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 30822-5d69697d32) Lines: 839 988 84.9 %
Date: 2026-04-17 09:24:44 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 29895605
QM_QC_mul 125457
QM_mul 558938
QM_sqr 700
RgM_check_ZM 598561
RgM_issquare 42
RgV_check_ZV 1501284
ZC_Q_mul 2801527
ZC_ZV_mul 0
ZC_Z_add 370249
ZC_Z_div 3676884
ZC_Z_divexact 5876344
ZC_Z_mul 36174264
ZC_Z_sub 0
ZC_add 27081934
ZC_add_i 37113255
ZC_copy 18808060
ZC_divexactu 2261
ZC_hnfdivrem 10697123
ZC_hnfdivrem_i 11402994
ZC_is_ei 174398
ZC_lincomb 34913151
ZC_lincomb1 16045545
ZC_lincomb1_inplace 65768232
ZC_lincomb1_inplace_i 76829995
ZC_lincomb_1 760229
ZC_modhnf 280
ZC_neg 6364054
ZC_reducemodlll 97979
ZC_reducemodmatrix 112295
ZC_reducemodmatrix_i 112295
ZC_sub 9157376
ZC_sub_i 9573480
ZC_z_mul 64367
ZMV_to_zmV 49
ZM_Q_mul 1163378
ZM_ZC_mul 25801237
ZM_ZC_mul_i 78993401
ZM_ZV_divrem 0
ZM_Z_div 19308
ZM_Z_divexact 530680
ZM_Z_mul 3381797
ZM_add 844548
ZM_copy 743966
ZM_det_triangular 4267668
ZM_diag_mul 592992
ZM_divexactu 441
ZM_equal 3500152
ZM_equal0 32306
ZM_hnfdivrem 529505
ZM_hnfdivrem_i 529521
ZM_isdiagonal 677163
ZM_ishnf 878324
ZM_isidentity 658227
ZM_isscalar 161862
ZM_max_expi 0
ZM_max_expi_i 0
ZM_max_lg 22655
ZM_max_lg_i 27921586
ZM_modhnf 14
ZM_mul 21116228
ZM_mul_classical 13884668
ZM_mul_diag 21
ZM_mul_fast 839
ZM_mul_i 21513285
ZM_mul_slice 1104
ZM_mul_sw 76372
ZM_mul_worker 1105
ZM_multosym 0
ZM_nc_mul_i 0
ZM_neg 1734029
ZM_nm_mul 0
ZM_pow 0
ZM_powu 23618
ZM_reducemodlll 0
ZM_reducemodmatrix 239842
ZM_reducemodmatrix_i 239842
ZM_sqr 25221
ZM_sqr_fast 0
ZM_sqr_i 25221
ZM_sqr_slice 0
ZM_sqr_worker 0
ZM_sub 181649
ZM_supnorm 4260
ZM_to_zm 1022
ZM_togglesign 0
ZM_transmul 2289
ZM_transmultosym 532221
ZM_zc_mul 17958949
ZM_zc_mul_i 20111143
ZM_zm_mul 1001623
ZMrow_ZC_mul 137975081
ZMrow_ZC_mul_i 604437246
ZMrow_equal0 16231
ZRED 1170533
ZV_ZM_mul 231238
ZV_ZV_divrem 7
ZV_abscmp 19747
ZV_cmp 3254282
ZV_content 300486
ZV_dotproduct 16644671
ZV_dotproduct_i 19474147
ZV_dotsquare 6861661
ZV_equal 293352
ZV_equal0 15014292
ZV_equal_lg 6518643
ZV_max_expi 0
ZV_max_expi_i 0
ZV_max_lg 10640
ZV_max_lg_i 114374721
ZV_neg_inplace 391082
ZV_prod 8855984
ZV_sum 77
ZV_to_nv 431529
ZV_togglesign 7280018
ZV_zc_mul 2229556
Z_ZC_sub 584350
ZincrementalGS 1279181
Zupdate_row 402242
_ZM_mul 280
_ZM_sqr 24143
_mulii 319251342
add_slices 610976
check_ZV 1938997
matmodhnf 49
matmodhnf_check 98
nm_Z_mul 0
subtract_slices 534604
sw_bound 13961027
vecsmall_prod 14694393
zmV_to_ZMV 126
zm_to_Flm 22694
zm_to_ZM 183736
zvV_equal 1638
zv_ZM_mul 2408
zv_abs 77
zv_canon_inplace 22921521
zv_content 19544781
zv_dotproduct 196399119
zv_equal 67992730
zv_equal0 23113589
zv_neg 51871
zv_neg_inplace 126
zv_prod 951616
zv_prod_Z 1974625
zv_sum 16516
zv_sumpart 0
zv_to_Flv 366646
zv_z_mul 28763

Generated by: LCOV version 1.16