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 30735-65f72320ad) Lines: 839 988 84.9 %
Date: 2026-03-15 09:23:45 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 1103
ZM_mul_worker 1103
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 16517
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 28764
ZM_equal0 32306
zv_neg 51871
ZC_z_mul 64372
ZM_mul_sw 76372
ZC_reducemodlll 97983
ZC_reducemodmatrix_i 112294
ZC_reducemodmatrix 112295
QM_QC_mul 125457
ZM_isscalar 161846
ZC_is_ei 174398
ZM_sub 181368
zm_to_ZM 183091
ZV_ZM_mul 231238
ZM_reducemodmatrix 239858
ZM_reducemodmatrix_i 239858
ZV_equal 293369
ZV_content 300486
zv_to_Flv 366646
ZC_Z_add 370262
ZV_neg_inplace 391060
Zupdate_row 402265
ZV_to_nv 431550
ZM_hnfdivrem 529525
ZM_hnfdivrem_i 529542
ZM_Z_divexact 530682
ZM_transmultosym 532221
subtract_slices 534604
QM_mul 558714
Z_ZC_sub 584349
ZM_diag_mul 592977
RgM_check_ZM 598554
add_slices 610976
ZM_isidentity 658194
ZM_isdiagonal 677204
ZM_copy 743320
ZC_lincomb_1 760074
ZM_add 844652
ZM_ishnf 878333
zv_prod 951601
ZM_zm_mul 1001341
ZM_Q_mul 1140890
ZRED 1170602
ZincrementalGS 1279235
RgV_check_ZV 1501285
ZM_neg 1733906
check_ZV 1938986
zv_prod_Z 1974438
ZV_zc_mul 2229556
ZC_Q_mul 2756545
ZV_cmp 3254403
ZM_Z_mul 3381955
ZM_equal 3500189
ZC_Z_div 3676872
ZM_det_triangular 4267091
ZC_Z_divexact 5876366
ZC_neg 6363918
ZV_equal_lg 6518826
ZV_dotsquare 6861665
ZV_togglesign 7271879
ZV_prod 8856041
ZC_sub 9156945
ZC_sub_i 9571823
ZC_hnfdivrem 10697067
ZC_hnfdivrem_i 11403027
ZM_mul_classical 13883980
sw_bound 13960498
vecsmall_prod 14694393
ZV_equal0 15013115
ZC_lincomb1 16045739
ZV_dotproduct 16644605
ZM_zc_mul 17959256
ZC_copy 18804604
ZV_dotproduct_i 19473935
zv_content 19545501
ZM_zc_mul_i 20110224
ZM_mul 21115147
ZM_mul_i 21512181
zv_canon_inplace 22921521
zv_equal0 23113192
ZM_ZC_mul 25801172
ZC_add 27093969
ZM_max_lg_i 27920444
Flc_lincomb1_inplace 29892269
zv_equal 30998906
ZC_lincomb 34909635
ZC_Z_mul 36185332
ZC_add_i 37124829
ZC_lincomb1_inplace 65768908
ZC_lincomb1_inplace_i 76831615
ZM_ZC_mul_i 78991349
ZV_max_lg_i 114368979
ZMrow_ZC_mul 137976095
zv_dotproduct 196399119
_mulii 318937678
ZMrow_ZC_mul_i 604456195

Generated by: LCOV version 1.16