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) Coverage Total Hit Test: PARI/GP v2.19.0 lcov report (development 31092-e6893b0017) Lines: 90.2 % 1787 1611 Test Date: 2026-08-12 17:02:34 Functions: 90.7 % 107 97 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
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
normalize_as_RgX	364
ZM_hnfperm	385
smith	385
matsnf0	469
RgC_elem	511
gbezout_step	882
smithclean	952
ZV_hnfgcdext	1162
mathnf0	1428
is_RgX	2590
ZM_snf	16184
ZM_hnfcenter	25388
ZM_hnfall	29160
hnf_i	62620
ZM_snfall	64246
ZM_hnf	90275
ZV_extgcd	110579
ZV_gcdext_i	111734
hnfadd_i	117171
ZM_hnfmod	159548
hnfspec_i	186568
hnf_divscale	213307
ZV_snfclean	227101
hnf_invscale	275331
ZM_rowrankprofile	303739
hnffinal	303739
ZM_hnflll	309255
ZV_snf_group	316947
ZV_snfall	316947
ZV_allequal	322729
remove_0cols	336507
hnfmodid	438570
allhnfmod	438584
hnf_solve	461209
ZpM_echelon	529494
hnf_invimage	547578
count2	555128
negcmpii	602537
reverse_rows	618510
ZM_hnfall_i	752495
ZM_snf_group	764697
hnfmerge_get_1	816035
update	842406
ZM_snfall_i	848676
bezout_step	890972
reduce1	1016504
ZMrow_divexact_inplace	1071268
ZM_snfclean	1081644
snf_group	1081644
snf_pile	1124029
ZM_snf_no_divide	1302013
ZM_redpart	1690791
Minus	2997730
FpM_echelon	3366404
FpM_hnfend	3366404
ZM_hnfmodprime	3366404
col_mul	3369624
col_dup	3771848
ZM_reduce	4461698
ZM_hnfmodid	4570628
zlm_echelon	4808650
ZM_hnfmodall	5170693
optimal_D	5220292
ZM_hnfmodall_i	5221930
FpV_Fp_mul_part_ip	5411870
must_swap	6206378
subzi	7928283
count	10218316
hnfswap	11658860
ZC_lincomb1z	30076026
ZC_lincomb1z_i	30076026
FpV_red_part_ipvec	37981252
ZC_elem	41512281
affii2_or_copy_gc	54527670
reduce2	64583185
findi	129168186
findi_normalize	129168186
addzi	283885276
addmulzii	592136765

Generated by: LCOV version 2.0-1