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2026-40-18 Denis Hugonnard-Roche : Fix #1206 And Faster Log Function #286

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2026-40-18 Denis Hugonnard-Roche : Fix #1206 And Faster Log Function #286

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2026-40-18 Denis Hugonnard-Roche : Fix #1206 And Faster Log Function
dyoparis Apr 18, 2026
aeadf2c
2026-04-24 : Denis Hugonnerd-Roche : Implement 5x Faster cob_mpf_exp
dyoparis Apr 23, 2026
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2026-04-25 Denis Hugonnard-Roche
dyoparis Apr 25, 2026
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24 changes: 24 additions & 0 deletions libcob/ChangeLog
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Original file line number Diff line number Diff line change
@@ -1,4 +1,28 @@

2026-04-25 Denis Hugonnnard-Roche <dhugonnard@users.sourceforge.net>

* intrinsic.c (cob_decimal_pow): Fix #924 #925 #989 #1020
* intrinsic.c : add cob_mpft3 cob_init_intrinsic
and cob_exit_intrinsic are updated
Fix typo also

2026-04-24 Denis Hugonnnard-Roche <dhugonnard@users.sourceforge.net>

* intrinsic.c (cob_mpf_exp): implement a faster algorithm
* intrinsic.c (cob_reduce_exp_arg): new function
* coblocal.h.c: add COB_EXP_DIVIDE as parameter

2026-03-18 Denis Hugonnnard-Roche <dhugonnard@users.sourceforge.net>

* coblocal.h, intrinsic.c: implement limits to cob_intr_exp, cob_intr_exp
and cob_intr_factorial .

2026-03-02 Denis Hugonnard-Roche <dhugonnard@users.sourceforge.net>

* intrinsic.c (cob_mpf_log): implement a faster ln algorithm
* intrinsic.c (setup_cob_log_half): add cob_log_two constant
* intrinsic.c (cob_exit_intrinsic): clear cob_log_two

2025-12-04 Simon Sobisch <simonsobisch@gnu.org>

* fileio.c (indexed_open) [WITH_DB]: if open was successful but checking
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14 changes: 14 additions & 0 deletions libcob/coblocal.h
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Expand Up @@ -464,6 +464,20 @@ struct config_tbl {
internal float to internal decimal */
#define COB_MAX_INTERMEDIATE_FLOATING_SIZE 96

#define COB_EXP_DIVIDE 24L
/* #1206 EXP EXP10 FACTORIAL intrinsic limits */
#define COB_MAX_EXP_LIMIT 14150UL
#define COB_MIN_EXP_LIMIT -14145L
#define COB_MIN_EXP_SCALE 6144
#define COB_MIN_EXP_MANTISSA 8UL

#define COB_MAX_EXP10_LIMIT 6112UL
#define COB_MIN_EXP10_LIMIT -6175
#define COB_MIN_EXP10_SCALE 6175
#define COB_MIN_EXP10_MANTISSA 1UL

#define COB_MAX_FACT_LIMIT 2114

/* Local function prototypes */
COB_HIDDEN void cob_init_numeric (cob_global *);
COB_HIDDEN void cob_init_cconv (cob_global *);
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