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
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	25201
ZM_hnfall	29158
hnf_i	61724
ZM_snfall	64204
ZM_hnf	89377
hnfadd_i	92356
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134815
ZM_hnfmod	162581
hnf_divscale	197446
ZV_snfclean	227094
ZM_rowrankprofile	227168
hnffinal	227169
ZM_hnflll	232699
hnf_invscale	275330
ZV_snf_group	316768
ZV_snfall	316768
ZV_allequal	322726
remove_0cols	335611
count2	420997
hnfmodid	438220
allhnfmod	438234
hnf_solve	461151
reverse_rows	465383
ZpM_echelon	528260
hnf_invimage	547292
negcmpii	602127
ZM_snf_group	712877
ZM_hnfall_i	752442
update	771846
ZM_snfall_i	796556
hnfmerge_get_1	816123
bezout_step	820479
reduce1	967385
ZMrow_divexact_inplace	976586
ZM_snfclean	1029733
snf_group	1029737
snf_pile	1071776
ZM_snf_no_divide	1235352
ZM_redpart	1551903
Minus	2058688
col_dup	2616890
col_mul	3087321
FpM_echelon	3364021
ZM_hnfmodprime	3364031
FpM_hnfend	3364207
ZM_reduce	4475437
ZM_hnfmodid	4531304
must_swap	4631473
zlm_echelon	4801461
ZM_hnfmodall	5133947
optimal_D	5183136
ZM_hnfmodall_i	5185232
FpV_Fp_mul_part_ip	5411176
subzi	6457330
count	8148445
hnfswap	8498868
ZC_lincomb1z	21862698
ZC_lincomb1z_i	21872528
FpV_red_part_ipvec	37677285
ZC_elem	41184092
affii2_or_copy_gc	47842030
reduce2	53012071
findi_normalize	106060367
findi	106068233
addzi	239494092
addmulzii	518145852

Generated by: LCOV version 1.16