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
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	25164
ZM_hnfall	29379
hnf_i	61754
ZM_snfall	64190
ZM_hnf	89628
hnfadd_i	92589
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134574
ZM_hnfmod	162553
hnf_divscale	197480
ZV_snfclean	227092
ZM_rowrankprofile	227162
hnffinal	227163
ZM_hnflll	232693
hnf_invscale	275326
ZV_snfall	316936
ZV_snf_group	316937
ZV_allequal	322717
remove_0cols	335859
count2	421060
hnfmodid	438104
allhnfmod	438118
hnf_solve	461172
reverse_rows	465367
ZpM_echelon	528159
hnf_invimage	547529
negcmpii	602528
ZM_snf_group	712672
ZM_hnfall_i	752656
update	771800
ZM_snfall_i	796331
hnfmerge_get_1	815992
bezout_step	820407
reduce1	967385
ZMrow_divexact_inplace	976460
ZM_snfclean	1029655
snf_group	1029660
snf_pile	1071813
ZM_snf_no_divide	1235324
ZM_redpart	1551931
Minus	2055004
col_dup	2614787
col_mul	3087152
ZM_hnfmodprime	3363944
FpM_echelon	3364149
FpM_hnfend	3364348
ZM_reduce	4479091
ZM_hnfmodid	4537086
must_swap	4618465
zlm_echelon	4801619
ZM_hnfmodall	5139616
optimal_D	5188779
ZM_hnfmodall_i	5190731
FpV_Fp_mul_part_ip	5411678
subzi	6469363
count	8160025
hnfswap	8497920
ZC_lincomb1z	21866147
ZC_lincomb1z_i	21873720
FpV_red_part_ipvec	37720257
ZC_elem	41224116
affii2_or_copy_gc	47969609
reduce2	53152796
findi_normalize	106324138
findi	106334700
addzi	239636578
addmulzii	519377813

Generated by: LCOV version 1.16