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 30862-ea47bd413c) Lines: 839 988 84.9 %
Date: 2026-05-06 09:26:47 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 1104
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 16516
ZM_Z_div 19308
ZV_abscmp 19747
zm_to_Flm 22694
ZM_max_lg 22788
ZM_powu 23617
_ZM_sqr 24142
ZM_sqr 25221
ZM_sqr_i 25221
zv_z_mul 28756
ZM_equal0 32306
zv_neg 51865
ZC_z_mul 64368
ZM_mul_sw 76372
ZC_reducemodlll 97987
ZC_reducemodmatrix 112290
ZC_reducemodmatrix_i 112290
QM_QC_mul 125457
ZM_isscalar 161862
ZC_is_ei 174398
ZM_sub 181629
zm_to_ZM 183707
ZV_ZM_mul 231351
ZM_reducemodmatrix 239852
ZM_reducemodmatrix_i 239854
ZV_equal 293366
ZV_content 300500
zv_to_Flv 366646
ZC_Z_add 370275
ZV_neg_inplace 391318
Zupdate_row 402192
ZV_to_nv 431565
ZM_hnfdivrem 529490
ZM_hnfdivrem_i 529508
ZM_Z_divexact 530690
ZM_transmultosym 532221
subtract_slices 534604
QM_mul 559148
Z_ZC_sub 584365
ZM_diag_mul 592982
RgM_check_ZM 598583
add_slices 610976
ZM_isidentity 658246
ZM_isdiagonal 677172
ZM_copy 744302
ZC_lincomb_1 760276
ZM_add 844635
ZM_ishnf 878294
zv_prod 951616
ZM_zm_mul 1001596
ZM_Q_mul 1163578
ZRED 1170525
ZincrementalGS 1279188
RgV_check_ZV 1502828
ZM_neg 1734030
check_ZV 1939038
zv_prod_Z 1976170
ZV_zc_mul 2229556
ZC_Q_mul 2801940
ZV_cmp 3255418
ZM_Z_mul 3383558
ZM_equal 3503715
ZC_Z_div 3676883
ZM_det_triangular 4270646
ZC_Z_divexact 5876053
ZC_neg 6364535
ZV_equal_lg 6523922
ZV_dotsquare 6861798
ZV_togglesign 7279442
ZV_prod 8856032
ZC_sub 9159103
ZC_sub_i 9574949
ZC_hnfdivrem 10696778
ZC_hnfdivrem_i 11402632
ZM_mul_classical 13886812
sw_bound 13963150
vecsmall_prod 14694393
ZV_equal0 15018555
ZC_lincomb1 16045133
ZV_dotproduct 16644913
ZM_zc_mul 17960790
ZC_copy 18811392
ZV_dotproduct_i 19474440
zv_content 19545851
ZM_zc_mul_i 20112728
ZM_mul 21120971
ZM_mul_i 21517961
zv_canon_inplace 22921521
zv_equal0 23113602
ZM_ZC_mul 25802914
ZC_add 27089039
ZM_max_lg_i 27925905
Flc_lincomb1_inplace 29893681
ZC_lincomb 34911210
ZC_Z_mul 36183556
ZC_add_i 37120629
ZC_lincomb1_inplace 65769452
zv_equal 67992674
ZC_lincomb1_inplace_i 76831043
ZM_ZC_mul_i 78996012
ZV_max_lg_i 114382490
ZMrow_ZC_mul 137967062
zv_dotproduct 196399119
_mulii 319251174
ZMrow_ZC_mul_i 604435997

Generated by: LCOV version 1.16