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 30822-5d69697d32) Lines: 1610 1786 90.1 % Date: 2026-04-17 09:24:44 Functions: 97 107 90.7 % Legend: Lines: hit not hit

Function Name	Hit count
FpM_echelon	3364147
FpM_hnfend	3364382
FpV_Fp_mul_part_ip	5411988
FpV_red_part_ipvec	37727145
Minus	2995131
RgC_elem	511
RgM_hnfall	42
RgM_reduce	84
RgXM_snf	49
ZC_elem	41263389
ZC_lincomb1z	29910154
ZC_lincomb1z_i	29926115
ZM_hnf	90016
ZM_hnf_knapsack	238
ZM_hnfall	29370
ZM_hnfall_i	752641
ZM_hnfcenter	25158
ZM_hnfintersectmod	28
ZM_hnflll	309167
ZM_hnfmod	162602
ZM_hnfmodall	5140498
ZM_hnfmodall_i	5191604
ZM_hnfmodid	4537554
ZM_hnfmodprime	3364139
ZM_hnfperm	385
ZM_redpart	1689807
ZM_reduce	4475302
ZM_rowrankprofile	303650
ZM_snf	15925
ZM_snf_group	764406
ZM_snf_no_divide	1301798
ZM_snfall	64239
ZM_snfall_i	848115
ZM_snfclean	1081389
ZMrow_divexact_inplace	1070834
ZV_allequal	322709
ZV_extgcd	110572
ZV_gcdext_i	111272
ZV_hnfgcdext	707
ZV_snf_group	316912
ZV_snf_rank	91
ZV_snf_rank_u	49
ZV_snf_trunc	0
ZV_snfall	316936
ZV_snfclean	227088
ZpM_echelon	528205
addmulzii	583562564
addzi	277299321
affii2_or_copy_gc	54253823
allhnfmod	438512
bezout_step	890605
col_dup	3769081
col_mul	3367797
count	10216035
count2	554509
do_zero	0
findi	128670288
findi_normalize	128640999
gbezout_step	882
gsmith	0
gsmithall	0
gsnf_no_divide	196
hnf	14
hnf_divscale	197497
hnf_i	62151
hnf_invimage	547535
hnf_invscale	275322
hnf_solve	461163
hnfadd	0
hnfadd_i	117286
hnfall	14
hnfallgen	21
hnfdivide	133
hnffinal	303652
hnflll	7
hnfmerge_get_1	815969
hnfmod	14
hnfmodid	438499
hnfperm	14
hnfspec	0
hnfspec_i	186364
hnfswap	11612010
is_RgX	2590
mathnf0	973
mathnfspec	0
matsnf0	469
must_swap	6183346
negcmpii	602520
normalize_as_RgX	364
optimal_D	5189749
p_mat	0
reduce1	991087
reduce2	64292133
remove_0cols	336227
reverse_rows	618282
smith	385
smithall	35
smithclean	693
snf_group	1081389
snf_pile	1123478
snf_pile1	48
snfrank	154
subzi	7912104
trivsmith	0
update	841971
zlm_echelon	4802246
zv_snf_rank	0

Generated by: LCOV version 1.16