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 30764-6b81f1f3fa) Lines: 1610 1786 90.1 % Date: 2026-03-24 09:26:44 Functions: 97 107 90.7 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364206
FpM_hnfend	3364380
FpV_Fp_mul_part_ip	5412056
FpV_red_part_ipvec	37727863
Minus	2995996
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41254503
ZC_lincomb1z	29943876
ZC_lincomb1z_i	29957726
ZM_hnf	89906
ZM_hnf_knapsack	238
ZM_hnfall	29302
ZM_hnfall_i	752579
ZM_hnfcenter	25165
ZM_hnfintersectmod	28
ZM_hnflll	309287
ZM_hnfmod	162602
ZM_hnfmodall	5140373
ZM_hnfmodall_i	5191472
ZM_hnfmodid	4537445
ZM_hnfmodprime	3364176
ZM_hnfperm	385
ZM_redpart	1689663
ZM_reduce	4466813
ZM_rowrankprofile	303773
ZM_snf	15925
ZM_snf_group	764402
ZM_snf_no_divide	1301735
ZM_snfall	64239
ZM_snfall_i	848108
ZM_snfclean	1081381
ZMrow_divexact_inplace	1070815
ZV_allequal	322718
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316943
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316943
ZV_snfclean	227072
ZpM_echelon	528226
addmulzii	583786350
addzi	277963321
affii2_or_copy_gc	54293873
allhnfmod	438504
bezout_step	890486
col_dup	3769168
col_mul	3367232
count	10216912
count2	554579
do_zero	0
findi	128732163
findi_normalize	128714185
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197485
hnf_i	62109
hnf_invimage	547538
hnf_invscale	275327
hnf_solve	461164
hnfadd	0
hnfadd_i	117420
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	303774
hnflll	7
hnfmerge_get_1	815995
hnfmod	14
hnfmodid	438490
hnfperm	14
hnfspec	0
hnfspec_i	186349
hnfswap	11615743
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	6180273
negcmpii	602522
normalize_as_RgX	364
optimal_D	5189649
p_mat	0
reduce1	967385
reduce2	64335107
remove_0cols	336127
reverse_rows	618553
smith	385
smithall	35
smithclean	693
snf_group	1081384
snf_pile	1123504
snf_pile1	48
snfrank	154
subzi	7912728
trivsmith	0
update	841827
zlm_echelon	4802499
zv_snf_rank	0

Generated by: LCOV version 1.16