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 30462-6c568f4018) Lines: 1602 1778 90.1 % Date: 2025-08-10 09:24:05 Functions: 96 106 90.6 % 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
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	25199
ZM_hnfall	29189
hnf_i	61720
ZM_snfall	64197
ZM_hnf	89432
hnfadd_i	92511
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134811
ZM_hnfmod	162566
hnf_divscale	197434
ZV_snfclean	227087
ZM_rowrankprofile	227322
hnffinal	227322
ZM_hnflll	232852
hnf_invscale	275321
ZV_snf_group	316769
ZV_snfall	316769
ZV_allequal	322722
remove_0cols	335627
count2	421217
hnfmodid	438211
allhnfmod	438225
hnf_solve	461166
reverse_rows	465673
ZpM_echelon	528260
hnf_invimage	547294
negcmpii	602133
ZM_snf_group	712860
ZM_hnfall_i	752465
update	771798
ZM_snfall_i	796528
hnfmerge_get_1	816117
bezout_step	820446
reduce1	967385
ZMrow_divexact_inplace	976632
ZM_snfclean	1029724
snf_group	1029728
snf_pile	1071854
ZM_snf_no_divide	1235327
ZM_redpart	1551929
Minus	2059173
col_dup	2616843
col_mul	3087130
FpM_echelon	3361898
ZM_hnfmodprime	3361905
FpM_hnfend	3362080
ZM_reduce	4477810
ZM_hnfmodid	4529069
must_swap	4633152
zlm_echelon	4799266
ZM_hnfmodall	5131664
optimal_D	5181032
ZM_hnfmodall_i	5182964
FpV_Fp_mul_part_ip	5409145
subzi	6461094
count	8149266
hnfswap	8502293
ZC_lincomb1z	21868511
ZC_lincomb1z_i	21878441
FpV_red_part_ipvec	37669007
ZC_elem	41181818
affii2_or_copy_gc	47845956
reduce2	53025687
findi_normalize	106082636
findi	106091195
addzi	239576190
addmulzii	518380309

Generated by: LCOV version 1.16