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 30485-b27144eac9) Lines: 1602 1778 90.1 % Date: 2025-09-13 09:24:24 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364021
FpM_hnfend	3364207
FpV_Fp_mul_part_ip	5411176
FpV_red_part_ipvec	37677285
Minus	2058688
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41184092
ZC_lincomb1z	21862698
ZC_lincomb1z_i	21872528
ZM_hnf	89377
ZM_hnf_knapsack	238
ZM_hnfall	29158
ZM_hnfall_i	752442
ZM_hnfcenter	25201
ZM_hnflll	232699
ZM_hnfmod	162581
ZM_hnfmodall	5133947
ZM_hnfmodall_i	5185232
ZM_hnfmodid	4531304
ZM_hnfmodprime	3364031
ZM_hnfperm	385
ZM_redpart	1551903
ZM_reduce	4475437
ZM_rowrankprofile	227168
ZM_snf	15925
ZM_snf_group	712877
ZM_snf_no_divide	1235352
ZM_snfall	64204
ZM_snfall_i	796556
ZM_snfclean	1029733
ZMrow_divexact_inplace	976586
ZV_allequal	322726
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316768
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316768
ZV_snfclean	227094
ZpM_echelon	528260
addmulzii	518145852
addzi	239494092
affii2_or_copy_gc	47842030
allhnfmod	438234
bezout_step	820479
col_dup	2616890
col_mul	3087321
count	8148445
count2	420997
do_zero	0
findi	106068233
findi_normalize	106060367
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197446
hnf_i	61724
hnf_invimage	547292
hnf_invscale	275330
hnf_solve	461151
hnfadd	0
hnfadd_i	92356
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227169
hnflll	7
hnfmerge_get_1	816123
hnfmod	14
hnfmodid	438220
hnfperm	14
hnfspec	0
hnfspec_i	134815
hnfswap	8498868
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4631473
negcmpii	602127
normalize_as_RgX	364
optimal_D	5183136
p_mat	0
reduce1	967385
reduce2	53012071
remove_0cols	335611
reverse_rows	465383
smith	385
smithall	35
smithclean	693
snf_group	1029737
snf_pile	1071776
snf_pile1	48
snfrank	154
subzi	6457330
trivsmith	0
update	771846
zlm_echelon	4801461
zv_snf_rank	0

Generated by: LCOV version 1.16