What does pragma comment lib do?

What does pragma comment lib do?

3 Answers. That pragma is used to link against the specified . lib file. This is an alternative to specifying the library in the external dependencies field in project settings.

What is #pragma message?

Description. Use #pragma message to specify a user-defined message within your program code. The first form requires that the text consist of one or more string constants, and the message must be enclosed in parentheses.

What is Winmm lib?

winmm.lib is the import library for Multimedia API: http://msdn.microsoft.com/en-us/library/windows/desktop/dd743883.aspx. ws2_32.lib is the import library for WinSock API: http://msdn.microsoft.com/en-us/library/windows/desktop/ms740673.aspx.

How does Pragma once work?

The use of #pragma once can reduce build times, as the compiler won’t open and read the file again after the first #include of the file in the translation unit. It’s called the multiple-include optimization.

What is #pragma comment Lib Ws2_32 lib?

The #pragma comment indicates to the linker that the Ws2_32. lib file is needed. Begin programming the Winsock application. Use the Winsock API by including the Winsock 2 header files. The Winsock2.

What is the meaning of pragma?

A pragma is a compiler directive that allows you to provide additional information to the compiler. This information can change compilation details that are not otherwise under your control. For example, the pack pragma affects the layout of data within a structure. Compiler pragmas are also called directives.

Why is pragma used?

The preprocessor directive #pragma is used to provide the additional information to the compiler in C/C++ language. This is used by the compiler to provide some special features.

What does pragma stand for?

So, What Does “Pragma” Mean in Programming? # Pragma is short for pragmatic information. So, simple. In plain English, pragmatic is an adjective that means sensible and practical.

How do I fix Winmm DLL?

How to Fix Winmm. dll Errors

1. Restore winmm.
2. Run a virus/malware scan of your entire system.
3. Use System Restore to undo recent system changes.
4. Reinstall the program that uses the winmm.
5. Update the drivers for hardware devices that might be related to winmm.
6. Roll back a driver to a previously installed version if winmm.

What is the use of Winmm DLL?

Static Linking This means that when winmm. dll is loaded, the above files are automatically loaded too. If one of these files is corrupted or missing, winmm. dll won’t be loaded.

Is pragma once bad?

#pragma once has unfixable bugs. It should never be used. If your #include search path is sufficiently complicated, the compiler may be unable to tell the difference between two headers with the same basename (e.g. a/foo.

Is pragma once Portable?

I use it in new code. Clang and GCC both support it, don’t know about other compilers. But think about new compilers – they shouldn’t have to implement non-standard features to compile portable C. #pragma is non-portable.