[TechNoFear]

look at the string functions like

strstr() (or lstrstr() )
strcmp() (or lstrcmp() )

ect.

Post some code and we will correct.



It may be better to write the file in binary. Unless you want to be able to read the actual file (in notepad ect)

In binary you can create a structure.
Then you can read and write the file using the structure. Much simpler than a text file as the size of each record is constant (which is not true for a text file).

[clone]

Originally posted by TechNoFear
look at the string functions like

strstr() (or lstrstr() )
strcmp() (or lstrcmp() )

ect.

Post some code and we will correct.

Hi TechNoFear ^_^
yeah...thanks a lot...I have solved it...
I use strcmp to compare the string
but now, I have another problem....
it's the switch case...

while (choice != 4){
switch (choice)
case 1:

while ( fscanf(filePtr, "%s %s %s", &my_data.gureiI_id, &my_data.fans_id, &my_data.height) != EOF)
{
strcmp( my_data.gurei_id, "HAHA");
printf("Hello_HAHA\n");
}
break;


case 2:
printf("Hello_HIHI\n");
break;

when I disabled case 2, the program can run very well, but once i enable the case 2...when i compile that time, an error pops up saying that it is an illegal case...
do you know why is this happening?

thanks

[clone]

can’t we use do while inside case?

[ClayDowling]

It's best not to do very much inside of a switch statement other than jump to another portion of the program. I'm not sure what the reasons are, but if you ever step through a program's execution while it's in a switch statement, you'll see it jumping around a bit. Better to call a function that will do what you want.