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 30590-f14e077362) Lines: 839 988 84.9 %
Date: 2026-01-02 09:20:44 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 29897487
QM_QC_mul 126986
QM_mul 558714
QM_sqr 700
RgM_check_ZM 598254
RgM_issquare 42
RgV_check_ZV 1501264
ZC_Q_mul 2758066
ZC_ZV_mul 0
ZC_Z_add 366765
ZC_Z_div 3676907
ZC_Z_divexact 5779551
ZC_Z_mul 36160763
ZC_Z_sub 0
ZC_add 27086142
ZC_add_i 37115815
ZC_copy 18145442
ZC_divexactu 2261
ZC_hnfdivrem 10695426
ZC_hnfdivrem_i 11322243
ZC_is_ei 174398
ZC_lincomb 34807265
ZC_lincomb1 16034519
ZC_lincomb1_inplace 64113764
ZC_lincomb1_inplace_i 75169535
ZC_lincomb_1 757397
ZC_modhnf 280
ZC_neg 6357197
ZC_reducemodlll 97982
ZC_reducemodmatrix 112296
ZC_reducemodmatrix_i 112296
ZC_sub 9093751
ZC_sub_i 9426104
ZC_z_mul 64349
ZMV_to_zmV 49
ZM_Q_mul 1140917
ZM_ZC_mul 25792474
ZM_ZC_mul_i 77628786
ZM_ZV_divrem 0
ZM_Z_div 19308
ZM_Z_divexact 530340
ZM_Z_mul 3381143
ZM_add 844434
ZM_copy 666868
ZM_det_triangular 4146229
ZM_diag_mul 578739
ZM_divexactu 441
ZM_equal 3499254
ZM_equal0 32292
ZM_hnfdivrem 491768
ZM_hnfdivrem_i 491784
ZM_isdiagonal 625495
ZM_ishnf 826609
ZM_isidentity 658049
ZM_isscalar 160813
ZM_max_expi 0
ZM_max_expi_i 0
ZM_max_lg 22662
ZM_max_lg_i 27713660
ZM_modhnf 14
ZM_mul 20961012
ZM_mul_classical 13780762
ZM_mul_diag 21
ZM_mul_fast 839
ZM_mul_i 21358306
ZM_mul_slice 1105
ZM_mul_sw 76382
ZM_mul_worker 1105
ZM_multosym 0
ZM_nc_mul_i 0
ZM_neg 1733891
ZM_nm_mul 0
ZM_pow 0
ZM_powu 23617
ZM_reducemodlll 0
ZM_reducemodmatrix 239842
ZM_reducemodmatrix_i 239838
ZM_sqr 25220
ZM_sqr_fast 0
ZM_sqr_i 25220
ZM_sqr_slice 0
ZM_sqr_worker 0
ZM_sub 156734
ZM_supnorm 4260
ZM_to_zm 1022
ZM_togglesign 0
ZM_transmul 2289
ZM_transmultosym 532221
ZM_zc_mul 17519102
ZM_zc_mul_i 19587509
ZM_zm_mul 976765
ZMrow_ZC_mul 137344969
ZMrow_ZC_mul_i 599226707
ZMrow_equal0 16231
ZRED 1170507
ZV_ZM_mul 231238
ZV_ZV_divrem 7
ZV_abscmp 19747
ZV_cmp 3253649
ZV_content 300474
ZV_dotproduct 16639730
ZV_dotproduct_i 19470658
ZV_dotsquare 6858997
ZV_equal 293375
ZV_equal0 14713520
ZV_equal_lg 6517597
ZV_max_expi 0
ZV_max_expi_i 0
ZV_max_lg 10640
ZV_max_lg_i 111642399
ZV_neg_inplace 391034
ZV_prod 8855713
ZV_sum 77
ZV_to_nv 496486
ZV_togglesign 5125447
ZV_zc_mul 2229556
Z_ZC_sub 584382
ZincrementalGS 1279206
Zupdate_row 402311
_ZM_mul 280
_ZM_sqr 24142
_mulii 319217779
add_slices 611056
check_ZV 1937664
matmodhnf 49
matmodhnf_check 98
nm_Z_mul 0
subtract_slices 534674
sw_bound 13857103
vecsmall_prod 14694393
zmV_to_ZMV 126
zm_to_Flm 22694
zm_to_ZM 157871
zvV_equal 1638
zv_ZM_mul 2408
zv_abs 77
zv_canon_inplace 22921521
zv_content 18813154
zv_dotproduct 196399119
zv_equal 31000264
zv_equal0 23113188
zv_neg 51885
zv_neg_inplace 126
zv_prod 950949
zv_prod_Z 1922677
zv_sum 16511
zv_sumpart 0
zv_to_Flv 366646
zv_z_mul 28681

Generated by: LCOV version 1.16