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 30711-c92306d4b4) Lines: 839 988 84.9 %
Date: 2026-02-25 09:24:21 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 16514
ZM_Z_div 19308
ZV_abscmp 19747
ZM_max_lg 22661
zm_to_Flm 22694
ZM_powu 23618
_ZM_sqr 24143
ZM_sqr 25221
ZM_sqr_i 25221
zv_z_mul 28657
ZM_equal0 32306
zv_neg 51869
ZC_z_mul 64352
ZM_mul_sw 76376
ZC_reducemodlll 97982
ZC_reducemodmatrix 112295
ZC_reducemodmatrix_i 112295
QM_QC_mul 127091
ZM_isscalar 161892
ZC_is_ei 174398
ZM_sub 181450
zm_to_ZM 182578
ZV_ZM_mul 231238
ZM_reducemodmatrix 239862
ZM_reducemodmatrix_i 239862
ZV_equal 293351
ZV_content 300474
zv_to_Flv 366646
ZC_Z_add 366791
ZV_neg_inplace 391068
Zupdate_row 402304
ZV_to_nv 431558
ZM_hnfdivrem 529474
ZM_hnfdivrem_i 529491
ZM_Z_divexact 530289
ZM_transmultosym 532221
subtract_slices 534632
QM_mul 558714
Z_ZC_sub 584381
ZM_diag_mul 592946
RgM_check_ZM 598163
add_slices 611008
ZM_isidentity 658078
ZM_isdiagonal 677204
ZM_copy 743376
ZC_lincomb_1 759830
ZM_add 844490
ZM_ishnf 878334
zv_prod 951163
ZM_zm_mul 1001474
ZM_Q_mul 1140926
ZRED 1170606
ZincrementalGS 1279221
RgV_check_ZV 1501248
ZM_neg 1733992
check_ZV 1937483
zv_prod_Z 1974235
ZV_zc_mul 2229556
ZC_Q_mul 2758177
ZV_cmp 3253729
ZM_Z_mul 3381378
ZM_equal 3499516
ZC_Z_div 3676983
ZM_det_triangular 4267170
ZC_Z_divexact 5874722
ZC_neg 6357616
ZV_equal_lg 6517903
ZV_dotsquare 6859448
ZV_togglesign 7274133
ZV_prod 8856002
ZC_sub 9156715
ZC_sub_i 9571646
ZC_hnfdivrem 10697152
ZC_hnfdivrem_i 11403184
ZM_mul_classical 13882966
sw_bound 13959350
vecsmall_prod 14694393
ZV_equal0 15007682
ZC_lincomb1 16043567
ZV_dotproduct 16640146
ZM_zc_mul 17959171
ZC_copy 18799237
ZV_dotproduct_i 19471373
zv_content 19539442
ZM_zc_mul_i 20110192
ZM_mul 21114145
ZM_mul_i 21511469
zv_canon_inplace 22921521
zv_equal0 23113206
ZM_ZC_mul 25802598
ZC_add 27077509
ZM_max_lg_i 27918291
Flc_lincomb1_inplace 29898755
zv_equal 31001044
ZC_lincomb 34908175
ZC_Z_mul 36161092
ZC_add_i 37107747
ZC_lincomb1_inplace 65761492
ZC_lincomb1_inplace_i 76821136
ZM_ZC_mul_i 78988267
ZV_max_lg_i 114359047
ZMrow_ZC_mul 137955220
zv_dotproduct 196399119
_mulii 318937876
ZMrow_ZC_mul_i 604400039

Generated by: LCOV version 1.16