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- Dictionaryflag/flaɡ/
noun
- 1. a piece of cloth or similar material, typically oblong or square, attachable by one edge to a pole or rope and used as the symbol or emblem of a country or institution or as a decoration during public festivities: "the American flag"
- 2. a small piece of cloth attached at one edge to a pole and used as a marker or signal in various sports: "jumped the starter's flag, did he?"
verb
- 1. mark (an item) for attention or treatment in a specified way: "“greatfully” would be flagged as a misspelling of “gratefully.”"
- 2. (of an official in football, soccer, and other sports) raise or throw a flag to indicate a breach of the rules.
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Jun 7, 2010 · You never define it "by hand" in your source code. It is defined in one of these ways: as a commandline preprocessor/compiler flag (like g++ -D _WIN32) or it is predefined by compiler itself (most of Windows compilers predefine _WIN32, and sometimes other like WIN32 or _WIN32_ too.
Jan 26, 2012 · Applying pre-processor flags (Or any compiler flag) globally can create hidden dependencies in your build. Essentially think of add_compile_definitions as globals in C/C++. Sometimes you need them, but be careful.
Nov 13, 2018 · Where are you having trouble? Also see Passing a gcc flag through makefile, Append compile flags to CFLAGS and CXXFLAGS while configuration/make, How to add compile flag -g to a make file?, Allowing users to override CFLAGS, CXXFLAGS and friends, Including a #define in all .c source files at compile time, Precedence of -D MACRO and #define ...
#define ANALYZE(variable, flag) ((Something.##variable) & (flag)) ## is simply not needed as you are not making any new identifier. In fact, compiler issues "error: pasting "."
Sep 19, 2009 · Note if you are working in Windows environment, there is a DEFINE_ENUM_FLAG_OPERATORS macro defined in winnt.h that does the job for you. So in this case, you can do this: enum AnimalFlags { HasClaws = 1, CanFly =2, EatsFish = 4, Endangered = 8 }; DEFINE_ENUM_FLAG_OPERATORS(AnimalFlags) seahawk.flags = CanFly | EatsFish | Endangered;
Aug 3, 2012 · I am using the arm-linux-androideabi-g++ compiler. When I try to compile a simple "Hello, World!" program it compiles fine. When I test it by adding a simple exception handling in that code it work...
Apr 26, 2012 · It is equivalent to adding the statement #define LINUX 1 in the source code of the file that is being compiled. It does not have any effect on other compilation flags. The reason for this is it's an easy way to enable #ifdef statements in the code. So you can have code that says:
Jun 20, 2016 · #define IDENTIFIER SUBSTITUTED_CODE In your postulated use... #define FLAG_FAILED:1 The identifier contains the colon, which makes it invalid. You could do something like this: #define FLAG_FAILED int flag_failed :1 struct X { char a; FLAG_FAILED; int b; ... }; It's not clear why you're considering using a define for the bit field anyway.
Aug 12, 2008 · Define and Declare a Flags Attribute. A Flags is an attribute that allows us to represent an enum as a collection of values rather than a single value. So, let’s see how we can implement the Flags attribute on enumeration: [Flags] public enum UserType { Customer = 1, Driver = 2, Admin = 4, }
Yes, you can append compiler and linker options. But there are two things you have to differentiate in CMake: the first call to generate the build environment and all consecutive calls for regenerating that build environment after changes to your CMakeLists.txt files or dependencies.
