// stringhe.c
# include "alfa.h"

void Concatena (Char U, Char Formato, ...)
{va_list arg;
va_start(arg,Formato);
vsprintf(U,Formato,arg); va_end(arg);}

void Input (Char A, int n)
{if (n<1) n=1; fgets(A,n+1,stdin);
A=strchr(A,0)-1;
if (*A=='\n') *A=0;}

// Posizione di A in B.
int Pos (Char A, Char B)
{Char X=strstr(B,A);
if (!X) return -1; return X-B;}

int Tu (Char A, Char B)
{if (!A||!B) return 0;
return strcmp(A,B)==0;}

int Tui (Char A, Char B)
{if (!A||!B) return 0;
return strstr(B,A)==B;}