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 30851-7844d7b3a5) Lines: 839 988 84.9 %
Date: 2026-05-02 09:26:58 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 16515
ZM_Z_div 19308
ZV_abscmp 19747
zm_to_Flm 22694
ZM_max_lg 22788
ZM_powu 23618
_ZM_sqr 24143
ZM_sqr 25221
ZM_sqr_i 25221
zv_z_mul 28779
ZM_equal0 32306
zv_neg 51882
ZC_z_mul 64370
ZM_mul_sw 76372
ZC_reducemodlll 97980
ZC_reducemodmatrix 112295
ZC_reducemodmatrix_i 112295
QM_QC_mul 125451
ZM_isscalar 161840
ZC_is_ei 174398
ZM_sub 181590
zm_to_ZM 183674
ZV_ZM_mul 231238
ZM_reducemodmatrix 239852
ZM_reducemodmatrix_i 239852
ZV_equal 293358
ZV_content 300480
zv_to_Flv 366646
ZC_Z_add 370256
ZV_neg_inplace 391298
Zupdate_row 402241
ZV_to_nv 431579
ZM_hnfdivrem 529485
ZM_hnfdivrem_i 529502
ZM_Z_divexact 530704
ZM_transmultosym 532221
subtract_slices 534604
QM_mul 559148
Z_ZC_sub 584360
ZM_diag_mul 592995
RgM_check_ZM 598581
add_slices 610976
ZM_isidentity 658182
ZM_isdiagonal 677170
ZM_copy 744222
ZC_lincomb_1 760251
ZM_add 844587
ZM_ishnf 878311
zv_prod 951616
ZM_zm_mul 1001560
ZM_Q_mul 1163577
ZRED 1170534
ZincrementalGS 1279212
RgV_check_ZV 1501282
ZM_neg 1733963
check_ZV 1939046
zv_prod_Z 1974626
ZV_zc_mul 2229556
ZC_Q_mul 2801942
ZV_cmp 3254353
ZM_Z_mul 3381997
ZM_equal 3500546
ZC_Z_div 3676913
ZM_det_triangular 4267534
ZC_Z_divexact 5876014
ZC_neg 6363904
ZV_equal_lg 6519079
ZV_dotsquare 6861729
ZV_togglesign 7279109
ZV_prod 8856004
ZC_sub 9157312
ZC_sub_i 9573012
ZC_hnfdivrem 10696838
ZC_hnfdivrem_i 11402730
ZM_mul_classical 13884703
sw_bound 13961068
vecsmall_prod 14694393
ZV_equal0 15014550
ZC_lincomb1 16045533
ZV_dotproduct 16644083
ZM_zc_mul 17958856
ZC_copy 18807750
ZV_dotproduct_i 19473586
zv_content 19543380
ZM_zc_mul_i 20110643
ZM_mul 21116595
ZM_mul_i 21513651
zv_canon_inplace 22921521
zv_equal0 23113592
ZM_ZC_mul 25800732
ZC_add 27083134
ZM_max_lg_i 27921738
Flc_lincomb1_inplace 29895883
ZC_lincomb 34911109
ZC_Z_mul 36174287
ZC_add_i 37114409
ZC_lincomb1_inplace 65753211
zv_equal 67992612
ZC_lincomb1_inplace_i 76811513
ZM_ZC_mul_i 78989827
ZV_max_lg_i 114370145
ZMrow_ZC_mul 137964959
zv_dotproduct 196399119
_mulii 319251319
ZMrow_ZC_mul_i 604383262

Generated by: LCOV version 1.16