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 30604-e5d817ee12) Lines: 1603 1779 90.1 % Date: 2026-01-09 09:21:43 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364218
FpM_hnfend	3364366
FpV_Fp_mul_part_ip	5411500
FpV_red_part_ipvec	37706862
Minus	2055983
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41209594
ZC_lincomb1z	21863230
ZC_lincomb1z_i	21872459
ZM_hnf	89584
ZM_hnf_knapsack	238
ZM_hnfall	29348
ZM_hnfall_i	752626
ZM_hnfcenter	25173
ZM_hnflll	232747
ZM_hnfmod	162554
ZM_hnfmodall	5138508
ZM_hnfmodall_i	5190160
ZM_hnfmodid	4536569
ZM_hnfmodprime	3364240
ZM_hnfperm	385
ZM_redpart	1551917
ZM_reduce	4477172
ZM_rowrankprofile	227216
ZM_snf	15925
ZM_snf_group	712647
ZM_snf_no_divide	1235362
ZM_snfall	64189
ZM_snfall_i	796307
ZM_snfclean	1029508
ZMrow_divexact_inplace	976404
ZV_allequal	322719
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316795
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316795
ZV_snfclean	227093
ZpM_echelon	528139
addmulzii	519226709
addzi	239592770
affii2_or_copy_gc	47969405
allhnfmod	438124
bezout_step	820471
col_dup	2614801
col_mul	3087267
count	8160974
count2	421102
do_zero	0
findi	106336524
findi_normalize	106332619
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197482
hnf_i	61741
hnf_invimage	547532
hnf_invscale	275322
hnf_solve	461161
hnfadd	0
hnfadd_i	92641
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227217
hnflll	7
hnfmerge_get_1	815981
hnfmod	14
hnfmodid	438110
hnfperm	14
hnfspec	0
hnfspec_i	134577
hnfswap	8499194
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4620402
negcmpii	602156
normalize_as_RgX	364
optimal_D	5188225
p_mat	0
reduce1	967385
reduce2	53152170
remove_0cols	335812
reverse_rows	465479
smith	385
smithall	35
smithclean	693
snf_group	1029487
snf_pile	1071664
snf_pile1	48
snfrank	154
subzi	6469935
trivsmith	0
update	771832
zlm_echelon	4801629
zv_snf_rank	0

Generated by: LCOV version 1.16