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 30660-09c6d0ed2e) Lines: 839 988 84.9 %
Date: 2026-02-02 09:23:03 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 16518
ZM_Z_div 19308
ZV_abscmp 19747
ZM_max_lg 22662
zm_to_Flm 22694
ZM_powu 23617
_ZM_sqr 24143
ZM_sqr 25221
ZM_sqr_i 25221
zv_z_mul 28672
ZM_equal0 32292
zv_neg 51877
ZC_z_mul 64347
ZM_mul_sw 76375
ZC_reducemodlll 97984
ZC_reducemodmatrix 112297
ZC_reducemodmatrix_i 112297
QM_QC_mul 126986
ZM_sub 156893
zm_to_ZM 158020
ZM_isscalar 161770
ZC_is_ei 174398
ZV_ZM_mul 231238
ZM_reducemodmatrix 239858
ZM_reducemodmatrix_i 239858
ZV_equal 293351
ZV_content 300474
zv_to_Flv 366646
ZC_Z_add 366788
ZV_neg_inplace 391091
Zupdate_row 402351
ZM_hnfdivrem 491836
ZM_hnfdivrem_i 491851
ZV_to_nv 496490
ZM_Z_divexact 530267
ZM_transmultosym 532221
subtract_slices 534625
QM_mul 558714
ZM_diag_mul 578737
Z_ZC_sub 584377
RgM_check_ZM 598167
add_slices 611000
ZM_isdiagonal 625507
ZM_isidentity 658057
ZM_copy 667088
ZC_lincomb_1 757488
ZM_ishnf 826645
ZM_add 844441
zv_prod 950950
ZM_zm_mul 976914
ZM_Q_mul 1140905
ZRED 1170619
ZincrementalGS 1279220
RgV_check_ZV 1501245
ZM_neg 1733928
zv_prod_Z 1922693
check_ZV 1937488
ZV_zc_mul 2229556
ZC_Q_mul 2758075
ZV_cmp 3253676
ZM_Z_mul 3381149
ZM_equal 3499309
ZC_Z_div 3676958
ZM_det_triangular 4147561
ZV_togglesign 5124894
ZC_Z_divexact 5779754
ZC_neg 6357408
ZV_equal_lg 6517612
ZV_dotsquare 6859274
ZV_prod 8855836
ZC_sub 9094336
ZC_sub_i 9427201
ZC_hnfdivrem 10696982
ZC_hnfdivrem_i 11323845
ZM_mul_classical 13780821
sw_bound 13857331
vecsmall_prod 14694393
ZV_equal0 14714461
ZC_lincomb1 16036730
ZV_dotproduct 16640647
ZM_zc_mul 17958988
ZC_copy 18146903
ZV_dotproduct_i 19471255
zv_content 19539123
ZM_zc_mul_i 20027910
ZM_mul 20963769
ZM_mul_i 21361013
zv_canon_inplace 22921521
zv_equal0 23113192
ZM_ZC_mul 25800551
ZC_add 27073174
ZM_max_lg_i 27714046
Flc_lincomb1_inplace 29899721
zv_equal 31000994
ZC_lincomb 34823228
ZC_Z_mul 36154351
ZC_add_i 37103431
ZC_lincomb1_inplace 64135461
ZC_lincomb1_inplace_i 75195100
ZM_ZC_mul_i 77639634
ZV_max_lg_i 111644628
ZMrow_ZC_mul 137955508
zv_dotproduct 196399119
_mulii 319218367
ZMrow_ZC_mul_i 599859214

Generated by: LCOV version 1.16