Description Sam 2011-02-03 02:35:43 EST

Build Identifier: 20100917-0705

I downloaded and installed the latest version of Eclipse CDT yesterday. Everything is on the default setting, I havent changed anything.

Now, when I enter an assignment statement (for example), without declaring the variable I'm using it does NOT flag an error. Eg:
main ()
{
 foo = 1 ;
}
So the above line does not get a red underline, even though foo is an undeclared identifier.

Now, if I run the program with Ctrl+F11, the build fails and a red underline finally appears in the editor under the statement foo = 1 ;

But if I now declare the variable foo above the assignment, the red underline still remains visible. Only after I hit Ctrl+F11, does the red line disappear.

The same thing happens with the following code snippet:
int a ;
string * s ;
s = &a ;

Here the last assignment s = &a should be flagged as an error in C++ (because the cast is illegal). However the editor does not flag this error till the code is actually built. And then again, once the editor displays the red underline, it does not disappear even if the assignment is rectified. The underline disappears only after the project is built.


Other observations:

The editor does not flag the error if I merely save the file after entering the erroneous statement.

If I enter a statement with a syntax error, such as "foo = " (without the quotes), the editor flags the error immediately as I type with an orange underline.

Reproducible: Always

Steps to Reproduce:
1.Enter the statement "foo = 1 ;" in the editor without the quotes in main ().
2.BUG: Notice that the editor does not flag the statement as an error.
3.Now build the project.
4.The build fails (as shown on console) because foo is undeclared.
5.Observe that the editor now flags the statement as an error by underlining it in red.
6.Declare the variable above its usage: "int foo ;"
7.BUG: Observe that the editor does not remove the red underline from the statment "foo = 1 ;"
8.Build the project again.
9.Observe that the red underline is now gone.