C_bigdecimal_permission denied LD returned 1 exit status

Recently, I have been doing this project in large numbers. Because of the limited range of floating-point numbers, float-type floating-point number has a maximum of 7 decimal digits, if it is defined as float, and the number of input more than 7 bits, the computer will automatically rounding out the excess, the calculation error will be very large, so there is a large number of operations. The input is a string that can be defined to be large, storing each character in an array (the C language does not have a string type, directly defining an array char str[]), and then by converting the character into a number for the corresponding calculation, the following will record my project harvest.

Want to record today permission denied LD returned 1 exit status issue

is to use devc++ to write the menu to use while when the problem, compile screen directly pop-up computer virus intrusion, turn off the code after the change, once again compile the problem, even if the code back to the correct state can not compile, online search, the solution is to turn off anti-virus software.

The reason is because it has been compiled and generated an EXE file, when I modified after recompiling the file to overwrite the original EXE file, this time if my anti-virus software has to the EXE modified protection function, I can no longer compile.

C_bigdecimal_permission denied LD returned 1 exit status