But what if your float value is defined as another macro expression? In this case, you’ll need to use a two-level macro approach to ensure the correct conversion. Consider this example: #include<iostream>#incl
Normally, there aren’t any object files in source code distributions, but you might find some in rare cases when the package maintainer is not permitted to release certain source code and you need to do something special in order to use the object files. In most cases, object (or binary ...
how define make file macros for ifort Subscribe More actions hamid_mosaddeghi Beginner 01-07-2011 12:00 AM 2,341 Views Solved Jump to solution Hi DearsI have problem with define this make file for ifort 11.1 prof , I have dell labtop dual core ispiron 6400, fedora ...
j)c[(i)*ldc+(j)]/* Routine for computing C = A * B + C *//* Create macro to let X( i ) equal the ith element of x */#defineY(i)y[(i)*incx]voidAddDot(int k,float*x,int incx,float*y,float*gamma){/* compute gamma := x' * y + gamma with vectors...
cpp(3): warning C4005: '__CLR_VER' : macro redefinition Assigning a control id to a win32 button Assigning an icon to the WinForms ( C++ ) application Assigning NULL to std::function objects atal error C1083: Cannot open compiler intermediate file ATL related build error in x64 ...
however, the printf function returns an int, which would have the effect of clearing the 24 garbage bits to 0 (typically) in the return register that your other function uses so you don't notice the coding error. I would look for missing header...
Compilers can, of course, define the meaning of certain constructs beyond the requirements of the standard, as a compiler extension. Accessing inactive member of a union - especially when all members are PODs - is indeed unlikely to produce surprises, given that most C++ compilers are also...
macro is used to define a mutable global variable. This macro will ensure that the variable is only initialized when it is first accessed. In our case, we name the variable MUTABLE_GLOBAL_VARIABLE, give it the type Mutex<i32>, and initialize it with the value 42. In the main function,...
You can also define a macro on the command line. For example, to use the clang compiler, try 你还可以在命令行上定义一个宏。 例如,要使用clang编译器,可以尝试执行以下命令: make CC=clang Here, make uses your definition of CC instead of its default compiler, cc. Command-line macros come in...
Finally, there’s alsoLazy Static, currently the most popular crate for initialization of global variables. It uses a macro with a small syntax extension (static ref) to define global variables. Here’s the same example again, translated fromonce_celltolazy_static: ...