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 30531-d68fd7cb7d) Lines: 1602 1778 90.1 % Date: 2025-10-15 09:22:51 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	25199
ZM_hnfall	29199
hnf_i	61731
ZM_snfall	64204
ZM_hnf	89425
hnfadd_i	92440
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134817
ZM_hnfmod	162578
hnf_divscale	197452
ZV_snfclean	227092
ZM_rowrankprofile	227258
hnffinal	227259
ZM_hnflll	232789
hnf_invscale	275338
ZV_snf_group	316769
ZV_snfall	316769
ZV_allequal	322718
remove_0cols	335649
count2	421335
hnfmodid	438206
allhnfmod	438220
hnf_solve	461134
reverse_rows	465558
ZpM_echelon	528255
hnf_invimage	547272
negcmpii	602132
ZM_snf_group	712890
ZM_hnfall_i	752478
update	771809
ZM_snfall_i	796560
hnfmerge_get_1	816103
bezout_step	820425
reduce1	967385
ZMrow_divexact_inplace	976630
snf_group	1029743
ZM_snfclean	1029746
snf_pile	1071847
ZM_snf_no_divide	1235327
ZM_redpart	1551866
Minus	2058233
col_dup	2616927
col_mul	3087179
FpM_echelon	3364007
ZM_hnfmodprime	3364008
FpM_hnfend	3364147
ZM_reduce	4480458
ZM_hnfmodid	4531254
must_swap	4630893
zlm_echelon	4801380
ZM_hnfmodall	5133860
optimal_D	5183098
ZM_hnfmodall_i	5185169
FpV_Fp_mul_part_ip	5411276
subzi	6460315
count	8147796
hnfswap	8499420
ZC_lincomb1z	21864287
ZC_lincomb1z_i	21873996
FpV_red_part_ipvec	37678526
ZC_elem	41190585
affii2_or_copy_gc	47839793
reduce2	53014365
findi_normalize	106055252
findi	106063514
addzi	239639637
addmulzii	518326016

Generated by: LCOV version 1.16