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 30617-dd5c93fb0e) Lines: 1603 1779 90.1 % Date: 2026-01-20 09:21:06 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	25168
ZM_hnfall	29375
hnf_i	61733
ZM_snfall	64190
ZM_hnf	89603
hnfadd_i	92771
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134578
ZM_hnfmod	162551
hnf_divscale	197479
ZV_snfclean	227091
hnffinal	227345
ZM_rowrankprofile	227349
ZM_hnflll	232875
hnf_invscale	275326
ZV_snfall	316793
ZV_snf_group	316794
ZV_allequal	322715
remove_0cols	335834
count2	421255
hnfmodid	438102
allhnfmod	438116
hnf_solve	461142
reverse_rows	465732
ZpM_echelon	528160
hnf_invimage	547522
negcmpii	602163
ZM_snf_group	712605
ZM_hnfall_i	752643
update	771724
ZM_snfall_i	796263
hnfmerge_get_1	815974
bezout_step	820374
reduce1	967385
ZMrow_divexact_inplace	976422
ZM_snfclean	1029496
snf_group	1029500
snf_pile	1071640
ZM_snf_no_divide	1235308
ZM_redpart	1551719
Minus	2056660
col_dup	2614868
col_mul	3086820
FpM_echelon	3364077
ZM_hnfmodprime	3364089
FpM_hnfend	3364304
ZM_reduce	4472795
ZM_hnfmodid	4536597
must_swap	4620966
zlm_echelon	4801550
ZM_hnfmodall	5139071
optimal_D	5188175
ZM_hnfmodall_i	5190206
FpV_Fp_mul_part_ip	5411476
subzi	6470761
count	8160065
hnfswap	8501594
ZC_lincomb1z	21862540
ZC_lincomb1z_i	21873447
FpV_red_part_ipvec	37705761
ZC_elem	41201382
affii2_or_copy_gc	47957771
reduce2	53156054
findi_normalize	106344070
findi	106353570
addzi	239380850
addmulzii	519052580

Generated by: LCOV version 1.16