False-positive, uninitialized variable

[Daniel]

False-positive occurs when sizeof() is used in for loop to initialize a buffer.

(warning) Uninitialized variable: buffer [uninitvar]

unsigned8 buffer[8];
unsigned32 u32, sum = 0;

for(u32 = 0; u32 < sizeof(buffer); u32++) {
    buffer[u32] = u32;
}

for(u32=0; u32 < sizeof(buffer); u32++) {
    sum += buffer[u32];
}

[CHR]

Thanks for reporting, I've added your example to this ticket: https://trac.cppcheck.net/ticket/11305

[CHR]

It's a different issue after all. The warning disappears if the type definition is visible. e.g. with typedef unsigned char unsigned8;.

[Daniel]

Interesting. I included the header file that has the typedef. Is there any way to debug why the header information is not being loaded for the c file?

[Daniel]

I included the header file with the -I and the problem is resolved. thanks.