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: 2026-03-26 09:27:02 Functions: 97 107 90.7 % 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
ZM_hnfintersectmod	28
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	25165
ZM_hnfall	29342
hnf_i	62130
ZM_snfall	64237
ZM_hnf	89967
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfadd_i	117327
ZM_hnfmod	162599
hnfspec_i	186345
hnf_divscale	197486
ZV_snfclean	227094
hnf_invscale	275323
ZM_rowrankprofile	303683
hnffinal	303685
ZM_hnflll	309199
ZV_snf_group	316942
ZV_snfall	316942
ZV_allequal	322716
remove_0cols	336191
hnfmodid	438492
allhnfmod	438506
hnf_solve	461147
ZpM_echelon	528235
hnf_invimage	547524
count2	554820
negcmpii	602531
reverse_rows	618379
ZM_hnfall_i	752612
ZM_snf_group	764371
hnfmerge_get_1	815995
update	841926
ZM_snfall_i	848077
bezout_step	890583
reduce1	967385
ZMrow_divexact_inplace	1070765
ZM_snfclean	1081375
snf_group	1081400
snf_pile	1123490
ZM_snf_no_divide	1301806
ZM_redpart	1689797
Minus	2994666
ZM_hnfmodprime	3364249
FpM_echelon	3364291
FpM_hnfend	3364388
col_mul	3367649
col_dup	3769124
ZM_reduce	4475063
ZM_hnfmodid	4537563
zlm_echelon	4802521
ZM_hnfmodall	5140497
optimal_D	5189734
ZM_hnfmodall_i	5191610
FpV_Fp_mul_part_ip	5412034
must_swap	6178322
subzi	7908540
count	10216784
hnfswap	11610368
ZC_lincomb1z	29930728
ZC_lincomb1z_i	29947949
FpV_red_part_ipvec	37728526
ZC_elem	41264046
affii2_or_copy_gc	54278584
reduce2	64317862
findi_normalize	128670326
findi	128698914
addzi	277854415
addmulzii	583666409

Generated by: LCOV version 1.16