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 30759-17b423fb9b) Lines: 1610 1786 90.1 % Date: 2026-03-21 09:26:11 Functions: 97 107 90.7 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364152
FpM_hnfend	3364377
FpV_Fp_mul_part_ip	5411882
FpV_red_part_ipvec	37727015
Minus	2996039
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41263538
ZC_lincomb1z	29937476
ZC_lincomb1z_i	29953543
ZM_hnf	89968
ZM_hnf_knapsack	238
ZM_hnfall	29357
ZM_hnfall_i	752631
ZM_hnfcenter	25166
ZM_hnfintersectmod	28
ZM_hnflll	309371
ZM_hnfmod	162596
ZM_hnfmodall	5140648
ZM_hnfmodall_i	5191749
ZM_hnfmodid	4537675
ZM_hnfmodprime	3364153
ZM_hnfperm	385
ZM_redpart	1689755
ZM_reduce	4474161
ZM_rowrankprofile	303855
ZM_snf	15925
ZM_snf_group	764399
ZM_snf_no_divide	1301778
ZM_snfall	64239
ZM_snfall_i	848107
ZM_snfclean	1081389
ZMrow_divexact_inplace	1070832
ZV_allequal	322714
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316941
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316940
ZV_snfclean	227088
ZpM_echelon	528221
addmulzii	583801605
addzi	277662046
affii2_or_copy_gc	54287663
allhnfmod	438514
bezout_step	890440
col_dup	3769177
col_mul	3367206
count	10216639
count2	554631
do_zero	0
findi	128719504
findi_normalize	128692237
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197487
hnf_i	62117
hnf_invimage	547536
hnf_invscale	275322
hnf_solve	461169
hnfadd	0
hnfadd_i	117496
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	303856
hnflll	7
hnfmerge_get_1	815982
hnfmod	14
hnfmodid	438501
hnfperm	14
hnfspec	0
hnfspec_i	186358
hnfswap	11613656
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	6180247
negcmpii	602529
normalize_as_RgX	364
optimal_D	5189643
p_mat	0
reduce1	967385
reduce2	64329521
remove_0cols	336189
reverse_rows	618656
smith	385
smithall	35
smithclean	693
snf_group	1081395
snf_pile	1123498
snf_pile1	48
snfrank	154
subzi	7915383
trivsmith	0
update	841803
zlm_echelon	4802322
zv_snf_rank	0

Generated by: LCOV version 1.16