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 30838-aa3635ec72) Lines: 1610 1786 90.1 % Date: 2026-04-28 09:25:50 Functions: 97 107 90.7 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364180
FpM_hnfend	3364351
FpV_Fp_mul_part_ip	5411804
FpV_red_part_ipvec	37720624
Minus	2995240
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41252785
ZC_lincomb1z	29893887
ZC_lincomb1z_i	29921817
ZM_hnf	89930
ZM_hnf_knapsack	238
ZM_hnfall	29314
ZM_hnfall_i	752587
ZM_hnfcenter	25167
ZM_hnfintersectmod	28
ZM_hnflll	309174
ZM_hnfmod	162601
ZM_hnfmodall	5140159
ZM_hnfmodall_i	5191249
ZM_hnfmodid	4537240
ZM_hnfmodprime	3364174
ZM_hnfperm	385
ZM_redpart	1689670
ZM_reduce	4473543
ZM_rowrankprofile	303657
ZM_snf	15925
ZM_snf_group	764354
ZM_snf_no_divide	1301743
ZM_snfall	64239
ZM_snfall_i	848050
ZM_snfclean	1081386
ZMrow_divexact_inplace	1070794
ZV_allequal	322715
ZV_extgcd	110572
ZV_gcdext_i	111272
ZV_hnfgcdext	707
ZV_snf_group	316935
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316934
ZV_snfclean	227092
ZpM_echelon	528214
addmulzii	582831261
addzi	276976212
affii2_or_copy_gc	54212617
allhnfmod	438502
bezout_step	890512
col_dup	3769071
col_mul	3367364
count	10215228
count2	554470
do_zero	0
findi	128628207
findi_normalize	128608489
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197474
hnf_i	62121
hnf_invimage	547530
hnf_invscale	275324
hnf_solve	461152
hnfadd	0
hnfadd_i	117297
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	303659
hnflll	7
hnfmerge_get_1	815977
hnfmod	14
hnfmodid	438488
hnfperm	14
hnfspec	0
hnfspec_i	186362
hnfswap	11609238
is_RgX	2590
mathnf0	973
mathnfspec	0
matsnf0	469
must_swap	6180916
negcmpii	602501
normalize_as_RgX	364
optimal_D	5189161
p_mat	0
reduce1	991087
reduce2	64270541
remove_0cols	336147
reverse_rows	618301
smith	385
smithall	35
smithclean	693
snf_group	1081390
snf_pile	1123485
snf_pile1	48
snfrank	154
subzi	7910179
trivsmith	0
update	841858
zlm_echelon	4802293
zv_snf_rank	0

Generated by: LCOV version 1.16