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 30613-2b070936c6) Lines: 1603 1779 90.1 % Date: 2026-01-15 09:21:54 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	25166
ZM_hnfall	29343
hnf_i	61731
ZM_snfall	64190
ZM_hnf	89569
hnfadd_i	92603
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134576
ZM_hnfmod	162554
hnf_divscale	197489
ZV_snfclean	227086
ZM_rowrankprofile	227179
hnffinal	227179
ZM_hnflll	232709
hnf_invscale	275321
ZV_snf_group	316794
ZV_snfall	316794
ZV_allequal	322713
remove_0cols	335798
count2	420995
hnfmodid	438104
allhnfmod	438118
hnf_solve	461157
reverse_rows	465406
ZpM_echelon	528147
hnf_invimage	547527
negcmpii	602157
ZM_snf_group	712644
ZM_hnfall_i	752620
update	771777
ZM_snfall_i	796306
hnfmerge_get_1	815991
bezout_step	820417
reduce1	967385
ZMrow_divexact_inplace	976410
ZM_snfclean	1029509
snf_group	1029513
snf_pile	1071643
ZM_snf_no_divide	1235300
ZM_redpart	1551861
Minus	2055533
col_dup	2614827
col_mul	3087053
ZM_hnfmodprime	3364144
FpM_echelon	3364158
FpM_hnfend	3364365
ZM_reduce	4475096
ZM_hnfmodid	4536828
must_swap	4620206
zlm_echelon	4801533
ZM_hnfmodall	5139358
optimal_D	5188427
ZM_hnfmodall_i	5190426
FpV_Fp_mul_part_ip	5411401
subzi	6469463
count	8161278
hnfswap	8498947
ZC_lincomb1z	21859662
ZC_lincomb1z_i	21868074
FpV_red_part_ipvec	37710887
ZC_elem	41211751
affii2_or_copy_gc	47966965
reduce2	53150854
findi_normalize	106326989
findi	106333898
addzi	239475769
addmulzii	519023888

Generated by: LCOV version 1.16