MSVCRT vs UCRT These are two variants of the C standard library on Microsoft Windows. MSVCRT (Microsoft Visual C++ Runtime) is available by default on all Microsoft Windows versions, but due to backwards compatibility issues is stuck in the past, not C99 compatible and is missing some features. It isn’t C99 compatible, for example the … Read more
[I’m the current maintainer of the Native SxS technology at Microsoft] New versions of MSVCRT are released with new versions of Visual Studio, and reflect changes to the C++ toolset. So that programs compiled with versions of VS released after a particular version of Windows continue can work downlevel (such as VS 2008 projects on … Read more
No, you can’t get rid of them, but I was able to statically-link to them by setting the C/C++ > Code Generation > Runtime Library compiler option For Debug: from /MDd to /MTd For Release: from /MD to /MT This removed all the API-MS-WIN-CRT-* and runtime dll references and caused all the CRT code to … Read more
Use _fileno followed by _get_osfhandle. Don’t forget to _close it when you are done. EDIT: it’s not clear to me that _get_osfhandle is supported on WinCE. However the docs for WinCE _fileno say it returns a “file handle” rather than “descriptor”. YMMV but this suggests that you can maybe just use _fileno return value directly … Read more
You definitely should not need the debug version of the CRT if you’re compiling in “release” mode. You can tell they’re the debug versions of the DLLs because they end with a d. More to the point, the debug version is not redistributable, so it’s not as simple as “packaging” it with your executable, or … Read more
Since you don’t want to tell what minimal version of Visual C++ redistributable package you require, here you have the code sample from which you can build this by your own. Please notice that I have no clue, what versions are compatible with what and what lower versions must be installed, I’ll keep this upon … Read more
The only version of the C runtime library which is shipped by Microsoft with most of 32 bit Windows versions is msvcrt.dll. This library provides a typical set of library functions required by C and C++ programs. These include string manipulation, memory allocation, C-style input/output calls, etc. Visual Studio 6.0’s compiler links against this library, … Read more
You get that message when abort() function is called. From MSDN: abort Aborts the current process and returns an error code. void abort( void ); Return Value abort does not return control to the calling process. By default, it terminates the current process and returns an exit code of 3. Remarks By default, the abort … Read more
By dynamically linking with /MD, you are exposed to system updates (for good or ill), your executable can be smaller (since it doesn’t have the library embedded in it), and I believe that at very least the code segment of a DLL is shared amongst all processes that are actively using it (reducing the total … Read more
There are 4 versions of the CRT link libraries present in vc\lib: libcmt.lib: static CRT link library for a release build (/MT) libcmtd.lib: static CRT link library for a debug build (/MTd) msvcrt.lib: import library for the release DLL version of the CRT (/MD) msvcrtd.lib: import library for the debug DLL version of the CRT … Read more