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 30569-8181146aa1) Lines: 1603 1779 90.1 % Date: 2025-12-04 09:22:12 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	25208
ZM_hnfall	29272
hnf_i	61688
ZM_snfall	64218
ZM_hnf	89455
hnfadd_i	92696
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134830
ZM_hnfmod	162602
hnf_divscale	197692
ZV_snfclean	227091
ZM_rowrankprofile	227527
hnffinal	227527
ZM_hnflll	233057
hnf_invscale	275365
ZV_snf_group	316791
ZV_snfall	316791
ZV_allequal	322741
remove_0cols	335679
count2	421352
hnfmodid	438378
allhnfmod	438392
hnf_solve	461143
reverse_rows	466102
ZpM_echelon	528408
hnf_invimage	547516
negcmpii	602154
ZM_snf_group	712925
ZM_hnfall_i	752570
update	771914
ZM_snfall_i	796611
hnfmerge_get_1	816130
bezout_step	820567
reduce1	967385
ZMrow_divexact_inplace	976799
ZM_snfclean	1029822
snf_group	1029826
snf_pile	1071960
ZM_snf_no_divide	1235540
ZM_redpart	1552212
Minus	2060985
col_dup	2617670
col_mul	3087569
FpM_echelon	3364664
ZM_hnfmodprime	3364676
FpM_hnfend	3364795
ZM_reduce	4471055
ZM_hnfmodid	4533467
must_swap	4633728
zlm_echelon	4803124
ZM_hnfmodall	5136257
optimal_D	5185766
ZM_hnfmodall_i	5187605
FpV_Fp_mul_part_ip	5412939
subzi	6481640
count	8162018
hnfswap	8515445
ZC_lincomb1z	21912584
ZC_lincomb1z_i	21919426
FpV_red_part_ipvec	37701857
ZC_elem	41197652
affii2_or_copy_gc	48053056
reduce2	53238460
findi_normalize	106504432
findi	106517176
addzi	240302667
addmulzii	520417376

Generated by: LCOV version 1.16