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 30734-f1f26dedcb) Lines: 1603 1779 90.1 % Date: 2026-03-07 09:24:37 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364321
FpM_hnfend	3364492
FpV_Fp_mul_part_ip	5412018
FpV_red_part_ipvec	37729162
Minus	2992676
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41262248
ZC_lincomb1z	29900856
ZC_lincomb1z_i	29917601
ZM_hnf	89572
ZM_hnf_knapsack	238
ZM_hnfall	29308
ZM_hnfall_i	752591
ZM_hnfcenter	25172
ZM_hnflll	308812
ZM_hnfmod	162598
ZM_hnfmodall	5140502
ZM_hnfmodall_i	5191593
ZM_hnfmodid	4537589
ZM_hnfmodprime	3364319
ZM_hnfperm	385
ZM_redpart	1690010
ZM_reduce	4473545
ZM_rowrankprofile	303279
ZM_snf	15925
ZM_snf_group	764390
ZM_snf_no_divide	1301877
ZM_snfall	64239
ZM_snfall_i	848098
ZM_snfclean	1081374
ZMrow_divexact_inplace	1070800
ZV_allequal	322715
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316940
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316940
ZV_snfclean	227094
ZpM_echelon	528219
addmulzii	583411294
addzi	277557157
affii2_or_copy_gc	54250599
allhnfmod	438504
bezout_step	890510
col_dup	3768851
col_mul	3367382
count	10214055
count2	554940
do_zero	0
findi	128619830
findi_normalize	128597293
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197507
hnf_i	61769
hnf_invimage	547539
hnf_invscale	275327
hnf_solve	461167
hnfadd	0
hnfadd_i	116936
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	303283
hnflll	7
hnfmerge_get_1	815980
hnfmod	14
hnfmodid	438490
hnfperm	14
hnfspec	0
hnfspec_i	186344
hnfswap	11595532
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	6168542
negcmpii	602519
normalize_as_RgX	364
optimal_D	5189752
p_mat	0
reduce1	967385
reduce2	64277355
remove_0cols	335813
reverse_rows	617597
smith	385
smithall	35
smithclean	693
snf_group	1081376
snf_pile	1123482
snf_pile1	48
snfrank	154
subzi	7904962
trivsmith	0
update	841857
zlm_echelon	4802449
zv_snf_rank	0

Generated by: LCOV version 1.16