Karel Kočí
9f4b4faf47
NuttX defines constants for the sizes of types just as constants directly in the code. The real values depend on compiler and target platform. It is possible that value declared by NuttX header is wrong compared to the compiler configuration. This is more likely in case of floating points. Not all compilers supported by NuttX provide required info through defines and thus it is more generic to specify limits as constants, but in case compiler provides them then it is a good idea to compare. This commit adds such set of comparisons for limits.h and float.h constants. The comparisons were tested with GCC and Clang. They will be ignored in case compiler doesn't provide them. Signed-off-by: Karel Kočí <kkoci@elektroline.cz>
Apache NuttX is a real-time operating system (RTOS) with an emphasis on standards compliance and small footprint. Scalable from 8-bit to 64-bit microcontroller environments, the primary governing standards in NuttX are POSIX and ANSI standards. Additional standard APIs from Unix and other common RTOSs (such as VxWorks) are adopted for functionality not available under these standards, or for functionality that is not appropriate for deeply-embedded environments (such as fork()).
For brevity, many parts of the documentation will refer to Apache NuttX as simply NuttX.
Getting Started
First time on NuttX? Read the Getting Started guide! If you don't have a board available, NuttX has its own simulator that you can run on terminal.
Documentation
You can find the current NuttX documentation on the Documentation Page.
Alternatively, you can build the documentation yourself by following the Documentation Build Instructions.
The old NuttX documentation is still available in the Apache wiki.
Supported Boards
NuttX supports a wide variety of platforms. See the full list on the Supported Platforms page.
Contributing
If you wish to contribute to the NuttX project, read the Contributing guidelines for information on Git usage, coding standard, workflow and the NuttX principles.
License
The code in this repository is under either the Apache 2 license, or a license compatible with the Apache 2 license. See the License Page for more information.