whats this warning mean?and how to search keyword...

im running a prog.on linux c BUT keep on gettin warning msgs: Ansii c++ prohibits void* conversion
in the malloc part of the linked list.
ex.pNew = malloc(sizeof(structGNodeType));

im also tryin to make a code that given a keyword it will search for its instances in all the Questions(take note that words in the question are seperated by a space)-my code here runs but doesnt seem to get any match though im pretty sure the keyword i entered has a match.anybody help??

int find(ptrGNode pGame)
{ ptrGNode pTemp;
int nCtr,i,j,k,l,m,nVal;
str70 strTemp;

char sKey[31];
int nFound=0,nWhere;
nCtr =0;
do{printf("\n\n Enter Keyword:>");
scanf("%s",sKey);

if(strlen(sKey)>31)

printf("Keyword must only be 30 characters or less");

}while(strlen(sKey)>31);
if(sKey[0]=='\0')
return(NOT_FOUND);
else
{pTemp=pGame;
j=0;

while(pTemp!=NULL)
{
for(i=0;i<strlen(pTemp->sGame.strQuestions);i++)
{
while(pTemp->sGame.strQuestions[i]!='\0')
{
strTemp[j]=pTemp->sGame.strQuestions[i];
j++;
}
strTemp[j]='\0';

if(!strcmp(strTemp,sKey))
{
nFound=1;
return(nCtr);
}
else
nCtr++;
pTemp=pTemp->pGNext;
}
}
}
if(nFound==1)
nWhere=nCtr;
else
nWhere=NOT_FOUND;

return(nWhere);
}





/*Function: view_Keyword *
* Purpose: this function displays the question matching the keyword *
* Note: Calls the function int find() */

void view_Keyword(ptrGNode pGame,struct_Game sGame)
{ptrGNode pTemp;
int nNum,nChoice;

pTemp=pGame;
do
{printf("\n ~ ~ ~ ~ ~ VIEW KEYWORD ~ ~ ~ ~ ~ \n");
nNum = find(pGame);
if( nNum==-1)

printf("not found!");
else

display_Question(pTemp->sGame);
printf(" Would you like to look up another(1-yes/0-no)?");
scanf("%d",&nChoice);

if(nChoice==1)
view_Keyword(pGame,sGame);
else if(nChoice==0)
view_Question(pGame,sGame);
else
puts(ERROR);
}while(nChoice==1);

new and alloc function return void* pointers.

since your struct/class member pNew likely has a different type you have to explicitly typeconfvert.
Say pNew is a pooiinter to int write:
ex.pNew = (int*) malloc (...);

ive already tried fixin the errors ......already fixed but how come it generateda segmentation fault whats worng with my code or what might have possibly caused it?

segmentation fault seams to indicate that you're accessing data you shouldn't. This points to either pointers or indices.

In your 3.lvl while - loop
while(pTemp->sGame.strQuestions[i]!='\0')
you don't increment 'i' so you got an infinite loop. I don't really understand your code so i can't tell you what the correct version should look like.

Hope it helps