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 30552-d1d0643eee) Lines: 1603 1779 90.1 % Date: 2025-11-22 09:22:46 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364029
FpM_hnfend	3364248
FpV_Fp_mul_part_ip	5411452
FpV_red_part_ipvec	37677228
Minus	2058910
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41186972
ZC_lincomb1z	21869645
ZC_lincomb1z_i	21880937
ZM_hnf	89421
ZM_hnf_knapsack	238
ZM_hnfall	29190
ZM_hnfall_i	752468
ZM_hnfcenter	25197
ZM_hnflll	232839
ZM_hnfmod	162580
ZM_hnfmodall	5133743
ZM_hnfmodall_i	5185037
ZM_hnfmodid	4531128
ZM_hnfmodprime	3364033
ZM_hnfperm	385
ZM_redpart	1551786
ZM_reduce	4478431
ZM_rowrankprofile	227309
ZM_snf	15925
ZM_snf_group	712887
ZM_snf_no_divide	1235323
ZM_snfall	64203
ZM_snfall_i	796553
ZM_snfclean	1029754
ZMrow_divexact_inplace	976595
ZV_allequal	322720
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316771
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316770
ZV_snfclean	227093
ZpM_echelon	528384
addmulzii	518371698
addzi	239606309
affii2_or_copy_gc	47844850
allhnfmod	438225
bezout_step	820414
col_dup	2616940
col_mul	3086925
count	8148691
count2	421313
do_zero	0
findi	106096509
findi_normalize	106088660
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197449
hnf_i	61736
hnf_invimage	547291
hnf_invscale	275337
hnf_solve	461149
hnfadd	0
hnfadd_i	92490
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227310
hnflll	7
hnfmerge_get_1	816140
hnfmod	14
hnfmodid	438211
hnfperm	14
hnfspec	0
hnfspec_i	134819
hnfswap	8502839
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4633090
negcmpii	602128
normalize_as_RgX	364
optimal_D	5183042
p_mat	0
reduce1	967385
reduce2	53029515
remove_0cols	335649
reverse_rows	465666
smith	385
smithall	35
smithclean	693
snf_group	1029756
snf_pile	1071873
snf_pile1	48
snfrank	154
subzi	6461429
trivsmith	0
update	771746
zlm_echelon	4801603
zv_snf_rank	0

Generated by: LCOV version 1.16