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 30666-e2f9826198) Lines: 839 988 84.9 %
Date: 2026-02-04 09:22:32 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 16511
ZM_Z_div 19308
ZV_abscmp 19747
ZM_max_lg 22662
zm_to_Flm 22694
ZM_powu 23618
_ZM_sqr 24143
ZM_sqr 25221
ZM_sqr_i 25221
zv_z_mul 28675
ZM_equal0 32306
zv_neg 51876
ZC_z_mul 64351
ZM_mul_sw 76376
ZC_reducemodlll 97986
ZC_reducemodmatrix 112296
ZC_reducemodmatrix_i 112296
QM_QC_mul 127091
ZM_sub 156904
zm_to_ZM 158031
ZM_isscalar 161890
ZC_is_ei 174398
ZV_ZM_mul 231238
ZM_reducemodmatrix 239850
ZM_reducemodmatrix_i 239850
ZV_equal 293356
ZV_content 300474
zv_to_Flv 366646
ZC_Z_add 366776
ZV_neg_inplace 391079
Zupdate_row 402352
ZM_hnfdivrem 491779
ZM_hnfdivrem_i 491797
ZV_to_nv 496631
ZM_Z_divexact 530282
ZM_transmultosym 532221
subtract_slices 534632
QM_mul 558714
ZM_diag_mul 578928
Z_ZC_sub 584377
RgM_check_ZM 598167
add_slices 611008
ZM_isdiagonal 625525
ZM_isidentity 658066
ZM_copy 667094
ZC_lincomb_1 757632
ZM_ishnf 826645
ZM_add 844416
zv_prod 951169
ZM_zm_mul 976926
ZM_Q_mul 1140910
ZRED 1170411
ZincrementalGS 1279206
RgV_check_ZV 1501243
ZM_neg 1734046
zv_prod_Z 1922688
check_ZV 1937487
ZV_zc_mul 2229556
ZC_Q_mul 2758182
ZV_cmp 3253701
ZM_Z_mul 3381081
ZM_equal 3499277
ZC_Z_div 3676961
ZM_det_triangular 4147698
ZV_togglesign 5123228
ZC_Z_divexact 5780458
ZC_neg 6357546
ZV_equal_lg 6517525
ZV_dotsquare 6859506
ZV_prod 8855960
ZC_sub 9094418
ZC_sub_i 9427010
ZC_hnfdivrem 10697219
ZC_hnfdivrem_i 11324090
ZM_mul_classical 13781313
sw_bound 13857889
vecsmall_prod 14694393
ZV_equal0 14715645
ZC_lincomb1 16036986
ZV_dotproduct 16640900
ZM_zc_mul 17959560
ZC_copy 18146767
ZV_dotproduct_i 19471351
zv_content 19539689
ZM_zc_mul_i 20028216
ZM_mul 20964661
ZM_mul_i 21361857
zv_canon_inplace 22921521
zv_equal0 23113196
ZM_ZC_mul 25802341
ZC_add 27071816
ZM_max_lg_i 27715352
Flc_lincomb1_inplace 29898605
zv_equal 31000780
ZC_lincomb 34824039
ZC_Z_mul 36157828
ZC_add_i 37102173
ZC_lincomb1_inplace 64143745
ZC_lincomb1_inplace_i 75202485
ZM_ZC_mul_i 77642632
ZV_max_lg_i 111649921
ZMrow_ZC_mul 137955020
zv_dotproduct 196399119
_mulii 319219853
ZMrow_ZC_mul_i 599889080

Generated by: LCOV version 1.16