Add macro for consistent sunrealtype formatting #517
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Steven-Roberts
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balos1,
gardner48,
cswoodward and
drreynolds
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test/answers
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Need to open a PR in the answers repo to merge these updates into main
test/unit_tests/arkode/CXX_serial/ark_test_dahlquist_mri_-1.out
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Co-authored-by: David Gardner <gardner48@llnl.gov>
Co-authored-by: David Gardner <gardner48@llnl.gov>
…feature/real-format3
include/sundials/sundials_types.h
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| #if defined(SUNDIALS_SINGLE_PRECISION) | ||
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| typedef float sunrealtype; | ||
| #define SUN_RCONST(x) x##F | ||
| #define SUN_BIG_REAL FLT_MAX | ||
| #define SUN_SMALL_REAL FLT_MIN | ||
| #define SUN_UNIT_ROUNDOFF FLT_EPSILON | ||
| #define SUN_FORMAT_E "% ." SUN_STRING(FLT_DIG) "e" | ||
| #define SUN_FORMAT_G "% ." SUN_STRING(FLT_DIG) "g" |
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Looking at the updated outputs with "% ." I think it would be better to have this macro not include % (i.e., use #define SUN_FORMAT_G "." SUN_STRING(FLT_DIG) "g". This way the space after % can be added locally in the format string when it's needed for alignment (i.e., outputting matrix/vector entries) and in other cases (like PrintAllStats) the space can be excluded.
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I agree the new output file format is not ideal with double spaces for positive numbers. What about this?
#define SUN_FORMAT_E "% ." SUN_STRING(FLT_DIG) "e"
#define SUN_FORMAT_G "%." SUN_STRING(FLT_DIG) "g"
Note I just removed a space from the g format. We can use SUN_FORMAT_E for cases where alignment is needed (I think this is already the case), and SUN_FORMAT_G elsewhere. We could even rename them to SUN_FORMAT_ALIGNED and SUN_FORMAT. I like the simplicity and consistency of just two macros which contain the entire format specifier. Let's discuss at tomorrow's meeting.
Replaces #498 after v7.1.0 update