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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <time.h>
#define POOLSIZE 100000
static char cpool[POOLSIZE];
static char *cpoolp = cpool;
char* get_chararray(int size) {
if (cpoolp + size > cpool + POOLSIZE)
cpoolp = cpool;
char* ret = cpoolp;
cpoolp += size;
return ret;
}
/* Concatinates a and b and returns a different
string. Only use when returned string can be recycled. */
char* cat(char a[], char b[]) {
int len = strlen(a) + strlen(b) + 1;
/* if(len > RET) return "error";
if(len + retindex > RET) retindex = 0;
char* p = ret + retindex;
*/
char *p = get_chararray(len);
int i, j;
i = j = 0;
while ((p[i++] = a[j++]) != '\0')
;
i--;
j = 0;
while ((p[i++] = b[j++]) != '\0')
;
return p;
}
char* itoa(int i) {
if(i == 0) return "0";
char *num = get_chararray(5);
int j;
for (j = 0; j < 5; num[j++] = ' ')
;
num[3] = '0';
int o = 3;
int negative = 0;
if (i < 0) {
negative = 1;
i *= -1;
}
while (o >= 0 && i > 0) {
num[o--] = i % 10 + '0';
i /= 10;
}
if (o >= 0 && negative)
num[o] = '-';
num[4] = '\0';
for (i = 0; num[i] == ' '; i++)
;
return &num[i];
}
//sleep in tenths of a second
int bettersleep(int ds) {
struct timespec tim, tim2;
tim.tv_sec = ds / 10;
tim.tv_nsec = (ds % 10) * 100000000L;
return nanosleep(&tim, &tim2);
}
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