File not compiling due to syntax error on ';' (semi-colon) [closed] - visual-c++

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Closed 10 years ago.
My Visual Studio 2010 does not allow my file to be compiled when I use the semi-colon characters (";")/ It says there is an error.
But not all of the semi-colons, just one of them.
1>------ Build started: Project: waynekwa, Configuration: Debug Win32 ------
1>Build started 7/11/2012 11:58:46 PM.
1>InitializeBuildStatus:
1> Touching "Debug\waynekwa.unsuccessfulbuild".
1>ClCompile:
1> waynekwa.cpp
1>c:\users\asus\documents\visual studio 2010\projects\waynekwa\waynekwa\waynekwa.cpp(6): warning C4996: 'scanf': This function or variable may be unsafe. Consider using scanf_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.
1> c:\program files (x86)\microsoft visual studio 10.0\vc\include\stdio.h(304) : see declaration of 'scanf'
1>c:\users\asus\documents\visual studio 2010\projects\waynekwa\waynekwa\waynekwa.cpp(11): error C2059: syntax error : ';'
1>c:\users\asus\documents\visual studio 2010\projects\waynekwa\waynekwa\waynekwa.cpp(11): error C2143: syntax error : missing ';' before ')'
1>c:\users\asus\documents\visual studio 2010\projects\waynekwa\waynekwa\waynekwa.cpp(11): error C2143: syntax error : missing ';' before ')'
1>c:\users\asus\documents\visual studio 2010\projects\waynekwa\waynekwa\waynekwa.cpp(12): error C2143: syntax error : missing ';' before '{'
1>c:\users\asus\documents\visual studio 2010\projects\waynekwa\waynekwa\waynekwa.cpp(27): fatal error C1075: end of file found before the left brace '{' at
'c:\users\asus\documents\visual studio 2010\projects\waynekwa\waynekwa\waynekwa.cpp(3)' was matched
1>
1>Build FAILED.
1>
1>Time Elapsed 00:00:02.14
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
The code:
#include<stdio.h>
int main(void) {
int num,x,y=0;
printf("enter range:");
scanf("%i",&num);
for(x=1;x<=;x++) {
if(num%x==0) {
y++;
}
if(y==2) {
printf("it is prime number.\n");
} else {
printf("it is not prime number.\n");
}
return 0;
}

Answer 1

It looks like you forgot a closing bracket for your for loop. You need one between the else of the second if and your return. This is the cause of the second actual error, fatal error C1075: end of file found before the left brace '{'.
Also, for (x = 1; x <= ; x++) is not a valid for loop. The second part x <= ; is missing a value to compare against. For example, x <= 10;. That's where the syntax error error C2059: syntax error : ';' is coming from. The other complaints about semicolons are due to this error.
Edit:
Also, your assignment int num,x,y=0; is difficult to understand. I recommend you clean it up, either by putting on multiple lines or by chain assigning.

Answer 2

Given the information you have given us, you probably need to add or remove one or more ; then add a } somewhere after line 3. But you also may not need to do these things.

Answer 3

The first thing that comes to mind is the line:
for(x=1;x<=;x++) {
you have a x<= just sitting there alone, you have to put a value there.
I'm guessing that you meant:
for(x=1; x<=num; x++) {
But other than that, no other syntax errors are jumping out at me.