Programmation en c

Et tu as fait quoi ?

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>

typedef struct Noeud {
char tas;
struct Noeud *suivant;
}noeud;
noeud *premier=NULL;
noeud *p;

void initialise();
void empiler(char x);
char depiler();
int correspond(char , char);

void main()
{

int i;
char nom[100];
noeud *debut,*z,*t;

void initialise();

clrscr();

printf("donner une chaine de caractere\n" );
scanf("%s",&nom);

for(i=0;nom[i]!='\0';i++)
{
if( (nom[i]=='<') || (nom[i]=='.') || (nom[i]=='(') || (nom[i]=='{') || (nom[i]=='[') )

empiler(nom[i]);

else if( (nom[i]=='>') || (nom[i]==',') || (nom[i]==')') || (nom[i]=='}') || (nom[i]==']') )

{

if(1==correspond(nom[i],depiler()))

continue;

else printf("\nerreur\n" );

}

}
printf("\n\nla compilation reussite\n" );

getch();

}

void initialise()

{

noeud *debut,*z;
debut=(struct Noeud *)malloc(sizeof(*debut));
assert(debut!=NULL);
z=(struct Noeud *)malloc(sizeof(*z));
assert(z!=NULL);
debut->suivant=z;
z->tas=0;
z->suivant=z;

}


void empiler(char x)

{

noeud *t;
noeud *debut;
t=(struct Noeud*)malloc(sizeof(*t));
assert(t!=NULL);
t->tas=x;
t->suivant=debut->suivant;
debut->suivant=t;

}

char depiler()

{

char y;
noeud *debut;
noeud *t;
assert(debut!=NULL);
t=debut->suivant;
debut->suivant=t->suivant;
y=t->tas;
free(t);
return(y);

}


int correspond(char e,char l)

{

if(e==l)
return 1;
else
return 0;
}