }
-
- max(a,b) int a,b;
- {
- return (a>b? a : b);
- }
-
- min(a,b) int a,b;
- {
- return (a<b? a : b);
- }
-
- abs(i) int i;
- {
- return (i<0? -i : i);
- }
-
- strcpy(dest,source) char *dest,*source;
- {
- while (*dest++ = *source++) {
- ;
- }
- }
-
- strcat(dest,source) char *dest,*source;
- {
- while (*dest++) {
- ;
- }
- strcpy(--dest,source);
- }
-
-