Bugs in fscanf/scanf implemintation: incorrect realization of getting double values?

Question

I am trying to get double values from file using fscanf function. I am running the following code: this is extract from my code:

double some_double;
fscanf(file_name,"%lf", &some_double);

for ex. content of file is "10.5"

in debug mode, I see that was read value == 10.0000

What is it: bad implementation of fscanf function, or my mistake? If second variant - please advice how to fix it? Kindely thnx

Edit

#define nameOfFile "infoOnObjects.txt"
#define stop _asm nop
FILE* file = fopen(nameOfFile, "r");
if (file == NULL)
    throw "error";
double num;
int n = fscanf(file,"%lf", &num);

Answer 1

Check if your locale symbol for decimal divisor is point '.', not comma ','. This issue is valid on some platforms (Ubuntu gcc, for example; while on Windows mingw it doesn't matters).