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 30802-b11b770002) Lines: 1610 1786 90.1 % Date: 2026-04-11 09:26:21 Functions: 97 107 90.7 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364141
FpM_hnfend	3364394
FpV_Fp_mul_part_ip	5411911
FpV_red_part_ipvec	37716993
Minus	2995652
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41254894
ZC_lincomb1z	29906163
ZC_lincomb1z_i	29933375
ZM_hnf	89954
ZM_hnf_knapsack	238
ZM_hnfall	29336
ZM_hnfall_i	752613
ZM_hnfcenter	25167
ZM_hnfintersectmod	28
ZM_hnflll	309158
ZM_hnfmod	162602
ZM_hnfmodall	5139838
ZM_hnfmodall_i	5190923
ZM_hnfmodid	4536893
ZM_hnfmodprime	3364151
ZM_hnfperm	385
ZM_redpart	1689637
ZM_reduce	4473926
ZM_rowrankprofile	303643
ZM_snf	15925
ZM_snf_group	764371
ZM_snf_no_divide	1301751
ZM_snfall	64239
ZM_snfall_i	848081
ZM_snfclean	1081403
ZMrow_divexact_inplace	1070819
ZV_allequal	322712
ZV_extgcd	110572
ZV_gcdext_i	110586
ZV_hnfgcdext	21
ZV_snf_group	316939
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316938
ZV_snfclean	227090
ZpM_echelon	528231
addmulzii	582924847
addzi	276917313
affii2_or_copy_gc	54239275
allhnfmod	438507
bezout_step	890482
col_dup	3769082
col_mul	3367289
count	10215570
count2	554638
do_zero	0
findi	128678506
findi_normalize	128661024
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197492
hnf_i	62123
hnf_invimage	547534
hnf_invscale	275320
hnf_solve	461169
hnfadd	0
hnfadd_i	117283
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	303643
hnflll	7
hnfmerge_get_1	815955
hnfmod	14
hnfmodid	438493
hnfperm	14
hnfspec	0
hnfspec_i	186356
hnfswap	11608016
is_RgX	2590
mathnf0	287
mathnfspec	0
matsnf0	469
must_swap	6176784
negcmpii	602508
normalize_as_RgX	364
optimal_D	5188916
p_mat	0
reduce1	967385
reduce2	64299051
remove_0cols	336172
reverse_rows	618289
smith	385
smithall	35
smithclean	693
snf_group	1081410
snf_pile	1123490
snf_pile1	48
snfrank	154
subzi	7908932
trivsmith	0
update	841840
zlm_echelon	4802320
zv_snf_rank	0

Generated by: LCOV version 1.16