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
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	25200
ZM_hnfall	29143
hnf_i	61686
ZM_snfall	64195
ZM_hnf	89352
hnfadd_i	92425
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134808
ZM_hnfmod	162567
hnf_divscale	197430
ZV_snfclean	227084
ZM_rowrankprofile	227231
hnffinal	227231
ZM_hnflll	232761
hnf_invscale	275320
ZV_snf_group	316773
ZV_snfall	316773
ZV_allequal	322721
remove_0cols	335563
count2	421032
hnfmodid	438218
allhnfmod	438231
hnf_solve	461158
reverse_rows	465496
ZpM_echelon	528267
hnf_invimage	547289
negcmpii	602127
ZM_snf_group	712859
ZM_hnfall_i	752422
update	771756
ZM_snfall_i	796523
hnfmerge_get_1	816128
bezout_step	820423
reduce1	967385
ZMrow_divexact_inplace	976586
snf_group	1029727
ZM_snfclean	1029729
snf_pile	1071862
ZM_snf_no_divide	1235309
ZM_redpart	1551828
Minus	2057894
col_dup	2616900
col_mul	3086977
ZM_hnfmodprime	3361876
FpM_echelon	3361878
FpM_hnfend	3362101
ZM_reduce	4469262
ZM_hnfmodid	4529143
must_swap	4631402
zlm_echelon	4799340
ZM_hnfmodall	5131702
optimal_D	5181069
ZM_hnfmodall_i	5182991
FpV_Fp_mul_part_ip	5409065
subzi	6456630
count	8149607
hnfswap	8497954
ZC_lincomb1z	21864295
ZC_lincomb1z_i	21871766
FpV_red_part_ipvec	37667544
ZC_elem	41171247
affii2_or_copy_gc	47835952
reduce2	53006062
findi_normalize	106054544
findi	106063019
addzi	239484344
addmulzii	518118144

Generated by: LCOV version 1.16