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Olá pessoal, dessa vez venho aqui com um conversor de Hexadecimal pra Decimal.
Obrigado, 
Código:
#include<stdio.h>
#include<stdlib.h>
#include<conio.h>
int getHex (char c) {
char hex2[] = "123456789ABCDEF";
int i = 0;
while(hex2[i] != c) {
i++;
}
i += 1;
return i;
}
void strcopy (char *str1, char *str2) {
while(*str2) {
*str1 = *str2;
str1++;
str2++;
}
*str1 = '\0';
}
int strl(char *str) {
int i = 0;
while(*str) {
str++;
i++;
}
return i;
}
int eleva (int i) {
int i2 = 1;
int anterior = 16;
if(i == 0) {
return 1;
}
while(i2 < i) {
anterior = 16 * anterior;
i2 ++ ;
}
return anterior;
}
void gh(void) {
system("cls");
int i = 0;
char *banner[] = {"##################payl04d######################\n\n",
"Feito por #payL04d em especial ao GH ( Guia do Hacker ) !\n\n",
"##################payL04d######################\n\n"};
while (i < 3) {
printf("%s",banner[i]);
i ++ ;
}
}
int main(int argc, char *argv[])
{
char *hex;
int i = strl(argv[1]);
int i2;
int i3;
int i4;
int i5 = 0;
int i6 = 0;
gh();
hex = malloc((i + 1) * sizeof(char));
strcopy(hex, argv[1]);
i2 = i;
i -= 1;
while(i2 > 0) {
i3 = getHex (hex[i6]);
i4 = i3 * (eleva(i) );
// printf("i : %d -->",eleva(i));
i5 += i4;
//printf("%d\n",i5);
i -- ;
i2 -- ;
i6 ++ ;
}
printf("\n\nEM DECIMAL -- > %d \n",i5);
return 0;
}
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