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 30842-de08e65e1b) Lines: 839 988 84.9 %
Date: 2026-04-29 09:26:11 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 1102
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 16516
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 28768
ZM_equal0 32306
zv_neg 51875
ZC_z_mul 64369
ZM_mul_sw 76372
ZC_reducemodlll 97981
ZC_reducemodmatrix 112293
ZC_reducemodmatrix_i 112293
QM_QC_mul 125454
ZM_isscalar 161814
ZC_is_ei 174398
ZM_sub 181552
zm_to_ZM 183637
ZV_ZM_mul 231238
ZM_reducemodmatrix 239853
ZM_reducemodmatrix_i 239853
ZV_equal 293367
ZV_content 300483
zv_to_Flv 366646
ZC_Z_add 370253
ZV_neg_inplace 391255
Zupdate_row 402221
ZV_to_nv 431572
ZM_hnfdivrem 529474
ZM_hnfdivrem_i 529490
ZM_Z_divexact 530698
ZM_transmultosym 532221
subtract_slices 534604
QM_mul 559148
Z_ZC_sub 584340
ZM_diag_mul 592975
RgM_check_ZM 598589
add_slices 610976
ZM_isidentity 658141
ZM_isdiagonal 677172
ZM_copy 744151
ZC_lincomb_1 760125
ZM_add 844512
ZM_ishnf 878285
zv_prod 951581
ZM_zm_mul 1001525
ZM_Q_mul 1163596
ZRED 1170499
ZincrementalGS 1279184
RgV_check_ZV 1501283
ZM_neg 1733893
check_ZV 1939057
zv_prod_Z 1974614
ZV_zc_mul 2229556
ZC_Q_mul 2801953
ZV_cmp 3254281
ZM_Z_mul 3381818
ZM_equal 3500464
ZC_Z_div 3676870
ZM_det_triangular 4267507
ZC_Z_divexact 5875971
ZC_neg 6363847
ZV_equal_lg 6518924
ZV_dotsquare 6861646
ZV_togglesign 7278443
ZV_prod 8855989
ZC_sub 9157419
ZC_sub_i 9573043
ZC_hnfdivrem 10697016
ZC_hnfdivrem_i 11402849
ZM_mul_classical 13884198
sw_bound 13960537
vecsmall_prod 14694393
ZV_equal0 15013454
ZC_lincomb1 16044865
ZV_dotproduct 16644281
ZM_zc_mul 17959404
ZC_copy 18807496
ZV_dotproduct_i 19473767
zv_content 19544397
ZM_zc_mul_i 20111134
ZM_mul 21115860
ZM_mul_i 21513009
zv_canon_inplace 22921521
zv_equal0 23113594
ZM_ZC_mul 25800496
ZC_add 27083654
ZM_max_lg_i 27920595
Flc_lincomb1_inplace 29891891
ZC_lincomb 34909211
ZC_Z_mul 36173851
ZC_add_i 37114527
ZC_lincomb1_inplace 65764184
zv_equal 67992827
ZC_lincomb1_inplace_i 76823896
ZM_ZC_mul_i 78987351
ZV_max_lg_i 114364496
ZMrow_ZC_mul 137966382
zv_dotproduct 196399119
_mulii 319250909
ZMrow_ZC_mul_i 604383039

Generated by: LCOV version 1.16