Newbie question: link error about floating numbers (using libcntpr.lib)

NTDEV
1

In my KMDF X64 project , I am using some standard C functions related to floating numbers, such as ceil, floor, and strtod.

If I do not link against libcntpr.lib, I get the following errors:

1>libc_builtin_wrapper.obj : error LNK2001: unresolved external symbol _fltused
1>tiny_application.obj : error LNK2001: unresolved external symbol _fltused
1>libc_builtin_wrapper.obj : error LNK2019: unresolved external symbol isalpha referenced in function isalpha_wrapper
1>libc_builtin_wrapper.obj : error LNK2019: unresolved external symbol isalnum referenced in function isalnum_wrapper
1>libc_builtin_wrapper.obj : error LNK2019: unresolved external symbol isgraph referenced in function isgraph_wrapper
1>libc_builtin_wrapper.obj : error LNK2019: unresolved external symbol strcspn referenced in function strcspn_wrapper
1>libc_builtin_wrapper.obj : error LNK2019: unresolved external symbol strtol referenced in function strtol_wrapper
1>libc_builtin_wrapper.obj : error LNK2019: unresolved external symbol strtoul referenced in function strtoul_wrapper
1>tiny_application.obj : error LNK2001: unresolved external symbol strtoul
1>tiny_application.obj : error LNK2019: unresolved external symbol strtod referenced in function execute_func
1>tiny_runtime_common.obj : error LNK2019: unresolved external symbol strtok referenced in function tiny_runtime_init_tiny
1>tiny_interp_classic.obj : error LNK2019: unresolved external symbol ceil referenced in function tiny_interp_call_func_bytecode
1>tiny_interp_classic.obj : error LNK2019: unresolved external symbol ceilf referenced in function tiny_interp_call_func_bytecode
1>tiny_interp_classic.obj : error LNK2019: unresolved external symbol floor referenced in function tiny_interp_call_func_bytecode
1>tiny_interp_classic.obj : error LNK2019: unresolved external symbol floorf referenced in function tiny_interp_call_func_bytecode

If I link against libcntpr.lib, the errors change to:

1>libcntpr.lib(_atodbl.obj) : error LNK2019: unresolved external symbol _ld12tod referenced in function _atodbl_l
1>libcntpr.lib(_atodbl.obj) : error LNK2019: unresolved external symbol _ld12tof referenced in function _atoflt_l
1>libcntpr.lib(_atodbl.obj) : error LNK2019: unresolved external symbol _ld12told referenced in function _atoldbl_l
1>libcntpr.lib(_atodbl.obj) : error LNK2019: unresolved external symbol __strgtold12_l referenced in function _atodbl_l
1>libcntpr.lib(_atodbl.obj) : error LNK2001: unresolved external symbol __ptmbcinfo
1>libcntpr.lib(_strtod.obj) : error LNK2019: unresolved external symbol _fltin referenced in function _strtod_l

Could someone please advise me on how to handle this situation?

2

The best advise is to not use these functions

3

Thank you for your reply. Unfortunately, I must use these functions. I have come up with alternative methods to solve this problem.

Thank you again.

4

Why do you have to use these functions?

I'm glad you have solved your problem, but it would be wrong to think that functions like these are the only way to perform these operations