+#include <stdio.h>
+#include <stdlib.h>
+
+int main(int argc,char *argv[]) {
+ char hex_char[10];
+ sprintf(hex_char,"0x%s",argv[1]);
+ printf("%s (dec) -> %x (hex)\n",argv[1],atoi(argv[1]));
+ printf("%s (hex) -> %ld (dec)\n",argv[1],strtol(hex_char,NULL,0));
+ return 1;
+}
+