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 30446-bebd557ed6) Lines: 839 988 84.9 %
Date: 2025-08-06 09:23:53 Functions: 131 149 87.9 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Flc_lincomb1_inplace 29900336
QM_QC_mul 126986
QM_mul 558707
QM_sqr 700
RgM_check_ZM 598286
RgM_issquare 42
RgV_check_ZV 1499102
ZC_Q_mul 2757979
ZC_ZV_mul 0
ZC_Z_add 366850
ZC_Z_div 3676702
ZC_Z_divexact 5781050
ZC_Z_mul 36143486
ZC_Z_sub 0
ZC_add 27075905
ZC_add_i 37106220
ZC_copy 18133487
ZC_divexactu 2261
ZC_hnfdivrem 10681627
ZC_hnfdivrem_i 11308510
ZC_is_ei 174398
ZC_lincomb 34779216
ZC_lincomb1 16020027
ZC_lincomb1_inplace 64111940
ZC_lincomb1_inplace_i 75166394
ZC_lincomb_1 757582
ZC_modhnf 280
ZC_neg 6355357
ZC_reducemodlll 97981
ZC_reducemodmatrix 112285
ZC_reducemodmatrix_i 112284
ZC_sub 9086014
ZC_sub_i 9418320
ZC_z_mul 64249
ZMV_to_zmV 49
ZM_Q_mul 1140728
ZM_ZC_mul 25780231
ZM_ZC_mul_i 77601383
ZM_ZV_divrem 0
ZM_Z_div 19308
ZM_Z_divexact 530432
ZM_Z_mul 3379065
ZM_add 844632
ZM_copy 667218
ZM_det_triangular 4142067
ZM_diag_mul 578899
ZM_divexactu 441
ZM_equal 3494941
ZM_equal0 32292
ZM_hnfdivrem 491870
ZM_hnfdivrem_i 491885
ZM_isdiagonal 625689
ZM_ishnf 826733
ZM_isidentity 658070
ZM_isscalar 160968
ZM_max_expi 0
ZM_max_expi_i 0
ZM_max_lg 22781
ZM_max_lg_i 27699718
ZM_modhnf 14
ZM_mul 20948529
ZM_mul_classical 13773684
ZM_mul_diag 21
ZM_mul_fast 839
ZM_mul_i 21345827
ZM_mul_slice 1104
ZM_mul_sw 76382
ZM_mul_worker 1104
ZM_multosym 0
ZM_nc_mul_i 0
ZM_neg 1732800
ZM_nm_mul 0
ZM_pow 0
ZM_powu 23631
ZM_reducemodlll 0
ZM_reducemodmatrix 239843
ZM_reducemodmatrix_i 239842
ZM_sqr 25235
ZM_sqr_fast 0
ZM_sqr_i 25235
ZM_sqr_slice 0
ZM_sqr_worker 0
ZM_sub 156823
ZM_supnorm 4260
ZM_to_zm 1022
ZM_togglesign 0
ZM_transmul 2289
ZM_transmultosym 532221
ZM_zc_mul 17382795
ZM_zc_mul_i 19451208
ZM_zm_mul 976837
ZMrow_ZC_mul 135927707
ZMrow_ZC_mul_i 597739549
ZMrow_equal0 16231
ZRED 1170545
ZV_ZM_mul 231224
ZV_ZV_divrem 7
ZV_abscmp 19747
ZV_cmp 3251329
ZV_content 300486
ZV_dotproduct 16638380
ZV_dotproduct_i 19470222
ZV_dotsquare 6857484
ZV_equal 293280
ZV_equal0 14709113
ZV_equal_lg 6510956
ZV_max_expi 0
ZV_max_expi_i 0
ZV_max_lg 10640
ZV_max_lg_i 111604202
ZV_neg_inplace 391051
ZV_prod 8855988
ZV_sum 77
ZV_to_nv 496678
ZV_togglesign 5131673
ZV_zc_mul 2229556
Z_ZC_sub 584543
ZincrementalGS 1279137
Zupdate_row 402297
_ZM_mul 280
_ZM_sqr 24156
_mulii 319217635
add_slices 611056
check_ZV 1937448
matmodhnf 49
matmodhnf_check 98
nm_Z_mul 0
subtract_slices 534674
sw_bound 13850053
vecsmall_prod 14694393
zmV_to_ZMV 126
zm_to_Flm 22694
zm_to_ZM 157941
zvV_equal 1638
zv_ZM_mul 2408
zv_abs 77
zv_canon_inplace 22921521
zv_content 18613410
zv_dotproduct 196399119
zv_equal 30996448
zv_equal0 23113180
zv_neg 51875
zv_neg_inplace 126
zv_prod 951001
zv_prod_Z 1933166
zv_sum 16503
zv_sumpart 0
zv_to_Flv 366646
zv_z_mul 28667

Generated by: LCOV version 1.16