// Main Entry Point
int main(){
int a = INT_MIN;
//int a = INT_MAX;
char s[255];
itoa3(a, s);
printf("%d is %s\n", a, s);
return 0;
}
void itoa3(int n){
if(n<0){
n = -n;
putchar('-');
}
if(n/10)
itoa3(n/10);
putchar(n%10+'0');
}
void mainx(){
//char s[30];
//char t[30] = "hello\thank\n";
//char es[30];
//escape(s,t);
//printf("%s\n",s);
//cape(s,es);
//printf("%s\n",es);
//printf("%d\n",atoi("-1234x6"));
// 寄存器变量
// 寄存器变量不支持地址访问
register int n = -1234;
//char s[30];
//itob(n,s,8);
//printf("%s\n",s);
itoa3(n);
//testFunction();
}
int main()
{
char s[max];
int n = 0;
int w = 5;
short w1 = 16;
itoa3(n, s, w);
printf("int: %*i itoa3: %s\n", w1, n, s);
n = 21;
itoa3(n, s, w);
printf("int: %*i itoa3: %s\n", w1, n, s);
n = 5234;
itoa3(n, s, w);
printf("int: %*i itoa3: %s\n", w1, n, s);
n = 52344;
itoa3(n, s, w);
printf("int: %*i itoa3: %s\n", w1, n, s);
n = 523440;
itoa3(n, s, w);
printf("int: %*i itoa3: %s\n", w1, n, s);
n = -2147483647;
itoa3(n, s, w);
printf("int: %*i itoa3: %s\n", w1, n, s);
/* largest negative int on this system is -2147483648 */
n = -2147483648;
itoa3(n, s, w);
printf("int: %*i itoa3: %s\n", w1, n, s);
return 0;
}
