On the contrary, Swift is compatible with Xcode as Swift v 5.1, the default version of Swift is included in Xcode v 11. So it is clear that they can not be compared with each other. While Xcode is an integrated development environment (IDE) for macOS containing a suite of software development tools to develop software for macOS, iOS, iPadOS, watchOS, and tvOS, Swift is a general-purpose, multi-paradigm, compiled programming language developed for iOS, macOS, watchOS, tvOS, Linux, and z/OS. To make that as safe as possible, ensure that directory src/ is in the include search path.Xcode and Swift are two different products developed by Apple for macOS, iOS, iPadOS, watchOS, and tvOS. For example, put string.h in src/myapp/, and include it as #include "myapp/string.h" One version of that would be to put them in a subdirectory that will lend its name as a prefix. Your best bet is to avoid header names that collide with standard header names. That's a bit wild, though - I think it's better to interpret "uniquely" in light of the implementation-defined method for locating headers. Depending on how one construes "uniquely", one might claim that C does not define any behavior at all in the situation you describe, on the basis that you have not uniquely identified the header you want to include. Moreover, C specifies behavior only for the case that the given header name uniquely identifies a file to include. It requires only that if the implementation-defined mechanism used for resolving double-quoted includes fails, the compiler must fall back on the implementation-defined method used for resolving angle-bracketed includes. In particular, although it is common for implementations to perform some kind of relative search to find a file specified using the double-quoted include syntax, C does not require that. That's the case for both forms of #include directive. That includes whether any user-specified include paths (if even supported) are searched before, after, or instead of any default paths. The paths searched to satisfy an #include directive and the order in which they are searched are implementation defined. My local string.h file is located at ruby/api/string.h relative to the include path in my User Header Search Path. Is this some Xcode/OSX thing where system includes search the path of the including file first? The config is defined in the project and I've made sure the targets doesn't override this. I also set "Always Search User Paths" to No - which according to the docs says that the system paths should be searched first:īut yet the #include seem to be treated as #include "string.h" for some reason. In the Xcode project I have made sure to set up my own paths under "User Header Search Paths" - Xcode expand to the correct path. Under my Visual Studio project this still resolves file, the system paths are searched first. However, in the same folder as the file that does this there is also a file that is named string.h. I'm running into an issue where in a file that needs to include #include. I'm trying to build a project I have done for Windows, Visual Studio under OSX using Xcode 6.1.1.
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