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 30657-d14c2a9e4e) Lines: 1603 1779 90.1 % Date: 2026-01-29 09:23:20 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364133
FpM_hnfend	3364393
FpV_Fp_mul_part_ip	5411512
FpV_red_part_ipvec	37713961
Minus	2055958
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41217102
ZC_lincomb1z	21864247
ZC_lincomb1z_i	21872543
ZM_hnf	89633
ZM_hnf_knapsack	238
ZM_hnfall	29379
ZM_hnfall_i	752657
ZM_hnfcenter	25167
ZM_hnflll	232721
ZM_hnfmod	162554
ZM_hnfmodall	5139436
ZM_hnfmodall_i	5190535
ZM_hnfmodid	4536903
ZM_hnfmodprime	3364142
ZM_hnfperm	385
ZM_redpart	1551797
ZM_reduce	4480158
ZM_rowrankprofile	227192
ZM_snf	15925
ZM_snf_group	712627
ZM_snf_no_divide	1235306
ZM_snfall	64190
ZM_snfall_i	796287
ZM_snfclean	1029511
ZMrow_divexact_inplace	976426
ZV_allequal	322712
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316799
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316799
ZV_snfclean	227090
ZpM_echelon	528160
addmulzii	519390601
addzi	239687191
affii2_or_copy_gc	47981003
allhnfmod	438126
bezout_step	820368
col_dup	2614842
col_mul	3086873
count	8160201
count2	421025
do_zero	0
findi	106350608
findi_normalize	106345996
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197488
hnf_i	61759
hnf_invimage	547535
hnf_invscale	275326
hnf_solve	461161
hnfadd	0
hnfadd_i	92614
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227191
hnflll	7
hnfmerge_get_1	815985
hnfmod	14
hnfmodid	438112
hnfperm	14
hnfspec	0
hnfspec_i	134576
hnfswap	8499114
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4620709
negcmpii	602160
normalize_as_RgX	364
optimal_D	5188561
p_mat	0
reduce1	967385
reduce2	53162632
remove_0cols	335865
reverse_rows	465430
smith	385
smithall	35
smithclean	693
snf_group	1029518
snf_pile	1071660
snf_pile1	48
snfrank	154
subzi	6469502
trivsmith	0
update	771736
zlm_echelon	4801610
zv_snf_rank	0

Generated by: LCOV version 1.16