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:

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 - ZV.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30764-6b81f1f3fa) Lines: 839 988 84.9 %
Date: 2026-03-25 09:26:52 Functions: 131 149 87.9 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
ZC_ZV_mul 0
ZC_Z_sub 0
ZM_ZV_divrem 0
ZM_max_expi 0
ZM_max_expi_i 0
ZM_multosym 0
ZM_nc_mul_i 0
ZM_nm_mul 0
ZM_pow 0
ZM_reducemodlll 0
ZM_sqr_fast 0
ZM_sqr_slice 0
ZM_sqr_worker 0
ZM_togglesign 0
ZV_max_expi 0
ZV_max_expi_i 0
nm_Z_mul 0
zv_sumpart 0
ZV_ZV_divrem 7
ZM_modhnf 14
ZM_mul_diag 21
RgM_issquare 42
ZMV_to_zmV 49
matmodhnf 49
ZV_sum 77
zv_abs 77
matmodhnf_check 98
zmV_to_ZMV 126
zv_neg_inplace 126
ZC_modhnf 280
_ZM_mul 280
ZM_divexactu 441
QM_sqr 700
ZM_mul_fast 839
ZM_to_zm 1022
ZM_mul_slice 1105
ZM_mul_worker 1105
zvV_equal 1638
ZC_divexactu 2261
ZM_transmul 2289
zv_ZM_mul 2408
ZM_supnorm 4260
ZV_max_lg 10640
ZMrow_equal0 16231
zv_sum 16509
ZM_Z_div 19308
ZV_abscmp 19747
ZM_max_lg 22655
zm_to_Flm 22694
ZM_powu 23618
_ZM_sqr 24143
ZM_sqr 25221
ZM_sqr_i 25221
zv_z_mul 28771
ZM_equal0 32306
zv_neg 51871
ZC_z_mul 64365
ZM_mul_sw 76372
ZC_reducemodlll 97980
ZC_reducemodmatrix 112292
ZC_reducemodmatrix_i 112292
QM_QC_mul 125454
ZM_isscalar 161877
ZC_is_ei 174398
ZM_sub 181932
zm_to_ZM 184004
ZV_ZM_mul 231238
ZM_reducemodmatrix 239847
ZM_reducemodmatrix_i 239848
ZV_equal 293366
ZV_content 300483
zv_to_Flv 366646
ZC_Z_add 370261
ZV_neg_inplace 391176
Zupdate_row 402250
ZV_to_nv 431548
ZM_hnfdivrem 529467
ZM_hnfdivrem_i 529483
ZM_Z_divexact 530677
ZM_transmultosym 532221
subtract_slices 534604
QM_mul 558714
Z_ZC_sub 584356
ZM_diag_mul 593016
RgM_check_ZM 598559
add_slices 610976
ZM_isidentity 658256
ZM_isdiagonal 677165
ZM_copy 744223
ZC_lincomb_1 760380
ZM_add 844603
ZM_ishnf 878331
zv_prod 951610
ZM_zm_mul 1001907
ZM_Q_mul 1140894
ZRED 1170582
ZincrementalGS 1279208
RgV_check_ZV 1501288
ZM_neg 1734059
check_ZV 1938997
zv_prod_Z 1974532
ZV_zc_mul 2229556
ZC_Q_mul 2756540
ZV_cmp 3254508
ZM_Z_mul 3381919
ZM_equal 3500198
ZC_Z_div 3676885
ZM_det_triangular 4267879
ZC_Z_divexact 5876431
ZC_neg 6364463
ZV_equal_lg 6518763
ZV_dotsquare 6861762
ZV_togglesign 7283368
ZV_prod 8856074
ZC_sub 9157136
ZC_sub_i 9574243
ZC_hnfdivrem 10697274
ZC_hnfdivrem_i 11403103
ZM_mul_classical 13884908
sw_bound 13961285
vecsmall_prod 14694393
ZV_equal0 15016057
ZC_lincomb1 16045707
ZV_dotproduct 16645064
ZM_zc_mul 17959126
ZC_copy 18810347
ZV_dotproduct_i 19474277
zv_content 19543949
ZM_zc_mul_i 20112246
ZM_mul 21116120
ZM_mul_i 21513117
zv_canon_inplace 22921521
zv_equal0 23113613
ZM_ZC_mul 25801743
ZC_add 27095436
ZM_max_lg_i 27922118
Flc_lincomb1_inplace 29892812
zv_equal 30999350
ZC_lincomb 34914089
ZC_Z_mul 36184658
ZC_add_i 37125015
ZC_lincomb1_inplace 65763220
ZC_lincomb1_inplace_i 76828424
ZM_ZC_mul_i 78997772
ZV_max_lg_i 114379487
ZMrow_ZC_mul 137972730
zv_dotproduct 196399119
_mulii 319094855
ZMrow_ZC_mul_i 604493672

Generated by: LCOV version 1.16