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 30480-572da319a6) Lines: 1604 1778 90.2 % Date: 2025-08-27 09:24:05 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3361878
FpM_hnfend	3362101
FpV_Fp_mul_part_ip	5409065
FpV_red_part_ipvec	37667544
Minus	2057894
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41171247
ZC_lincomb1z	21864295
ZC_lincomb1z_i	21871766
ZM_hnf	89352
ZM_hnf_knapsack	238
ZM_hnfall	29143
ZM_hnfall_i	752422
ZM_hnfcenter	25200
ZM_hnflll	232761
ZM_hnfmod	162567
ZM_hnfmodall	5131702
ZM_hnfmodall_i	5182991
ZM_hnfmodid	4529143
ZM_hnfmodprime	3361876
ZM_hnfperm	385
ZM_redpart	1551828
ZM_reduce	4469262
ZM_rowrankprofile	227231
ZM_snf	15925
ZM_snf_group	712859
ZM_snf_no_divide	1235309
ZM_snfall	64195
ZM_snfall_i	796523
ZM_snfclean	1029729
ZMrow_divexact_inplace	976586
ZV_allequal	322721
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316773
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316773
ZV_snfclean	227084
ZpM_echelon	528267
addmulzii	518118144
addzi	239484344
affii2_or_copy_gc	47835952
allhnfmod	438231
bezout_step	820423
col_dup	2616900
col_mul	3086977
count	8149607
count2	421032
do_zero	0
findi	106063019
findi_normalize	106054544
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197430
hnf_i	61686
hnf_invimage	547289
hnf_invscale	275320
hnf_solve	461158
hnfadd	0
hnfadd_i	92425
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227231
hnflll	7
hnfmerge_get_1	816128
hnfmod	14
hnfmodid	438218
hnfperm	14
hnfspec	0
hnfspec_i	134808
hnfswap	8497954
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4631402
negcmpii	602127
normalize_as_RgX	364
optimal_D	5181069
p_mat	0
reduce1	967385
reduce2	53006062
remove_0cols	335563
reverse_rows	465496
smith	385
smithall	35
smithclean	693
snf_group	1029727
snf_pile	1071862
snf_pile1	48
snfrank	154
subzi	6456630
trivsmith	0
update	771756
zlm_echelon	4799340
zv_snf_rank	0

Generated by: LCOV version 1.16