Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report

Current view: top level - basemath - hnf_snf.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30601-812dd05845) Lines: 1603 1779 90.1 % Date: 2026-01-06 09:22:34 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3363989
FpM_hnfend	3364333
FpV_Fp_mul_part_ip	5411497
FpV_red_part_ipvec	37709144
Minus	2055803
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41212079
ZC_lincomb1z	21869250
ZC_lincomb1z_i	21877898
ZM_hnf	89635
ZM_hnf_knapsack	238
ZM_hnfall	29385
ZM_hnfall_i	752660
ZM_hnfcenter	25167
ZM_hnflll	232697
ZM_hnfmod	162551
ZM_hnfmodall	5139121
ZM_hnfmodall_i	5190237
ZM_hnfmodid	4536617
ZM_hnfmodprime	3364153
ZM_hnfperm	385
ZM_redpart	1551893
ZM_reduce	4479464
ZM_rowrankprofile	227168
ZM_snf	15925
ZM_snf_group	712638
ZM_snf_no_divide	1235335
ZM_snfall	64190
ZM_snfall_i	796307
ZM_snfclean	1029519
ZMrow_divexact_inplace	976407
ZV_allequal	322714
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316799
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316799
ZV_snfclean	227097
ZpM_echelon	528162
addmulzii	519207846
addzi	239608062
affii2_or_copy_gc	47962417
allhnfmod	438117
bezout_step	820430
col_dup	2614868
col_mul	3087139
count	8160767
count2	421120
do_zero	0
findi	106357213
findi_normalize	106347828
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197481
hnf_i	61755
hnf_invimage	547519
hnf_invscale	275326
hnf_solve	461141
hnfadd	0
hnfadd_i	92591
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227170
hnflll	7
hnfmerge_get_1	815976
hnfmod	14
hnfmodid	438104
hnfperm	14
hnfspec	0
hnfspec_i	134579
hnfswap	8498571
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4620050
negcmpii	602155
normalize_as_RgX	364
optimal_D	5188132
p_mat	0
reduce1	967385
reduce2	53159332
remove_0cols	335867
reverse_rows	465390
smith	385
smithall	35
smithclean	693
snf_group	1029520
snf_pile	1071646
snf_pile1	48
snfrank	154
subzi	6470962
trivsmith	0
update	771799
zlm_echelon	4801521
zv_snf_rank	0

Generated by: LCOV version 1.16