string insert

[bob323]

Anyone ever coded a string insert function?
I tried, but it is getting way to messy any ideas?

char name [20];
char *p;

strcpy(name, "Bob Jackson");
p = strchar(name, " ");

insert the name say "Albert" so name is now "Bob Albert Jackson"

[jim mcnamara]

Try:

[code]
// put insert into dest at pos position +1 ie., - keep pos
void insert(char *dest, char *insert, char pos){
char *buf;
char *s;
int i;
char tmp[132];
if (strchr(dest,pos)==NULL) return;
memset(tmp,'\0',sizeof(tmp) );
strcpy(tmp,dest);
buf = (char *)strchr(tmp,pos);
buf++;
s =insert;
for(i=0;i<strlen(insert);i++) *buf++ = *s++;
s= strchr(dest,pos);
s++;
while (*s!='\0') *buf++ = *s++;
*s='\0'; // make string null terminated
strcpy(dest,tmp);
}

[kedaman]

Well, this thing you can use on various type of arrays

template <class T>
T* insert(T* ds,T* de,const T* is,const T* ie){
    void* i=((void*)ie-(void*)is);
    memcpy((void*)ds+i,(void*)ds,(void*)de-(void*)ds);
    return memcpy((void*)ds,(void*)is,i);
}; 

[kedaman]

ok, here's another one i just made, it supports deep copying (using the copyconstructor of a class)

template <class T>
T* deepinsert(T* ds,T* de,const T* is,const T* ie){
    for(T* i=ds,T* j=ds+ie-is;i<=de;*j++=*i++);
    for(i=ds,j=is;j<=ie;*i++=*j++);
    return ds;
}; 

[kedaman]

and for C style strings, you can use this shortcut:

char* insert(char* ds,char* is){   return insert(ds,ds+strlen(ds)-1,is,is+strlen(is)-1); };