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 30676-32b8a71ec1) Lines: 1603 1779 90.1 % Date: 2026-02-14 09:22:40 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364144
FpM_hnfend	3364333
FpV_Fp_mul_part_ip	5411482
FpV_red_part_ipvec	37711814
Minus	2056162
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41217236
ZC_lincomb1z	21871081
ZC_lincomb1z_i	21880302
ZM_hnf	89608
ZM_hnf_knapsack	238
ZM_hnfall	29361
ZM_hnfall_i	752638
ZM_hnfcenter	25169
ZM_hnflll	232742
ZM_hnfmod	162550
ZM_hnfmodall	5139097
ZM_hnfmodall_i	5190187
ZM_hnfmodid	4536558
ZM_hnfmodprime	3363989
ZM_hnfperm	385
ZM_redpart	1551854
ZM_reduce	4479436
ZM_rowrankprofile	227212
ZM_snf	15925
ZM_snf_group	712650
ZM_snf_no_divide	1235298
ZM_snfall	64190
ZM_snfall_i	796310
ZM_snfclean	1029664
ZMrow_divexact_inplace	976437
ZV_allequal	322711
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316942
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316942
ZV_snfclean	227089
ZpM_echelon	528137
addmulzii	519337948
addzi	239659253
affii2_or_copy_gc	47981593
allhnfmod	438116
bezout_step	820377
col_dup	2614913
col_mul	3086886
count	8161564
count2	421207
do_zero	0
findi	106356000
findi_normalize	106349189
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197470
hnf_i	61752
hnf_invimage	547526
hnf_invscale	275323
hnf_solve	461150
hnfadd	0
hnfadd_i	92630
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227212
hnflll	7
hnfmerge_get_1	815981
hnfmod	14
hnfmodid	438091
hnfperm	14
hnfspec	0
hnfspec_i	134581
hnfswap	8501650
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4621283
negcmpii	602519
normalize_as_RgX	364
optimal_D	5188229
p_mat	0
reduce1	967385
reduce2	53167170
remove_0cols	335835
reverse_rows	465466
smith	385
smithall	35
smithclean	693
snf_group	1029666
snf_pile	1071791
snf_pile1	48
snfrank	154
subzi	6471736
trivsmith	0
update	771731
zlm_echelon	4801536
zv_snf_rank	0

Generated by: LCOV version 1.16