diff --git a/src/unity_config.h b/src/unity_config.h new file mode 100644 index 0000000000000000000000000000000000000000..45c1018eaf9606a71ffd39dcd1753bbc1e83581c --- /dev/null +++ b/src/unity_config.h @@ -0,0 +1,257 @@ +/* Unity Configuration + * As of May 11th, 2016 at ThrowTheSwitch/Unity commit 837c529 + * See Also: Unity/docs/UnityConfigurationGuide.pdf + * + * Unity is designed to run on almost anything that is targeted by a C compiler. + * It would be awesome if this could be done with zero configuration. While + * there are some targets that come close to this dream, it is sadly not + * universal. It is likely that you are going to need at least a couple of the + * configuration options described in this document. + * + * All of Unity's configuration options are `#defines`. Most of these are simple + * definitions. A couple are macros with arguments. They live inside the + * unity_internals.h header file. We don't necessarily recommend opening that + * file unless you really need to. That file is proof that a cross-platform + * library is challenging to build. From a more positive perspective, it is also + * proof that a great deal of complexity can be centralized primarily to one + * place in order to provide a more consistent and simple experience elsewhere. + * + * Using These Options + * It doesn't matter if you're using a target-specific compiler and a simulator + * or a native compiler. In either case, you've got a couple choices for + * configuring these options: + * + * 1. Because these options are specified via C defines, you can pass most of + * these options to your compiler through command line compiler flags. Even + * if you're using an embedded target that forces you to use their + * overbearing IDE for all configuration, there will be a place somewhere in + * your project to configure defines for your compiler. + * 2. You can create a custom `unity_config.h` configuration file (present in + * your toolchain's search paths). In this file, you will list definitions + * and macros specific to your target. All you must do is define + * `UNITY_INCLUDE_CONFIG_H` and Unity will rely on `unity_config.h` for any + * further definitions it may need. + */ + +#ifndef UNITY_CONFIG_H +#define UNITY_CONFIG_H + +#ifdef __cplusplus +extern "C" +{ +#endif + +/* ************************* AUTOMATIC INTEGER TYPES *************************** + * C's concept of an integer varies from target to target. The C Standard has + * rules about the `int` matching the register size of the target + * microprocessor. It has rules about the `int` and how its size relates to + * other integer types. An `int` on one target might be 16 bits while on another + * target it might be 64. There are more specific types in compilers compliant + * with C99 or later, but that's certainly not every compiler you are likely to + * encounter. Therefore, Unity has a number of features for helping to adjust + * itself to match your required integer sizes. It starts off by trying to do it + * automatically. + **************************************************************************** */ + +/* The first thing that Unity does to guess your types is check `stdint.h`. This + * file includes defines like `UINT_MAX` that Unity can make use of to learn a + * lot about your system. It's possible you don't want it to do this or it's + * possible that your system doesn't support `stdint.h`. If that's the case, + * you're going to want to define this. That way, Unity will know to skip the + * inclusion of this file and you won't be left with a compiler error. + */ +/* #define UNITY_EXCLUDE_STDINT_H */ + +/* The second attempt to guess your types is to check `limits.h`. Some compilers + * that don't support `stdint.h` could include `limits.h` instead. If you don't + * want Unity to check this file either, define this to make it skip the + * inclusion. + */ +/* #define UNITY_EXCLUDE_LIMITS_H */ + +/* The third and final attempt to guess your types is to use the `sizeof()` + * operator. Even if the first two options don't work, this one covers most + * cases. There _is_ a rare compiler or two out there that doesn't support + * `sizeof()` in the preprocessing stage, though. For these, you have the + * ability to disable this feature as well. + */ +/* #define UNITY_EXCLUDE_SIZEOF */ + + +/* ********************** MANUAL INTEGER TYPE DEFINITION *********************** + * If you've disabled all of the automatic options above, you're going to have + * to do the configuration yourself. There are just a handful of defines that + * you are going to specify if you don't like the defaults. + **************************************************************************** */ + + /* Define this to be the number of bits an `int` takes up on your system. The + * default, if not auto-detected, is 32 bits. + * + * Example: + */ +/* #define UNITY_INT_WIDTH 16 */ + +/* Define this to be the number of bits a `long` takes up on your system. The + * default, if not autodetected, is 32 bits. This is used to figure out what + * kind of 64-bit support your system can handle. Does it need to specify a + * `long` or a `long long` to get a 64-bit value. On 16-bit systems, this option + * is going to be ignored. + * + * Example: + */ +/* #define UNITY_LONG_WIDTH 16 */ + +/* Define this to be the number of bits a pointer takes up on your system. The + * default, if not autodetected, is 32-bits. If you're getting ugly compiler + * warnings about casting from pointers, this is the one to look at. + * + * Example: + */ +/* #define UNITY_POINTER_WIDTH 64 */ + +/* Unity will automatically include 64-bit support if it auto-detects it, or if + * your `int`, `long`, or pointer widths are greater than 32-bits. Define this + * to enable 64-bit support if none of the other options already did it for you. + * There can be a significant size and speed impact to enabling 64-bit support + * on small targets, so don't define it if you don't need it. + */ +/* #define UNITY_INCLUDE_64 */ + + +/* *************************** FLOATING POINT TYPES **************************** + * In the embedded world, it's not uncommon for targets to have no support for + * floating point operations at all or to have support that is limited to only + * single precision. We are able to guess integer sizes on the fly because + * integers are always available in at least one size. Floating point, on the + * other hand, is sometimes not available at all. Trying to include `float.h` on + * these platforms would result in an