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 30660-09c6d0ed2e) Lines: 839 988 84.9 %
Date: 2026-02-01 09:23:44 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 16516
ZM_Z_div 19308
ZV_abscmp 19747
ZM_max_lg 22661
zm_to_Flm 22694
ZM_powu 23618
_ZM_sqr 24143
ZM_sqr 25221
ZM_sqr_i 25221
zv_z_mul 28657
ZM_equal0 32292
zv_neg 51861
ZC_z_mul 64355
ZM_mul_sw 76375
ZC_reducemodlll 97985
ZC_reducemodmatrix_i 112294
ZC_reducemodmatrix 112296
QM_QC_mul 126986
ZM_sub 157011
zm_to_ZM 158139
ZM_isscalar 161913
ZC_is_ei 174398
ZV_ZM_mul 231238
ZM_reducemodmatrix 239858
ZM_reducemodmatrix_i 239859
ZV_equal 293344
ZV_content 300477
zv_to_Flv 366646
ZC_Z_add 366791
ZV_neg_inplace 391071
Zupdate_row 402363
ZM_hnfdivrem 491786
ZM_hnfdivrem_i 491805
ZV_to_nv 496501
ZM_Z_divexact 530261
ZM_transmultosym 532221
subtract_slices 534625
QM_mul 558714
ZM_diag_mul 578789
Z_ZC_sub 584380
RgM_check_ZM 598163
add_slices 611000
ZM_isdiagonal 625525
ZM_isidentity 658086
ZM_copy 667185
ZC_lincomb_1 757634
ZM_ishnf 826630
ZM_add 844497
zv_prod 950952
ZM_zm_mul 977034
ZM_Q_mul 1140919
ZRED 1170644
ZincrementalGS 1279245
RgV_check_ZV 1501241
ZM_neg 1734109
zv_prod_Z 1922695
check_ZV 1937484
ZV_zc_mul 2229556
ZC_Q_mul 2758074
ZV_cmp 3253733
ZM_Z_mul 3381322
ZM_equal 3499442
ZC_Z_div 3676992
ZM_det_triangular 4147787
ZV_togglesign 5124425
ZC_Z_divexact 5779789
ZC_neg 6357668
ZV_equal_lg 6517814
ZV_dotsquare 6859675
ZV_prod 8855818
ZC_sub 9094302
ZC_sub_i 9427316
ZC_hnfdivrem 10697168
ZC_hnfdivrem_i 11324066
ZM_mul_classical 13781788
sw_bound 13858051
vecsmall_prod 14694393
ZV_equal0 14715480
ZC_lincomb1 16037737
ZV_dotproduct 16641280
ZM_zc_mul 17959861
ZC_copy 18147371
ZV_dotproduct_i 19471620
zv_content 19540683
ZM_zc_mul_i 20028960
ZM_mul 20964855
ZM_mul_i 21362297
zv_canon_inplace 22921521
zv_equal0 23113166
ZM_ZC_mul 25802844
ZC_add 27073444
ZM_max_lg_i 27715685
Flc_lincomb1_inplace 29896894
zv_equal 31000895
ZC_lincomb 34827105
ZC_Z_mul 36156793
ZC_add_i 37104314
ZC_lincomb1_inplace 64147125
ZC_lincomb1_inplace_i 75207983
ZM_ZC_mul_i 77645161
ZV_max_lg_i 111653577
ZMrow_ZC_mul 137957979
zv_dotproduct 196399119
_mulii 319218437
ZMrow_ZC_mul_i 599896002

Generated by: LCOV version 1.16