From 039a2f2755e0115b0339fea56d97fd90c4bbc951 Mon Sep 17 00:00:00 2001
From: Hunter Kvalevog <hunter@kvog.sh>
Date: Thu, 11 Sep 2025 21:12:26 -0500
Subject:

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++++
+title = 'C/C++'
++++
+
+* [Preprocessor Definitions](#preprocessor-definitions)
+  * [Platform detection](#platform-detection)
+  * [Compiler detection](#compiler-detection)
+  * [Architecture detection](#architecture-detection)
+* [Standard Headers](#standard-headers)
+
+## Preprocessor Definitions
+
+* [predef wiki](https://github.com/cpredef/predef)
+
+### Platform detection
+```
+#ifdef _WIN32
+  // Windows
+#endif
+
+#ifdef __APPLE__
+  // Apple
+
+  #include <TargetConditionals.h>
+  #idef TARGET_OS_OSX
+    // macOS
+  #elif TARGET_OS_IPHONE
+    // Some kind of mobile device
+    #if TARGET_OS_MACCATALYST
+      // Mac Catalyst - iOS app on macOS
+    #elif TARGET_OS_VISION
+      // visionOS
+    #elif TARGET_OS_TV
+      // tvOS
+    #else
+      // iOS
+    #endif
+  #endif // TARGET_OS_OSX
+#endif // __APPLE__
+
+#ifdef __linux__
+  // Linux
+#endif
+
+```
+
+### Compiler detection
+```
+#ifdef __GNUC__
+  // GCC
+#endif
+
+#ifdef __clang__
+  // clang
+#endif
+
+#ifdef _MSC_VER
+  // Visual C++
+#endif
+```
+
+### Architecture detection
+```
+#if (defined(_MSC_VER) && _M_X64) || (defined(__GNUC__) && __amd64__)
+  // x86-64
+#endif
+
+#if (defined(_MSC_VER) && _M_ARM64) || (defined(__GNUC__) && __aarch64__)
+  // arm64
+#endif
+```
+
+## Standard Headers
+
+* [C standard headers](https://en.cppreference.com/w/c/header.html)
+* [C++ standard headers](https://en.cppreference.com/w/cpp/header.html)
+#
+* [assert.h](https://en.cppreference.com/w/c/header/assert.html)
+* [complex.h](https://en.cppreference.com/w/c/header/complex.html)
+* [ctype.h](https://en.cppreference.com/w/c/header/ctype.html)
+* [errno.h](https://en.cppreference.com/w/c/header/errno.html)
+* [fenv.h](https://en.cppreference.com/w/c/header/fenv.html)
+* [float.h](https://en.cppreference.com/w/c/header/float.html)
+* [inttypes.h](https://en.cppreference.com/w/c/header/inttypes.html)
+* [iso646.h](https://en.cppreference.com/w/c/header/iso646.html)
+* [limits.h](https://en.cppreference.com/w/c/header/limits.html)
+* [locale.h](https://en.cppreference.com/w/c/header/locale.html)
+* [math.h](https://en.cppreference.com/w/c/header/math.html)
+* [setjmp.h](https://en.cppreference.com/w/c/header/setjmp.html)
+* [signal.h](https://en.cppreference.com/w/c/header/signal.html)
+* [stdalign.h](https://en.cppreference.com/w/c/header/stdalign.html)
+* [stdarg.h](https://en.cppreference.com/w/c/header/stdarg.html)
+* [stdatomic.h](https://en.cppreference.com/w/c/header/stdatomic.html)
+* [stdbit.h](https://en.cppreference.com/w/c/header/stdbit.html)
+* [stdbool.h](https://en.cppreference.com/w/c/header/stdbool.html)
+* [stdckdint.h](https://en.cppreference.com/w/c/header/stdckdint.html)
+* [stddef.h](https://en.cppreference.com/w/c/header/stddef.html)
+* [stdint.h](https://en.cppreference.com/w/c/header/stdint.html)
+* [stdio.h](https://en.cppreference.com/w/c/header/stdio.html)
+* [stdlib.h](https://en.cppreference.com/w/c/header/stdlib.html)
+* [stdmchar.h](https://en.cppreference.com/w/c/header/stdmchar.html)
+* [stdnoreturn.h](https://en.cppreference.com/w/c/header/stdnoreturn.html)
+* [string.h](https://en.cppreference.com/w/c/header/string.html)
+* [tgmath.h](https://en.cppreference.com/w/c/header/tgmath.html)
+* [threads.h](https://en.cppreference.com/w/c/header/threads.html)
+* [time.h](https://en.cppreference.com/w/c/header/time.html)
+* [uchar.h](https://en.cppreference.com/w/c/header/uchar.html)
+* [wchar.h](https://en.cppreference.com/w/c/header/wchar.html)
+* [wctype.h](https://en.cppreference.com/w/c/header/wctype.html)
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