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 30772-246cd0a587) Lines: 839 988 84.9 %
Date: 2026-03-29 09:27:34 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 22655
zm_to_Flm 22694
ZM_powu 23618
_ZM_sqr 24143
ZM_sqr 25221
ZM_sqr_i 25221
zv_z_mul 28761
ZM_equal0 32306
zv_neg 51876
ZC_z_mul 64368
ZM_mul_sw 76372
ZC_reducemodlll 97976
ZC_reducemodmatrix 112291
ZC_reducemodmatrix_i 112291
QM_QC_mul 125454
ZM_isscalar 161830
ZC_is_ei 174398
ZM_sub 181698
zm_to_ZM 183773
ZV_ZM_mul 231238
ZM_reducemodmatrix 239849
ZM_reducemodmatrix_i 239849
ZV_equal 293352
ZV_content 300483
zv_to_Flv 366646
ZC_Z_add 370256
ZV_neg_inplace 391103
Zupdate_row 402300
ZV_to_nv 431563
ZM_hnfdivrem 529502
ZM_hnfdivrem_i 529520
ZM_Z_divexact 530670
ZM_transmultosym 532221
subtract_slices 534604
QM_mul 558714
Z_ZC_sub 584374
ZM_diag_mul 592977
RgM_check_ZM 598560
add_slices 610976
ZM_isidentity 658168
ZM_isdiagonal 677168
ZM_copy 743952
ZC_lincomb_1 760059
ZM_add 844545
ZM_ishnf 878319
zv_prod 951600
ZM_zm_mul 1001675
ZM_Q_mul 1140892
ZRED 1170554
ZincrementalGS 1279189
RgV_check_ZV 1501284
ZM_neg 1733908
check_ZV 1938999
zv_prod_Z 1974530
ZV_zc_mul 2229556
ZC_Q_mul 2756548
ZV_cmp 3254386
ZM_Z_mul 3381771
ZM_equal 3500055
ZC_Z_div 3676877
ZM_det_triangular 4267536
ZC_Z_divexact 5876083
ZC_neg 6363479
ZV_equal_lg 6518470
ZV_dotsquare 6861625
ZV_togglesign 7279760
ZV_prod 8856064
ZC_sub 9157024
ZC_sub_i 9573170
ZC_hnfdivrem 10696925
ZC_hnfdivrem_i 11402797
ZM_mul_classical 13884090
sw_bound 13960461
vecsmall_prod 14694393
ZV_equal0 15013088
ZC_lincomb1 16045123
ZV_dotproduct 16643842
ZM_zc_mul 17959268
ZC_copy 18807710
ZV_dotproduct_i 19473353
zv_content 19544009
ZM_zc_mul_i 20111480
ZM_mul 21114695
ZM_mul_i 21512021
zv_canon_inplace 22921521
zv_equal0 23113588
ZM_ZC_mul 25800368
ZC_add 27089113
ZM_max_lg_i 27920389
Flc_lincomb1_inplace 29894745
ZC_lincomb 34908665
ZC_Z_mul 36173756
ZC_add_i 37118948
ZC_lincomb1_inplace 65738748
zv_equal 67992594
ZC_lincomb1_inplace_i 76799646
ZM_ZC_mul_i 78989891
ZV_max_lg_i 114365758
ZMrow_ZC_mul 137970705
zv_dotproduct 196399119
_mulii 319093826
ZMrow_ZC_mul_i 604401056

Generated by: LCOV version 1.16