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 30711-c92306d4b4) Lines: 839 988 84.9 %
Date: 2026-02-24 09:25:14 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 16513
ZM_Z_div 19308
ZV_abscmp 19747
ZM_max_lg 22662
zm_to_Flm 22694
ZM_powu 23618
_ZM_sqr 24143
ZM_sqr 25221
ZM_sqr_i 25221
zv_z_mul 28679
ZM_equal0 32306
zv_neg 51885
ZC_z_mul 64348
ZM_mul_sw 76376
ZC_reducemodlll 97987
ZC_reducemodmatrix 112298
ZC_reducemodmatrix_i 112298
QM_QC_mul 127091
ZM_isscalar 161857
ZC_is_ei 174398
ZM_sub 181547
zm_to_ZM 182673
ZV_ZM_mul 231238
ZM_reducemodmatrix_i 239855
ZM_reducemodmatrix 239856
ZV_equal 293357
ZV_content 300471
zv_to_Flv 366646
ZC_Z_add 366787
ZV_neg_inplace 391112
Zupdate_row 402373
ZV_to_nv 431557
ZM_hnfdivrem 529460
ZM_hnfdivrem_i 529472
ZM_Z_divexact 530283
ZM_transmultosym 532221
subtract_slices 534632
QM_mul 558714
Z_ZC_sub 584390
ZM_diag_mul 592944
RgM_check_ZM 598167
add_slices 611008
ZM_isidentity 658024
ZM_isdiagonal 677196
ZM_copy 743449
ZC_lincomb_1 759834
ZM_add 844385
ZM_ishnf 878324
zv_prod 951150
ZM_zm_mul 1001570
ZM_Q_mul 1140926
ZRED 1170595
ZincrementalGS 1279218
RgV_check_ZV 1501251
ZM_neg 1734062
check_ZV 1937488
zv_prod_Z 1974227
ZV_zc_mul 2229556
ZC_Q_mul 2758187
ZV_cmp 3253732
ZM_Z_mul 3381199
ZM_equal 3499395
ZC_Z_div 3676954
ZM_det_triangular 4267301
ZC_Z_divexact 5874924
ZC_neg 6357492
ZV_equal_lg 6517651
ZV_dotsquare 6859637
ZV_togglesign 7274221
ZV_prod 8855999
ZC_sub 9156771
ZC_sub_i 9572070
ZC_hnfdivrem 10697032
ZC_hnfdivrem_i 11403054
ZM_mul_classical 13882998
sw_bound 13959358
vecsmall_prod 14694393
ZV_equal0 15007347
ZC_lincomb1 16043228
ZV_dotproduct 16640338
ZM_zc_mul 17959190
ZC_copy 18799804
ZV_dotproduct_i 19470896
zv_content 19539935
ZM_zc_mul_i 20110620
ZM_mul 21114307
ZM_mul_i 21511529
zv_canon_inplace 22921521
zv_equal0 23113200
ZM_ZC_mul 25802306
ZC_add 27079758
ZM_max_lg_i 27918334
Flc_lincomb1_inplace 29900043
zv_equal 31000957
ZC_lincomb 34907320
ZC_Z_mul 36163522
ZC_add_i 37109771
ZC_lincomb1_inplace 65747146
ZC_lincomb1_inplace_i 76807344
ZM_ZC_mul_i 78985877
ZV_max_lg_i 114352804
ZMrow_ZC_mul 137955013
zv_dotproduct 196399119
_mulii 318938063
ZMrow_ZC_mul_i 604347212

Generated by: LCOV version 1.16