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 30674-be81ecfdd4) Lines: 1603 1779 90.1 % Date: 2026-02-12 09:23:52 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	25164
ZM_hnfall	29314
hnf_i	61709
ZM_snfall	64187
ZM_hnf	89518
hnfadd_i	92530
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134573
ZM_hnfmod	162551
hnf_divscale	197479
ZV_snfclean	227081
ZM_rowrankprofile	227105
hnffinal	227105
ZM_hnflll	232635
hnf_invscale	275325
ZV_snf_group	316940
ZV_snfall	316940
ZV_allequal	322719
remove_0cols	335756
count2	421104
hnfmodid	438106
allhnfmod	438120
hnf_solve	461169
reverse_rows	465263
ZpM_echelon	528153
hnf_invimage	547536
negcmpii	602531
ZM_snf_group	712657
ZM_hnfall_i	752590
update	771861
ZM_snfall_i	796319
hnfmerge_get_1	816001
bezout_step	820474
reduce1	967385
ZMrow_divexact_inplace	976463
ZM_snfclean	1029651
snf_group	1029654
snf_pile	1071797
ZM_snf_no_divide	1235365
ZM_redpart	1551983
Minus	2055699
col_dup	2614811
col_mul	3087384
FpM_echelon	3364240
ZM_hnfmodprime	3364242
FpM_hnfend	3364414
ZM_reduce	4473417
ZM_hnfmodid	4536757
must_swap	4621719
zlm_echelon	4801555
ZM_hnfmodall	5139276
optimal_D	5188408
ZM_hnfmodall_i	5189665
FpV_Fp_mul_part_ip	5411574
subzi	6470494
count	8160902
hnfswap	8501106
ZC_lincomb1z	21876191
ZC_lincomb1z_i	21882724
FpV_red_part_ipvec	37714648
ZC_elem	41209936
affii2_or_copy_gc	47989093
reduce2	53175972
findi_normalize	106361592
findi	106365434
addzi	240161552
addmulzii	519797557

Generated by: LCOV version 1.16