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 30835-e55edf4b45) Lines: 1610 1786 90.1 % Date: 2026-04-24 09:27:20 Functions: 97 107 90.7 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364194
FpM_hnfend	3364458
FpV_Fp_mul_part_ip	5411989
FpV_red_part_ipvec	37720736
Minus	2994845
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41251105
ZC_lincomb1z	29902416
ZC_lincomb1z_i	29926230
ZM_hnf	89917
ZM_hnf_knapsack	238
ZM_hnfall	29307
ZM_hnfall_i	752587
ZM_hnfcenter	25169
ZM_hnfintersectmod	28
ZM_hnflll	309099
ZM_hnfmod	162599
ZM_hnfmodall	5140199
ZM_hnfmodall_i	5191311
ZM_hnfmodid	4537258
ZM_hnfmodprime	3364201
ZM_hnfperm	385
ZM_redpart	1689720
ZM_reduce	4469009
ZM_rowrankprofile	303588
ZM_snf	15925
ZM_snf_group	764367
ZM_snf_no_divide	1301752
ZM_snfall	64238
ZM_snfall_i	848079
ZM_snfclean	1081388
ZMrow_divexact_inplace	1070785
ZV_allequal	322718
ZV_extgcd	110572
ZV_gcdext_i	111272
ZV_hnfgcdext	707
ZV_snf_group	316937
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316936
ZV_snfclean	227094
ZpM_echelon	528220
addmulzii	583317926
addzi	277227285
affii2_or_copy_gc	54229873
allhnfmod	438507
bezout_step	890508
col_dup	3769124
col_mul	3367312
count	10213970
count2	554598
do_zero	0
findi	128629479
findi_normalize	128609630
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197490
hnf_i	62115
hnf_invimage	547538
hnf_invscale	275322
hnf_solve	461161
hnfadd	0
hnfadd_i	117228
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	303592
hnflll	7
hnfmerge_get_1	815980
hnfmod	14
hnfmodid	438493
hnfperm	14
hnfspec	0
hnfspec_i	186360
hnfswap	11609700
is_RgX	2590
mathnf0	973
mathnfspec	0
matsnf0	469
must_swap	6180336
negcmpii	602524
normalize_as_RgX	364
optimal_D	5189223
p_mat	0
reduce1	991087
reduce2	64273337
remove_0cols	336127
reverse_rows	618170
smith	385
smithall	35
smithclean	693
snf_group	1081397
snf_pile	1123382
snf_pile1	48
snfrank	154
subzi	7908424
trivsmith	0
update	841846
zlm_echelon	4802329
zv_snf_rank	0

Generated by: LCOV version 1.16