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 30666-e2f9826198) Lines: 1603 1779 90.1 % Date: 2026-02-04 09:22:32 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364149
FpM_hnfend	3364348
FpV_Fp_mul_part_ip	5411678
FpV_red_part_ipvec	37720257
Minus	2055004
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41224116
ZC_lincomb1z	21866147
ZC_lincomb1z_i	21873720
ZM_hnf	89628
ZM_hnf_knapsack	238
ZM_hnfall	29379
ZM_hnfall_i	752656
ZM_hnfcenter	25164
ZM_hnflll	232693
ZM_hnfmod	162553
ZM_hnfmodall	5139616
ZM_hnfmodall_i	5190731
ZM_hnfmodid	4537086
ZM_hnfmodprime	3363944
ZM_hnfperm	385
ZM_redpart	1551931
ZM_reduce	4479091
ZM_rowrankprofile	227162
ZM_snf	15925
ZM_snf_group	712672
ZM_snf_no_divide	1235324
ZM_snfall	64190
ZM_snfall_i	796331
ZM_snfclean	1029655
ZMrow_divexact_inplace	976460
ZV_allequal	322717
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316937
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316936
ZV_snfclean	227092
ZpM_echelon	528159
addmulzii	519377813
addzi	239636578
affii2_or_copy_gc	47969609
allhnfmod	438118
bezout_step	820407
col_dup	2614787
col_mul	3087152
count	8160025
count2	421060
do_zero	0
findi	106334700
findi_normalize	106324138
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197480
hnf_i	61754
hnf_invimage	547529
hnf_invscale	275326
hnf_solve	461172
hnfadd	0
hnfadd_i	92589
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227163
hnflll	7
hnfmerge_get_1	815992
hnfmod	14
hnfmodid	438104
hnfperm	14
hnfspec	0
hnfspec_i	134574
hnfswap	8497920
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4618465
negcmpii	602528
normalize_as_RgX	364
optimal_D	5188779
p_mat	0
reduce1	967385
reduce2	53152796
remove_0cols	335859
reverse_rows	465367
smith	385
smithall	35
smithclean	693
snf_group	1029660
snf_pile	1071813
snf_pile1	48
snfrank	154
subzi	6469363
trivsmith	0
update	771800
zlm_echelon	4801619
zv_snf_rank	0

Generated by: LCOV version 1.16