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) Coverage Total Hit Test: PARI/GP v2.18.1 lcov report (development 31053-95e3b72995) Lines: 90.2 % 1787 1611 Test Date: 2026-07-24 17:03:07 Functions: 90.7 % 107 97 Legend: Lines:     hit not hit

Function Name	Hit count
FpM_echelon	3366410
FpM_hnfend	3366410
FpV_Fp_mul_part_ip	5420852
FpV_red_part_ipvec	37828616
Minus	2996342
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41407364
ZC_lincomb1z	30065601
ZC_lincomb1z_i	30065601
ZM_hnf	90227
ZM_hnf_knapsack	238
ZM_hnfall	29167
ZM_hnfall_i	752454
ZM_hnfcenter	25384
ZM_hnfintersectmod	28
ZM_hnflll	309106
ZM_hnfmod	162656
ZM_hnfmodall	5145444
ZM_hnfmodall_i	5196678
ZM_hnfmodid	4542277
ZM_hnfmodprime	3366410
ZM_hnfperm	385
ZM_redpart	1690777
ZM_reduce	4455142
ZM_rowrankprofile	303590
ZM_snf	16184
ZM_snf_group	764698
ZM_snf_no_divide	1302064
ZM_snfall	64246
ZM_snfall_i	848677
ZM_snfclean	1081645
ZMrow_divexact_inplace	1071270
ZV_allequal	322729
ZV_extgcd	110579
ZV_gcdext_i	111734
ZV_hnfgcdext	1162
ZV_snf_group	316947
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316947
ZV_snfclean	227101
ZpM_echelon	529494
addmulzii	592040629
addzi	283832857
affii2_or_copy_gc	54513671
allhnfmod	438578
bezout_step	890940
col_dup	3771820
col_mul	3369496
count	10216870
count2	555342
do_zero	0
findi	129120414
findi_normalize	129120414
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197797
hnf_i	62565
hnf_invimage	547578
hnf_invscale	275331
hnf_solve	461209
hnfadd	0
hnfadd_i	117024
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	303590
hnflll	7
hnfmerge_get_1	816035
hnfmod	14
hnfmodid	438564
hnfperm	14
hnfspec	0
hnfspec_i	186566
hnfswap	11653350
is_RgX	2590
mathnf0	1428
mathnfspec	0
matsnf0	469
must_swap	6201713
negcmpii	602537
normalize_as_RgX	364
optimal_D	5195040
p_mat	0
reduce1	1016504
reduce2	64559299
remove_0cols	336459
reverse_rows	618212
smith	385
smithall	35
smithclean	952
snf_group	1081645
snf_pile	1124030
snf_pile1	48
snfrank	154
subzi	7925228
trivsmith	0
update	842374
zlm_echelon	4808645
zv_snf_rank	0

Generated by: LCOV version 2.0-1