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 30425-4669acb345) Lines: 1602 1778 90.1 % Date: 2025-07-30 09:23:31 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3361436
FpM_hnfend	3361609
FpV_Fp_mul_part_ip	5408107
FpV_red_part_ipvec	37665130
Minus	2056907
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41184576
ZC_lincomb1z	21844589
ZC_lincomb1z_i	21854522
ZM_hnf	89426
ZM_hnf_knapsack	238
ZM_hnfall	29177
ZM_hnfall_i	752448
ZM_hnfcenter	25202
ZM_hnflll	232687
ZM_hnfmod	162557
ZM_hnfmodall	5131405
ZM_hnfmodall_i	5182701
ZM_hnfmodid	4528800
ZM_hnfmodprime	3361435
ZM_hnfperm	385
ZM_redpart	1551830
ZM_reduce	4478593
ZM_rowrankprofile	227156
ZM_snf	15925
ZM_snf_group	712863
ZM_snf_no_divide	1235304
ZM_snfall	64189
ZM_snfall_i	796526
ZM_snfclean	1029707
ZMrow_divexact_inplace	976581
ZV_allequal	322718
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316765
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316765
ZV_snfclean	227089
ZpM_echelon	528254
addmulzii	517786149
addzi	239248081
affii2_or_copy_gc	47794264
allhnfmod	438226
bezout_step	820431
col_dup	2615191
col_mul	3087133
count	8104084
count2	420990
do_zero	0
findi	106004393
findi_normalize	105996328
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197440
hnf_i	61726
hnf_invimage	547281
hnf_invscale	275318
hnf_solve	461159
hnfadd	0
hnfadd_i	92356
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227158
hnflll	7
hnfmerge_get_1	816112
hnfmod	14
hnfmodid	438212
hnfperm	14
hnfspec	0
hnfspec_i	134802
hnfswap	8494441
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4630368
negcmpii	602128
normalize_as_RgX	364
optimal_D	5180687
p_mat	0
reduce1	967385
reduce2	52982224
remove_0cols	335626
reverse_rows	465362
smith	385
smithall	35
smithclean	693
snf_group	1029713
snf_pile	1071826
snf_pile1	48
snfrank	154
subzi	6456838
trivsmith	0
update	771797
zlm_echelon	4797693
zv_snf_rank	0

Generated by: LCOV version 1.16