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 30582-6e9af8ee1d) Lines: 839 988 84.9 %
Date: 2025-12-20 09:23:49 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 16514
ZM_Z_div 19308
ZV_abscmp 19747
zm_to_Flm 22694
ZM_max_lg 22788
ZM_powu 23617
_ZM_sqr 24142
ZM_sqr 25221
ZM_sqr_i 25221
zv_z_mul 28642
ZM_equal0 32292
zv_neg 51848
ZC_z_mul 64368
ZM_mul_sw 76382
ZC_reducemodlll 97982
ZC_reducemodmatrix_i 112293
ZC_reducemodmatrix 112294
QM_QC_mul 127000
ZM_sub 156857
zm_to_ZM 157969
ZM_isscalar 161093
ZC_is_ei 174398
ZV_ZM_mul 231238
ZM_reducemodmatrix_i 239857
ZM_reducemodmatrix 239859
ZV_equal 293379
ZV_content 300484
zv_to_Flv 366646
ZC_Z_add 366847
ZV_neg_inplace 391102
Zupdate_row 402314
ZM_hnfdivrem 491898
ZM_hnfdivrem_i 491913
ZV_to_nv 496485
ZM_Z_divexact 530595
ZM_transmultosym 532221
subtract_slices 534674
QM_mul 558714
ZM_diag_mul 578884
Z_ZC_sub 584561
RgM_check_ZM 598424
add_slices 611056
ZM_isdiagonal 625735
ZM_isidentity 658192
ZM_copy 667272
ZC_lincomb_1 757758
ZM_ishnf 826898
ZM_add 844617
zv_prod 950979
ZM_zm_mul 976864
ZM_Q_mul 1140948
ZRED 1170567
ZincrementalGS 1279210
RgV_check_ZV 1501290
ZM_neg 1734347
zv_prod_Z 1923001
check_ZV 1937972
ZV_zc_mul 2229556
ZC_Q_mul 2758116
ZV_cmp 3254150
ZM_Z_mul 3381686
ZM_equal 3500018
ZC_Z_div 3676943
ZM_det_triangular 4146952
ZV_togglesign 5132418
ZC_Z_divexact 5782274
ZC_neg 6358916
ZV_equal_lg 6519418
ZV_dotsquare 6860292
ZV_prod 8855793
ZC_sub 9095311
ZC_sub_i 9428049
ZC_hnfdivrem 10695738
ZC_hnfdivrem_i 11322728
ZM_mul_classical 13783908
sw_bound 13860268
vecsmall_prod 14694393
ZV_equal0 14719931
ZC_lincomb1 16034896
ZV_dotproduct 16645330
ZM_zc_mul 17519907
ZC_copy 18150191
zv_content 18815433
ZV_dotproduct_i 19475252
ZM_zc_mul_i 19588736
ZM_mul 20965346
ZM_mul_i 21362566
zv_canon_inplace 22921521
zv_equal0 23113200
ZM_ZC_mul 25796572
ZC_add 27094766
ZM_max_lg_i 27720143
Flc_lincomb1_inplace 29908358
zv_equal 31000754
ZC_lincomb 34811555
ZC_Z_mul 36177077
ZC_add_i 37125117
ZC_lincomb1_inplace 64148441
ZC_lincomb1_inplace_i 75212677
ZM_ZC_mul_i 77649846
ZV_max_lg_i 111677526
ZMrow_ZC_mul 137353057
zv_dotproduct 196399119
_mulii 319217841
ZMrow_ZC_mul_i 599351105

Generated by: LCOV version 1.16