MinGW supports a limited form of weak symbols, with the restriction
that weak/default implementations need to be defined in the same
translation unit they are called from. Strong/overriding symbols
may of course be specified in a different translation unit.
This is simpler and more flexible than embedding C code in the Ruby options
(:suite_setup and :suite_teardown). However, support for :suite_setup and
:suite_teardown is kept for backwards compatibility.
Several configurations are possible:
1. :suite_setup and :suite_teardown options provided and used.
2. :suite_setup and :suite_teardown options not provided (nil):
2a. Weak symbols not supported; suiteSetUp() and suiteTearDown() are not called.
It would be simpler to make user-provided functions mandatory in this case,
but it could break some pre-existing test suites.
2b. Weak symbols are supported and the stub implementations of suiteSetUp() and
suiteTearDown() are called if there are no user-provided functions.
2c. Weak symbols are supported but overridden by user-provided suiteSetUp() and
suiteTearDown() functions.
The existing implementation was not very good:
- It printed all very small values as "0.000000..."
- It did not distinguish positive and negative zero
- In some cases it printed extra garbage digits for single-precision values
(e.g. 3.9e+30 was printed as 3.90000013+30)
Tests have been updated to check that we now match printf("%.6g") for
1,000,000 randomly chosen values, except for rounding of the 6th digit.
This fixes a compiler warning about a lossy conversion from long
unsigned int to int when compiling unity with gcc 6.3.1 and
the options -std=c89 -Wconversion -fsanitize=undefined
This fixes compiler warnings that clang produces with the
-Wdouble-promotion compiler option.
This only happens if double precision floating point numbers are
enabled.
The implicit double promotion occurs because numbers of type UNITY_FLOAT
are passed into UnityPrintFloat, which expects const UNITY_DOUBLE.
This commit fixes it by explicitly casting to UNITY_DOUBLE.
There was a mismatch of definition and declaration of UnityPrintFloat
and this commit aligns both on const UNITY_DOUBLE, but then inside it
actually uses a positive version of the variable only.
Used clang-format, which produces noise on stuff you don't care about
and requires setting it up to match the existing code base. Kept the
potentially useful changes, discarded the rest, some manual tweaking
required. It did catch lots of pesky indentation mistakes.
Originated from commit c6dc96f3 but are rarely used and not in math.h
Removes float to double promotion warning and simplifies the code
'gcc -std=gnu99 -Wdouble-promotion' spits out these warnings
