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 30552-d1d0643eee) Lines: 1603 1779 90.1 % Date: 2025-11-24 09:22:36 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364050
FpM_hnfend	3364256
FpV_Fp_mul_part_ip	5411690
FpV_red_part_ipvec	37682301
Minus	2058802
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41176616
ZC_lincomb1z	21865776
ZC_lincomb1z_i	21876955
ZM_hnf	89302
ZM_hnf_knapsack	238
ZM_hnfall	29102
ZM_hnfall_i	752387
ZM_hnfcenter	25199
ZM_hnflll	232780
ZM_hnfmod	162580
ZM_hnfmodall	5134008
ZM_hnfmodall_i	5185283
ZM_hnfmodid	4531371
ZM_hnfmodprime	3364052
ZM_hnfperm	385
ZM_redpart	1551897
ZM_reduce	4468382
ZM_rowrankprofile	227250
ZM_snf	15925
ZM_snf_group	712890
ZM_snf_no_divide	1235324
ZM_snfall	64203
ZM_snfall_i	796547
ZM_snfclean	1029747
ZMrow_divexact_inplace	976643
ZV_allequal	322722
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316772
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316772
ZV_snfclean	227088
ZpM_echelon	528386
addmulzii	518232022
addzi	239565355
affii2_or_copy_gc	47840929
allhnfmod	438228
bezout_step	820437
col_dup	2616862
col_mul	3087159
count	8149977
count2	421149
do_zero	0
findi	106069791
findi_normalize	106060108
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197457
hnf_i	61705
hnf_invimage	547295
hnf_invscale	275338
hnf_solve	461162
hnfadd	0
hnfadd_i	92437
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	227250
hnflll	7
hnfmerge_get_1	816143
hnfmod	14
hnfmodid	438214
hnfperm	14
hnfspec	0
hnfspec_i	134814
hnfswap	8501993
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	4632060
negcmpii	602129
normalize_as_RgX	364
optimal_D	5183307
p_mat	0
reduce1	967385
reduce2	53017548
remove_0cols	335534
reverse_rows	465546
smith	385
smithall	35
smithclean	693
snf_group	1029752
snf_pile	1071864
snf_pile1	48
snfrank	154
subzi	6459311
trivsmith	0
update	771812
zlm_echelon	4801559
zv_snf_rank	0

Generated by: LCOV version 1.16