error. This leaves manual configuration as + * the only option. + **************************************************************************** */ + + /* By default, Unity guesses that you will want single precision floating point + * support, but not double precision. It's easy to change either of these using + * the include and exclude options here. You may include neither, either, or + * both, as suits your needs. + */ +/* #define UNITY_INCLUDE_FLOAT */ +/* #define UNITY_EXCLUDE_FLOAT */ +/* #define UNITY_INCLUDE_DOUBLE */ +/* #define UNITY_EXCLUDE_DOUBLE */ + +/* For features that are enabled, the following floating point options also + * become available. + */ + +/* Unity aims for as small of a footprint as possible and avoids most standard + * library calls (some embedded platforms don't have a standard library!). + * Because of this, its routines for printing integer values are minimalist and + * hand-coded. To keep Unity universal, though, we chose to _not_ develop our + * own floating point print routines. Instead, the display of floating point + * values during a failure are optional. By default, Unity will not print the + * actual results of floating point assertion failure. So a failed assertion + * will produce a message like `"Values Not Within Delta"`. If you would like + * verbose failure messages for floating point assertions, use these options to + * give more explicit failure messages (e.g. `"Expected 4.56 Was 4.68"`). Note + * that this feature requires the use of `sprintf` so might not be desirable in + * all cases. + */ +/* #define UNITY_FLOAT_VERBOSE */ +/* #define UNITY_DOUBLE_VERBOSE */ + +/* If enabled, Unity assumes you want your `FLOAT` asserts to compare standard C + * floats. If your compiler supports a specialty floating point type, you can + * always override this behavior by using this definition. + * + * Example: + */ +/* #define UNITY_FLOAT_TYPE float16_t */ + +/* If enabled, Unity assumes you want your `DOUBLE` asserts to compare standard + * C doubles. If you would like to change this, you can specify something else + * by using this option. For example, defining `UNITY_DOUBLE_TYPE` to `long + * double` could enable gargantuan floating point types on your 64-bit processor + * instead of the standard `double`. + * + * Example: + */ +/* #define UNITY_DOUBLE_TYPE long double */ + +/* If you look up `UNITY_ASSERT_EQUAL_FLOAT` and `UNITY_ASSERT_EQUAL_DOUBLE` as + * documented in the Unity Assertion Guide, you will learn that they are not + * really asserting that two values are equal but rather that two values are + * "close enough" to equal. "Close enough" is controlled by these precision + * configuration options. If you are working with 32-bit floats and/or 64-bit + * doubles (the normal on most processors), you should have no need to change + * these options. They are both set to give you approximately 1 significant bit + * in either direction. The float precision is 0.00001 while the double is + * 10^-12. For further details on how this works, see the appendix of the Unity + * Assertion Guide. + * + * Example: + */ +/* #define UNITY_FLOAT_PRECISION 0.001f */ +/* #define UNITY_DOUBLE_PRECISION 0.001f */ + + +/* *************************** TOOLSET CUSTOMIZATION *************************** + * In addition to the options listed above, there are a number of other options + * which will come in handy to customize Unity's behavior for your specific + * toolchain. It is possible that you may not need to touch any of these but + * certain platforms, particularly those running in simulators, may need to jump + * through extra hoops to operate properly. These macros will help in those + * situations. + **************************************************************************** */ + +/* By default, Unity prints its results to `stdout` as it runs. This works + * perfectly fine in most situations where you are using a native compiler for + * testing. It works on some simulators as well so long as they have `stdout` + * routed back to the command line. There are times, however, where the + * simulator will lack support for dumping results or you will want to route + * results elsewhere for other reasons. In these cases, you should define the + * `UNITY_OUTPUT_CHAR` macro. This macro accepts a single character at a time + * (as an `int`, since this is the parameter type of the standard C `putchar` + * function most commonly used). You may replace this with whatever function + * call you like. + * + * Example: + * Say you are forced to run your test suite on an embedded processor with no + * `stdout` option. You decide to route your test result output to a custom + * serial `RS232_putc()` function you wrote like thus: + */ +/* #define UNITY_OUTPUT_CHAR(a) RS232_putc(a) */ +/* #define UNITY_OUTPUT_FLUSH() RS232_config(115200,1,8,0) */ +/* #define UNITY_OUTPUT_START() RS232_flush() */ +/* #define UNITY_OUTPUT_COMPLETE() RS232_close() */ + +/* For some targets, Unity can make the otherwise required `setUp()` and + * `tearDown()` functions optional. This is a nice convenience for test writers + * since `setUp` and `tearDown` don't often actually _do_ anything. If you're + * using gcc or clang, this option is automatically defined for you. Other + * compilers can also support this behavior, if they support a C feature called + * weak functions. A weak function is a function that is compiled into your + * executable _unless_ a non-weak version of the same function is defined + * elsewhere. If a non-weak version is found, the weak version is ignored as if + * it never existed. If your compiler supports this feature, you can let Unity + * know by defining `UNITY_SUPPORT_WEAK` as the function attributes that would + * need to be applied to identify a function as weak. If your compiler lacks + * support for weak functions, you will always need to define `setUp` and + * `tearDown` functions (though they can be and often will be just empty). The + * most common options for this feature are: + */ +/* #define UNITY_SUPPORT_WEAK weak */ +/* #define UNITY_SUPPORT_WEAK __attribute__((weak)) */ + +/* Some compilers require a custom attribute to be assigned to pointers, like + * `near` or `far`. In these cases, you can give Unity a safe default for these + * by defining this option with the attribute you would like. + * + * Example: + */ +/* #define UNITY_PTR_ATTRIBUTE __attribute__((far)) */ +/* #define UNITY_PTR_ATTRIBUTE near */ + +#ifdef __cplusplus +} +#endif /* extern "C" */ + +#endif /* UNITY_CONFIG_H */