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* tests: Drop an unused includeMatthias Clasen2021-06-281-1/+0
| | | | Now that we aren't using the M_ constants, drop math.h.
* testmatrix.c: use G_SQRT2 insead of M_SQRT2Jordan Petridis2021-06-281-3/+3
| | | | | | | | | | Math implementations are platform dependent, and for example msvc requires a define before enabling the constants [1] Use G_SQRT2 implementation which is independent instead. [1] https://docs.microsoft.com/en-us/cpp/c-runtime-library/math-constants?view=msvc-160
* tests: Add tests for PangoMatrixMatthias Clasen2021-06-281-0/+205