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 30786-ffec283a2b) Lines: 839 988 84.9 %
Date: 2026-04-08 09:25:27 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 16508
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 28773
ZM_equal0 32306
zv_neg 51882
ZC_z_mul 64369
ZM_mul_sw 76372
ZC_reducemodlll 97985
ZC_reducemodmatrix 112296
ZC_reducemodmatrix_i 112296
QM_QC_mul 125448
ZM_isscalar 161876
ZC_is_ei 174398
ZM_sub 181630
zm_to_ZM 183704
ZV_ZM_mul 231238
ZM_reducemodmatrix 239840
ZM_reducemodmatrix_i 239841
ZV_equal 293360
ZV_content 300477
zv_to_Flv 366646
ZC_Z_add 370264
ZV_neg_inplace 391095
Zupdate_row 402232
ZV_to_nv 431553
ZM_hnfdivrem 529505
ZM_hnfdivrem_i 529521
ZM_Z_divexact 530683
ZM_transmultosym 532221
subtract_slices 534604
QM_mul 558714
Z_ZC_sub 584376
ZM_diag_mul 592943
RgM_check_ZM 598559
add_slices 610976
ZM_isidentity 658178
ZM_isdiagonal 677171
ZM_copy 743921
ZC_lincomb_1 760136
ZM_add 844717
ZM_ishnf 878308
zv_prod 951616
ZM_zm_mul 1001606
ZM_Q_mul 1140876
ZRED 1170494
ZincrementalGS 1279175
RgV_check_ZV 1501284
ZM_neg 1733924
check_ZV 1938989
zv_prod_Z 1974533
ZV_zc_mul 2229556
ZC_Q_mul 2756530
ZV_cmp 3254322
ZM_Z_mul 3382127
ZM_equal 3500295
ZC_Z_div 3676886
ZM_det_triangular 4267594
ZC_Z_divexact 5876151
ZC_neg 6363659
ZV_equal_lg 6518998
ZV_dotsquare 6861443
ZV_togglesign 7276959
ZV_prod 8855974
ZC_sub 9157154
ZC_sub_i 9572834
ZC_hnfdivrem 10696865
ZC_hnfdivrem_i 11402753
ZM_mul_classical 13884147
sw_bound 13960480
vecsmall_prod 14694393
ZV_equal0 15013161
ZC_lincomb1 16044643
ZV_dotproduct 16644149
ZM_zc_mul 17959083
ZC_copy 18806868
ZV_dotproduct_i 19473738
zv_content 19544922
ZM_zc_mul_i 20110855
ZM_mul 21115170
ZM_mul_i 21512224
zv_canon_inplace 22921521
zv_equal0 23113592
ZM_ZC_mul 25800587
ZC_add 27082539
ZM_max_lg_i 27920629
Flc_lincomb1_inplace 29897749
ZC_lincomb 34910188
ZC_Z_mul 36172361
ZC_add_i 37114336
ZC_lincomb1_inplace 65747354
zv_equal 67992542
ZC_lincomb1_inplace_i 76807269
ZM_ZC_mul_i 78988752
ZV_max_lg_i 114368596
ZMrow_ZC_mul 137967820
zv_dotproduct 196399119
_mulii 319093861
ZMrow_ZC_mul_i 604389379

Generated by: LCOV version 1.16