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 30775-9d8a55740a) Lines: 839 988 84.9 %
Date: 2026-04-05 09:26:48 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 16508
ZM_Z_div 19308
ZV_abscmp 19747
ZM_max_lg 22655
zm_to_Flm 22694
ZM_powu 23617
_ZM_sqr 24142
ZM_sqr 25220
ZM_sqr_i 25220
zv_z_mul 28769
ZM_equal0 32306
zv_neg 51874
ZC_z_mul 64373
ZM_mul_sw 76372
ZC_reducemodlll 97988
ZC_reducemodmatrix 112295
ZC_reducemodmatrix_i 112295
QM_QC_mul 125451
ZM_isscalar 161800
ZC_is_ei 174398
ZM_sub 181786
zm_to_ZM 183859
ZV_ZM_mul 231238
ZM_reducemodmatrix 239859
ZM_reducemodmatrix_i 239859
ZV_equal 293370
ZV_content 300480
zv_to_Flv 366646
ZC_Z_add 370260
ZV_neg_inplace 391120
Zupdate_row 402230
ZV_to_nv 431547
ZM_hnfdivrem 529513
ZM_hnfdivrem_i 529529
ZM_Z_divexact 530682
ZM_transmultosym 532221
subtract_slices 534604
QM_mul 558714
Z_ZC_sub 584362
ZM_diag_mul 592970
RgM_check_ZM 598558
add_slices 610976
ZM_isidentity 658188
ZM_isdiagonal 677161
ZM_copy 744059
ZC_lincomb_1 760188
ZM_add 844631
ZM_ishnf 878302
zv_prod 951607
ZM_zm_mul 1001761
ZM_Q_mul 1140873
ZRED 1170489
ZincrementalGS 1279210
RgV_check_ZV 1501281
ZM_neg 1733877
check_ZV 1938997
zv_prod_Z 1974516
ZV_zc_mul 2229556
ZC_Q_mul 2756534
ZV_cmp 3254304
ZM_Z_mul 3381933
ZM_equal 3500210
ZC_Z_div 3676903
ZM_det_triangular 4267593
ZC_Z_divexact 5876056
ZC_neg 6363711
ZV_equal_lg 6518770
ZV_dotsquare 6861334
ZV_togglesign 7280680
ZV_prod 8855956
ZC_sub 9157119
ZC_sub_i 9573682
ZC_hnfdivrem 10696895
ZC_hnfdivrem_i 11402739
ZM_mul_classical 13883981
sw_bound 13960339
vecsmall_prod 14694393
ZV_equal0 15014502
ZC_lincomb1 16045240
ZV_dotproduct 16644108
ZM_zc_mul 17959022
ZC_copy 18808939
ZV_dotproduct_i 19473748
zv_content 19545567
ZM_zc_mul_i 20111643
ZM_mul 21114727
ZM_mul_i 21511704
zv_canon_inplace 22921521
zv_equal0 23113604
ZM_ZC_mul 25800077
ZC_add 27083149
ZM_max_lg_i 27920011
Flc_lincomb1_inplace 29894890
ZC_lincomb 34910410
ZC_Z_mul 36172310
ZC_add_i 37114106
ZC_lincomb1_inplace 65744752
zv_equal 67992670
ZC_lincomb1_inplace_i 76806799
ZM_ZC_mul_i 78988661
ZV_max_lg_i 114368465
ZMrow_ZC_mul 137963343
zv_dotproduct 196399119
_mulii 319093498
ZMrow_ZC_mul_i 604400486

Generated by: LCOV version 1.16