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 30572-91e0396466) Lines: 839 988 84.9 %
Date: 2025-12-13 09:22:30 Functions: 131 149 87.9 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Flc_lincomb1_inplace 29904757
QM_QC_mul 127014
QM_mul 558714
QM_sqr 700
RgM_check_ZM 598454
RgM_issquare 42
RgV_check_ZV 1501308
ZC_Q_mul 2758163
ZC_ZV_mul 0
ZC_Z_add 366907
ZC_Z_div 3677023
ZC_Z_divexact 5782017
ZC_Z_mul 36174624
ZC_Z_sub 0
ZC_add 27093101
ZC_add_i 37122856
ZC_copy 18149992
ZC_divexactu 2261
ZC_hnfdivrem 10696310
ZC_hnfdivrem_i 11323322
ZC_is_ei 174398
ZC_lincomb 34811616
ZC_lincomb1 16035410
ZC_lincomb1_inplace 64147181
ZC_lincomb1_inplace_i 75213098
ZC_lincomb_1 757688
ZC_modhnf 280
ZC_neg 6359148
ZC_reducemodlll 97982
ZC_reducemodmatrix 112292
ZC_reducemodmatrix_i 112292
ZC_sub 9095121
ZC_sub_i 9427765
ZC_z_mul 64392
ZMV_to_zmV 49
ZM_Q_mul 1140958
ZM_ZC_mul 25797309
ZM_ZC_mul_i 77650340
ZM_ZV_divrem 0
ZM_Z_div 19308
ZM_Z_divexact 530663
ZM_Z_mul 3381540
ZM_add 844508
ZM_copy 667203
ZM_det_triangular 4147097
ZM_diag_mul 578914
ZM_divexactu 441
ZM_equal 3499982
ZM_equal0 32292
ZM_hnfdivrem 491965
ZM_hnfdivrem_i 491980
ZM_isdiagonal 625754
ZM_ishnf 826964
ZM_isidentity 658175
ZM_isscalar 161113
ZM_max_expi 0
ZM_max_expi_i 0
ZM_max_lg 22795
ZM_max_lg_i 27720756
ZM_modhnf 14
ZM_mul 20965800
ZM_mul_classical 13784209
ZM_mul_diag 21
ZM_mul_fast 839
ZM_mul_i 21363052
ZM_mul_slice 1105
ZM_mul_sw 76382
ZM_mul_worker 1105
ZM_multosym 0
ZM_nc_mul_i 0
ZM_neg 1734367
ZM_nm_mul 0
ZM_pow 0
ZM_powu 23632
ZM_reducemodlll 0
ZM_reducemodmatrix 239847
ZM_reducemodmatrix_i 239848
ZM_sqr 25235
ZM_sqr_fast 0
ZM_sqr_i 25235
ZM_sqr_slice 0
ZM_sqr_worker 0
ZM_sub 156821
ZM_supnorm 4260
ZM_to_zm 1022
ZM_togglesign 0
ZM_transmul 2289
ZM_transmultosym 532221
ZM_zc_mul 17520633
ZM_zc_mul_i 19589277
ZM_zm_mul 976815
ZMrow_ZC_mul 137372962
ZMrow_ZC_mul_i 599365736
ZMrow_equal0 16231
ZRED 1170471
ZV_ZM_mul 231238
ZV_ZV_divrem 7
ZV_abscmp 19747
ZV_cmp 3254331
ZV_content 300489
ZV_dotproduct 16645159
ZV_dotproduct_i 19474980
ZV_dotsquare 6860682
ZV_equal 293384
ZV_equal0 14719725
ZV_equal_lg 6519258
ZV_max_expi 0
ZV_max_expi_i 0
ZV_max_lg 10640
ZV_max_lg_i 111678117
ZV_neg_inplace 391065
ZV_prod 8855818
ZV_sum 77
ZV_to_nv 496524
ZV_togglesign 5131664
ZV_zc_mul 2229556
Z_ZC_sub 584559
ZincrementalGS 1279197
Zupdate_row 402337
_ZM_mul 280
_ZM_sqr 24157
_mulii 319217965
add_slices 611056
check_ZV 1938004
matmodhnf 49
matmodhnf_check 98
nm_Z_mul 0
subtract_slices 534674
sw_bound 13860515
vecsmall_prod 14694393
zmV_to_ZMV 126
zm_to_Flm 22694
zm_to_ZM 157920
zvV_equal 1638
zv_ZM_mul 2408
zv_abs 77
zv_canon_inplace 22921521
zv_content 18816785
zv_dotproduct 196399119
zv_equal 31000898
zv_equal0 23113174
zv_neg 51878
zv_neg_inplace 126
zv_prod 951007
zv_prod_Z 1923012
zv_sum 16518
zv_sumpart 0
zv_to_Flv 366646
zv_z_mul 28673

Generated by: LCOV version 1.16