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 30831-19b50a36d0) Lines: 1612 1786 90.3 % Date: 2026-04-22 09:25:48 Functions: 97 107 90.7 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364112
FpM_hnfend	3364408
FpV_Fp_mul_part_ip	5411957
FpV_red_part_ipvec	37722863
Minus	2994401
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41250231
ZC_lincomb1z	29890264
ZC_lincomb1z_i	29911385
ZM_hnf	89938
ZM_hnf_knapsack	238
ZM_hnfall	29329
ZM_hnfall_i	752600
ZM_hnfcenter	25171
ZM_hnfintersectmod	28
ZM_hnflll	309050
ZM_hnfmod	162600
ZM_hnfmodall	5140213
ZM_hnfmodall_i	5191346
ZM_hnfmodid	4537297
ZM_hnfmodprime	3364122
ZM_hnfperm	385
ZM_redpart	1689700
ZM_reduce	4468669
ZM_rowrankprofile	303535
ZM_snf	15925
ZM_snf_group	764386
ZM_snf_no_divide	1301794
ZM_snfall	64237
ZM_snfall_i	848091
ZM_snfclean	1081407
ZMrow_divexact_inplace	1070800
ZV_allequal	322716
ZV_extgcd	110572
ZV_gcdext_i	111272
ZV_hnfgcdext	707
ZV_snf_group	316937
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316937
ZV_snfclean	227088
ZpM_echelon	528215
addmulzii	583004559
addzi	276992324
affii2_or_copy_gc	54230447
allhnfmod	438512
bezout_step	890600
col_dup	3769269
col_mul	3367704
count	10215568
count2	554408
do_zero	0
findi	128598956
findi_normalize	128575051
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197494
hnf_i	62114
hnf_invimage	547517
hnf_invscale	275324
hnf_solve	461151
hnfadd	0
hnfadd_i	117165
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	303534
hnflll	7
hnfmerge_get_1	815967
hnfmod	14
hnfmodid	438498
hnfperm	14
hnfspec	0
hnfspec_i	186369
hnfswap	11605802
is_RgX	2590
mathnf0	973
mathnfspec	0
matsnf0	469
must_swap	6180388
negcmpii	602522
normalize_as_RgX	364
optimal_D	5189361
p_mat	0
reduce1	991087
reduce2	64252088
remove_0cols	336148
reverse_rows	618052
smith	385
smithall	35
smithclean	693
snf_group	1081415
snf_pile	1123502
snf_pile1	48
snfrank	154
subzi	7907452
trivsmith	0
update	841948
zlm_echelon	4802302
zv_snf_rank	0

Generated by: LCOV version 1.16