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 30595-a3cd9a95e8) Lines: 839 988 84.9 %
Date: 2026-01-04 09:21:39 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 28674
ZM_equal0 32292
zv_neg 51880
ZC_z_mul 64347
ZM_mul_sw 76382
ZC_reducemodlll 97985
ZC_reducemodmatrix 112294
ZC_reducemodmatrix_i 112294
QM_QC_mul 126986
ZM_sub 156895
zm_to_ZM 158022
ZM_isscalar 160913
ZC_is_ei 174398
ZV_ZM_mul 231238
ZM_reducemodmatrix 239858
ZM_reducemodmatrix_i 239858
ZV_equal 293390
ZV_content 300477
zv_to_Flv 366646
ZC_Z_add 366781
ZV_neg_inplace 391042
Zupdate_row 402377
ZM_hnfdivrem 491799
ZM_hnfdivrem_i 491816
ZV_to_nv 496489
ZM_Z_divexact 530349
ZM_transmultosym 532221
subtract_slices 534674
QM_mul 558714
ZM_diag_mul 578743
Z_ZC_sub 584375
RgM_check_ZM 598249
add_slices 611056
ZM_isdiagonal 625486
ZM_isidentity 658049
ZM_copy 667071
ZC_lincomb_1 757462
ZM_ishnf 826610
ZM_add 844407
zv_prod 950950
ZM_zm_mul 976918
ZM_Q_mul 1140940
ZRED 1170542
ZincrementalGS 1279236
RgV_check_ZV 1501265
ZM_neg 1733954
zv_prod_Z 1922684
check_ZV 1937654
ZV_zc_mul 2229556
ZC_Q_mul 2758078
ZV_cmp 3253628
ZM_Z_mul 3381088
ZM_equal 3499274
ZC_Z_div 3676912
ZM_det_triangular 4146520
ZV_togglesign 5126668
ZC_Z_divexact 5779754
ZC_neg 6357417
ZV_equal_lg 6517624
ZV_dotsquare 6859227
ZV_prod 8855780
ZC_sub 9093552
ZC_sub_i 9426457
ZC_hnfdivrem 10695380
ZC_hnfdivrem_i 11322154
ZM_mul_classical 13781087
sw_bound 13857468
vecsmall_prod 14694393
ZV_equal0 14714046
ZC_lincomb1 16033877
ZV_dotproduct 16640573
ZM_zc_mul 17519381
ZC_copy 18146938
zv_content 18815649
ZV_dotproduct_i 19471192
ZM_zc_mul_i 19588334
ZM_mul 20961610
ZM_mul_i 21359004
zv_canon_inplace 22921521
zv_equal0 23113173
ZM_ZC_mul 25793183
ZC_add 27086435
ZM_max_lg_i 27714379
Flc_lincomb1_inplace 29897799
zv_equal 31000080
ZC_lincomb 34807607
ZC_Z_mul 36162762
ZC_add_i 37115461
ZC_lincomb1_inplace 64132093
ZC_lincomb1_inplace_i 75190308
ZM_ZC_mul_i 77633187
ZV_max_lg_i 111647243
ZMrow_ZC_mul 137352352
zv_dotproduct 196399119
_mulii 319218299
ZMrow_ZC_mul_i 599272239

Generated by: LCOV version 1.16