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RFC: Ability to change rounding mode for all floats (cf. #2976) #3149

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merged 11 commits into from
Sep 2, 2013
Merged

RFC: Ability to change rounding mode for all floats (cf. #2976) #3149

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95dbacb
Add rounding modes to normal floating point arithmetic
andrioni May 19, 2013
823b017
Add Float32 rounding mode tests
andrioni May 19, 2013
1a13239
Integrate the new rounding modes with BigFloats
andrioni May 19, 2013
451f21e
Export RoundAwayZero too (even though it only works for BigFloats)
andrioni May 19, 2013
4f6ee0f
Stop hardcoding the `fenv.h` constants
andrioni May 20, 2013
454f61a
Fix bug while parsing fenv_constants.h
andrioni May 20, 2013
5a064b7
Renaming of the rounding modes
andrioni Aug 27, 2013
54a4055
Fixes post-rebase
andrioni Aug 27, 2013
e314eba
Remove fenv_constants.jl, as it is auto-generated
andrioni Aug 28, 2013
285b238
Documentation for the rounding modes (manual + stdlib)
andrioni Aug 28, 2013
773b60e
Fix issue with fenv.h and Ubuntu 12.04
andrioni Aug 28, 2013
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Fix issue with fenv.h and Ubuntu 12.04 
If the values from fenv.h aren't found by the C preprocessor, it uses
the default ones for x86/x64
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@andrioni
andrioni committed Aug 28, 2013
commit 773b60e442472828c76c33209c3e7b0581588a44
2 changes: 1 addition & 1 deletion base/Makefile
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Expand Up @@ -35,7 +35,7 @@ errno_h.jl:
@$(PRINT_PERL) echo '#include "errno.h"' | $(CPP) -dM - | perl -nle 'print "const $$1 = int32($$2)" if /^#define\s+(E\w+)\s+(\d+)\s*$$/' | sort > $@

fenv_constants.jl: ../src/fenv_constants.h
$(QUIET_PERL) ${CC} -E -P -DJULIA ../src/fenv_constants.h | tail -n 8 > $@
@$(PRINT_PERL) ${CPP} -P -DJULIA ../src/fenv_constants.h | tail -n 8 | perl -ple 's/\sFE_UN\w+/ 0x10/g; s/\sFE_O\w+/ 0x08/g; s/\sFE_DI\w+/ 0x04/g; s/\sFE_INV\w+/ 0x01/g; s/\sFE_TON\w+/ 0x00/g; s/\sFE_UP\w+/ 0x800/g; s/\sFE_DO\w+/ 0x400/g; s/\sFE_TOW\w+/ 0xc00/g' > $@

file_constants.jl: ../src/file_constants.h
@$(PRINT_PERL) $(CPP) -P -DJULIA ../src/file_constants.h | perl -nle 'print "$$1 0o$$2" if /^(\s*const\s+[A-z_]+\s+=)\s+(0[0-9]*)\s*$$/; print "$$1" if /^\s*(const\s+[A-z_]+\s+=\s+([1-9]|0x)[0-9A-z]*)\s*$$/' > $@
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