v1.0.3

This adds the wonderful possibility to construct UFix and SFix types from constant integers, with the size of the fixed point math type automatically determined by FixMath, thanks to @tfry-git !

For example:

auto a = UFixAuto<3>(); // leads to a UFix<2,0>
auto b = SFixAuto<15>(); // leads to a SFix<4,0>

What's Changed

• Draft: better construction of UFix from compile time constants by @tfry-git in #12

Full Changelog: v1.0.2...v1.0.3

v1.0.2

Small bugfix in the auto-adjust of NI for SFix types.

What's Changed

• Fix #13 by @tfry-git in #14

Full Changelog: v1.0.1...v1.0.2

v1.0.1

New release of FixMath. In brief:

• constexpr are now used in a lot of places, allowoing for more optimization from the compiler and automatic tests that the library behaves correctly, thanks to @tfry-git
• invAccurate is now accurate, the old behavior has been replaced with invFull
• an helper function has been added to help asserting the size of a FixMath type at compile time. auto is encouraged but this gives a way to prevent unexpected (for the programmer) type promotion. Thanks to @tfry-git .
• Bug fix
• Added possibility to convert a FixMath to an C++ int (or int8_t, int16_t, uint8_t, etc) by truncating the fractional part.

Below a more automatic changelog.

What's Changed

• Adding asInt() by @tomcombriat in #3
• Use constexprs where possible by @tfry-git in #4
• Fixes #7 by @tomcombriat in #8
• Add helper function to guard against unexpected size inflation. by @tfry-git in #9
• New invAccurate by @tomcombriat in #6

New Contributors

• @tomcombriat made their first contribution in #3

Full Changelog: v1.0.0...v1.0.1

Initial Release of FixMath

Initial release of FixMath, a fixed point arithmetic library targeted for Arduino and cie boards.

This provides an alternative to float and double types, while using integer type under the hood which provides a performance gain for microcontrollers lacking a floating point unit.

Promotion of the internal types is processed internally and at compile time. Using standard operations between FixMath types ensures that precision is kept and overflows are avoided. FixMath tries to be conservative and do not promote types when not needed.

What's Changed

• Add examples and build workflow by @tfry-git in #1

New Contributors

• @tfry-git made their first contribution in #1

Full Changelog: https://github.com/tomcombriat/FixMath/commits/v1.0.0