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 30550-07450a7a86) Lines: 1603 1779 90.1 % Date: 2025-11-19 09:22:25 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364040
FpM_hnfend	3364247
FpV_Fp_mul_part_ip	5411494
FpV_red_part_ipvec	37679511
Minus	2059183
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41177844
ZC_lincomb1z	21865552
ZC_lincomb1z_i	21876136
ZM_hnf	89389
ZM_hnf_knapsack	238
ZM_hnfall	29205
ZM_hnfall_i	752479
ZM_hnfcenter	25198
ZM_hnflll	232949
ZM_hnfmod	162578
ZM_hnfmodall	5133950
ZM_hnfmodall_i	5185240
ZM_hnfmodid	4531338
ZM_hnfmodprime	3364024
ZM_hnfperm	385
ZM_redpart	1551894
ZM_reduce	4469776
ZM_rowrankprofile	227420
ZM_snf	15925
ZM_snf_group	712897
ZM_snf_no_divide	1235333
ZM_snfall	64204
ZM_snfall_i	796571
ZM_snfclean	1029742
ZMrow_divexact_inplace	976639
ZV_allequal	322723
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316773
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316770
ZV_snfclean	227090
ZpM_echelon	528376
addmulzii	518276161
addzi	239588186
affii2_or_copy_gc	47841183
allhnfmod	438224
bezout_step	820464
col_dup	2616898
col_mul	3087269
count	8148359
count2	421269
do_zero	0
findi	106074241
findi_normalize	106068820
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197435
hnf_i	61689
hnf_invimage	547295
hnf_invscale	275339
hnf_solve	461158
hnfadd	0
hnfadd_i	92600
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227419
hnflll	7
hnfmerge_get_1	816136
hnfmod	14
hnfmodid	438211
hnfperm	14
hnfspec	0
hnfspec_i	134818
hnfswap	8502214
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4631491
negcmpii	602134
normalize_as_RgX	364
optimal_D	5183269
p_mat	0
reduce1	967385
reduce2	53020324
remove_0cols	335617
reverse_rows	465877
smith	385
smithall	35
smithclean	693
snf_group	1029748
snf_pile	1071865
snf_pile1	48
snfrank	154
subzi	6460120
trivsmith	0
update	771828
zlm_echelon	4801530
zv_snf_rank	0

Generated by: LCOV version 1.16