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 30773-2078653b96) Lines: 839 988 84.9 %
Date: 2026-04-01 09:27:34 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 16513
ZM_Z_div 19308
ZV_abscmp 19747
ZM_max_lg 22655
zm_to_Flm 22694
ZM_powu 23618
_ZM_sqr 24143
ZM_sqr 25221
ZM_sqr_i 25221
zv_z_mul 28775
ZM_equal0 32306
zv_neg 51877
ZC_z_mul 64372
ZM_mul_sw 76372
ZC_reducemodlll 97984
ZC_reducemodmatrix 112294
ZC_reducemodmatrix_i 112294
QM_QC_mul 125454
ZM_isscalar 161798
ZC_is_ei 174398
ZM_sub 181754
zm_to_ZM 183826
ZV_ZM_mul 231238
ZM_reducemodmatrix 239861
ZM_reducemodmatrix_i 239861
ZV_equal 293358
ZV_content 300483
zv_to_Flv 366646
ZC_Z_add 370246
ZV_neg_inplace 391082
Zupdate_row 402222
ZV_to_nv 431562
ZM_hnfdivrem 529513
ZM_hnfdivrem_i 529529
ZM_Z_divexact 530682
ZM_transmultosym 532221
subtract_slices 534604
QM_mul 558714
Z_ZC_sub 584389
ZM_diag_mul 592956
RgM_check_ZM 598550
add_slices 610976
ZM_isidentity 658188
ZM_isdiagonal 677183
ZM_copy 744044
ZC_lincomb_1 760185
ZM_add 844654
ZM_ishnf 878319
zv_prod 951616
ZM_zm_mul 1001726
ZM_Q_mul 1140905
ZRED 1170580
ZincrementalGS 1279237
RgV_check_ZV 1501277
ZM_neg 1733890
check_ZV 1938982
zv_prod_Z 1974537
ZV_zc_mul 2229556
ZC_Q_mul 2756541
ZV_cmp 3254343
ZM_Z_mul 3381950
ZM_equal 3500191
ZC_Z_div 3676886
ZM_det_triangular 4267643
ZC_Z_divexact 5876309
ZC_neg 6363659
ZV_equal_lg 6518788
ZV_dotsquare 6861530
ZV_togglesign 7278919
ZV_prod 8856023
ZC_sub 9157317
ZC_sub_i 9573729
ZC_hnfdivrem 10697248
ZC_hnfdivrem_i 11403108
ZM_mul_classical 13884041
sw_bound 13960412
vecsmall_prod 14694393
ZV_equal0 15014260
ZC_lincomb1 16045568
ZV_dotproduct 16644633
ZM_zc_mul 17959053
ZC_copy 18809341
ZV_dotproduct_i 19473936
zv_content 19544660
ZM_zc_mul_i 20111554
ZM_mul 21114859
ZM_mul_i 21511860
zv_canon_inplace 22921521
zv_equal0 23113595
ZM_ZC_mul 25800800
ZC_add 27087305
ZM_max_lg_i 27920252
Flc_lincomb1_inplace 29894801
ZC_lincomb 34911470
ZC_Z_mul 36174905
ZC_add_i 37117980
ZC_lincomb1_inplace 65750823
zv_equal 67992551
ZC_lincomb1_inplace_i 76812875
ZM_ZC_mul_i 78991999
ZV_max_lg_i 114368867
ZMrow_ZC_mul 137973746
zv_dotproduct 196399119
_mulii 319093756
ZMrow_ZC_mul_i 604455639

Generated by: LCOV version 1.16