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 30762-238ab8e6c0) Lines: 1610 1786 90.1 % Date: 2026-03-22 09:27:12 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	25172
ZM_hnfall	29342
hnf_i	62106
ZM_snfall	64239
ZM_hnf	89943
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfadd_i	117121
ZM_hnfmod	162602
hnfspec_i	186362
hnf_divscale	197487
ZV_snfclean	227089
hnf_invscale	275325
ZM_rowrankprofile	303480
hnffinal	303482
ZM_hnflll	308997
ZV_snfall	316941
ZV_snf_group	316942
ZV_allequal	322715
remove_0cols	336171
hnfmodid	438495
allhnfmod	438510
hnf_solve	461169
ZpM_echelon	528220
hnf_invimage	547537
count2	554282
negcmpii	602520
reverse_rows	617948
ZM_hnfall_i	752623
ZM_snf_group	764395
hnfmerge_get_1	815986
update	841808
ZM_snfall_i	848102
bezout_step	890454
reduce1	967385
ZMrow_divexact_inplace	1070816
ZM_snfclean	1081402
snf_group	1081407
snf_pile	1123501
ZM_snf_no_divide	1301740
ZM_redpart	1689703
Minus	2994000
ZM_hnfmodprime	3364206
FpM_echelon	3364274
FpM_hnfend	3364378
col_mul	3367188
col_dup	3769182
ZM_reduce	4468498
ZM_hnfmodid	4537583
zlm_echelon	4802412
ZM_hnfmodall	5140530
optimal_D	5189803
ZM_hnfmodall_i	5191626
FpV_Fp_mul_part_ip	5411990
must_swap	6173579
subzi	7903700
count	10215326
hnfswap	11601319
ZC_lincomb1z	29913730
ZC_lincomb1z_i	29927988
FpV_red_part_ipvec	37728846
ZC_elem	41253146
affii2_or_copy_gc	54259602
reduce2	64283092
findi_normalize	128610946
findi	128630621
addzi	277863478
addmulzii	583612555

Generated by: LCOV version 1.16