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 30569-8181146aa1) Lines: 839 988 84.9 %
Date: 2025-12-02 09:22:09 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 29904879
QM_QC_mul 127014
QM_mul 558714
QM_sqr 700
RgM_check_ZM 598447
RgM_issquare 42
RgV_check_ZV 1501304
ZC_Q_mul 2758157
ZC_ZV_mul 0
ZC_Z_add 366900
ZC_Z_div 3676985
ZC_Z_divexact 5782037
ZC_Z_mul 36174638
ZC_Z_sub 0
ZC_add 27092775
ZC_add_i 37123041
ZC_copy 18150846
ZC_divexactu 2261
ZC_hnfdivrem 10696288
ZC_hnfdivrem_i 11323350
ZC_is_ei 174398
ZC_lincomb 34810636
ZC_lincomb1 16034911
ZC_lincomb1_inplace 64151522
ZC_lincomb1_inplace_i 75215595
ZC_lincomb_1 757793
ZC_modhnf 280
ZC_neg 6358917
ZC_reducemodlll 97979
ZC_reducemodmatrix 112287
ZC_reducemodmatrix_i 112287
ZC_sub 9095357
ZC_sub_i 9428271
ZC_z_mul 64389
ZMV_to_zmV 49
ZM_Q_mul 1140952
ZM_ZC_mul 25796920
ZM_ZC_mul_i 77649701
ZM_ZV_divrem 0
ZM_Z_div 19308
ZM_Z_divexact 530661
ZM_Z_mul 3381577
ZM_add 844522
ZM_copy 667270
ZM_det_triangular 4147055
ZM_diag_mul 578901
ZM_divexactu 441
ZM_equal 3499969
ZM_equal0 32292
ZM_hnfdivrem 491988
ZM_hnfdivrem_i 492004
ZM_isdiagonal 625755
ZM_ishnf 826947
ZM_isidentity 658187
ZM_isscalar 161061
ZM_max_expi 0
ZM_max_expi_i 0
ZM_max_lg 22795
ZM_max_lg_i 27720225
ZM_modhnf 14
ZM_mul 20965466
ZM_mul_classical 13783915
ZM_mul_diag 21
ZM_mul_fast 839
ZM_mul_i 21362638
ZM_mul_slice 1105
ZM_mul_sw 76382
ZM_mul_worker 1105
ZM_multosym 0
ZM_nc_mul_i 0
ZM_neg 1734300
ZM_nm_mul 0
ZM_pow 0
ZM_powu 23632
ZM_reducemodlll 0
ZM_reducemodmatrix 239835
ZM_reducemodmatrix_i 239835
ZM_sqr 25235
ZM_sqr_fast 0
ZM_sqr_i 25235
ZM_sqr_slice 0
ZM_sqr_worker 0
ZM_sub 156880
ZM_supnorm 4260
ZM_to_zm 1022
ZM_togglesign 0
ZM_transmul 2289
ZM_transmultosym 532221
ZM_zc_mul 17520453
ZM_zc_mul_i 19589360
ZM_zm_mul 976875
ZMrow_ZC_mul 137371005
ZMrow_ZC_mul_i 599356566
ZMrow_equal0 16231
ZRED 1170427
ZV_ZM_mul 231238
ZV_ZV_divrem 7
ZV_abscmp 19747
ZV_cmp 3254276
ZV_content 300492
ZV_dotproduct 16645030
ZV_dotproduct_i 19474883
ZV_dotsquare 6860658
ZV_equal 293391
ZV_equal0 14720142
ZV_equal_lg 6519325
ZV_max_expi 0
ZV_max_expi_i 0
ZV_max_lg 10640
ZV_max_lg_i 111677383
ZV_neg_inplace 391067
ZV_prod 8855847
ZV_sum 77
ZV_to_nv 496509
ZV_togglesign 5133454
ZV_zc_mul 2229556
Z_ZC_sub 584557
ZincrementalGS 1279156
Zupdate_row 402385
_ZM_mul 280
_ZM_sqr 24157
_mulii 319217932
add_slices 611056
check_ZV 1937997
matmodhnf 49
matmodhnf_check 98
nm_Z_mul 0
subtract_slices 534674
sw_bound 13860307
vecsmall_prod 14694393
zmV_to_ZMV 126
zm_to_Flm 22694
zm_to_ZM 157979
zvV_equal 1638
zv_ZM_mul 2408
zv_abs 77
zv_canon_inplace 22921521
zv_content 18815770
zv_dotproduct 196399119
zv_equal 31000948
zv_equal0 23113190
zv_neg 51878
zv_neg_inplace 126
zv_prod 951006
zv_prod_Z 1923014
zv_sum 16521
zv_sumpart 0
zv_to_Flv 366646
zv_z_mul 28673

Generated by: LCOV version 1.16