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
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
ZM_hnfintersectmod	28
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	25167
ZM_hnfall	29336
hnf_i	62123
ZM_snfall	64239
ZM_hnf	89954
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfadd_i	117283
ZM_hnfmod	162602
hnfspec_i	186356
hnf_divscale	197492
ZV_snfclean	227090
hnf_invscale	275320
ZM_rowrankprofile	303643
hnffinal	303643
ZM_hnflll	309158
ZV_snfall	316938
ZV_snf_group	316939
ZV_allequal	322712
remove_0cols	336172
hnfmodid	438493
allhnfmod	438507
hnf_solve	461169
ZpM_echelon	528231
hnf_invimage	547534
count2	554638
negcmpii	602508
reverse_rows	618289
ZM_hnfall_i	752613
ZM_snf_group	764371
hnfmerge_get_1	815955
update	841840
ZM_snfall_i	848081
bezout_step	890482
reduce1	967385
ZMrow_divexact_inplace	1070819
ZM_snfclean	1081403
snf_group	1081410
snf_pile	1123490
ZM_snf_no_divide	1301751
ZM_redpart	1689637
Minus	2995652
FpM_echelon	3364141
ZM_hnfmodprime	3364151
FpM_hnfend	3364394
col_mul	3367289
col_dup	3769082
ZM_reduce	4473926
ZM_hnfmodid	4536893
zlm_echelon	4802320
ZM_hnfmodall	5139838
optimal_D	5188916
ZM_hnfmodall_i	5190923
FpV_Fp_mul_part_ip	5411911
must_swap	6176784
subzi	7908932
count	10215570
hnfswap	11608016
ZC_lincomb1z	29906163
ZC_lincomb1z_i	29933375
FpV_red_part_ipvec	37716993
ZC_elem	41254894
affii2_or_copy_gc	54239275
reduce2	64299051
findi_normalize	128661024
findi	128678506
addzi	276917313
addmulzii	582924847

Generated by: LCOV version 1.16