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

Generated by: LCOV version 1.16