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 30613-2b070936c6) Lines: 839 988 84.9 %
Date: 2026-01-15 09:21:54 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 1103
ZM_mul_worker 1103
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 16519
ZM_Z_div 19308
ZV_abscmp 19746
ZM_max_lg 22662
zm_to_Flm 22694
ZM_powu 23617
_ZM_sqr 24143
ZM_sqr 25221
ZM_sqr_i 25221
zv_z_mul 28651
ZM_equal0 32292
zv_neg 51856
ZC_z_mul 64354
ZM_mul_sw 76375
ZC_reducemodlll 97985
ZC_reducemodmatrix 112296
ZC_reducemodmatrix_i 112296
QM_QC_mul 126986
ZM_sub 156918
zm_to_ZM 158044
ZM_isscalar 161831
ZC_is_ei 174398
ZV_ZM_mul 231238
ZM_reducemodmatrix 239841
ZM_reducemodmatrix_i 239844
ZV_equal 293349
ZV_content 300477
zv_to_Flv 366646
ZC_Z_add 366770
ZV_neg_inplace 391088
Zupdate_row 402299
ZM_hnfdivrem 491799
ZM_hnfdivrem_i 491819
ZV_to_nv 496491
ZM_Z_divexact 530248
ZM_transmultosym 532221
subtract_slices 534625
QM_mul 558714
ZM_diag_mul 578759
Z_ZC_sub 584345
RgM_check_ZM 598166
add_slices 611000
ZM_isdiagonal 625485
ZM_isidentity 658083
ZM_copy 667085
ZC_lincomb_1 757553
ZM_ishnf 826619
ZM_add 844593
zv_prod 950952
ZM_zm_mul 976941
ZM_Q_mul 1140911
ZRED 1170541
ZincrementalGS 1279190
RgV_check_ZV 1501240
ZM_neg 1734112
zv_prod_Z 1922688
check_ZV 1937481
ZV_zc_mul 2229556
ZC_Q_mul 2758072
ZV_cmp 3253651
ZM_Z_mul 3381423
ZM_equal 3499364
ZC_Z_div 3676971
ZM_det_triangular 4147631
ZV_togglesign 5124321
ZC_Z_divexact 5779512
ZC_neg 6357851
ZV_equal_lg 6517801
ZV_dotsquare 6859551
ZV_prod 8855754
ZC_sub 9094092
ZC_sub_i 9426924
ZC_hnfdivrem 10697026
ZC_hnfdivrem_i 11323876
ZM_mul_classical 13781732
sw_bound 13858102
vecsmall_prod 14694393
ZV_equal0 14714757
ZC_lincomb1 16036900
ZV_dotproduct 16640338
ZM_zc_mul 17959137
ZC_copy 18145575
ZV_dotproduct_i 19471106
zv_content 19537810
ZM_zc_mul_i 20028043
ZM_mul 20964255
ZM_mul_i 21361915
zv_canon_inplace 22921521
zv_equal0 23113180
ZM_ZC_mul 25801397
ZC_add 27086418
ZM_max_lg_i 27715660
Flc_lincomb1_inplace 29896911
zv_equal 31000789
ZC_lincomb 34822439
ZC_Z_mul 36169010
ZC_add_i 37116584
ZC_lincomb1_inplace 64124916
ZC_lincomb1_inplace_i 75181511
ZM_ZC_mul_i 77641797
ZV_max_lg_i 111649814
ZMrow_ZC_mul 137945586
zv_dotproduct 196399119
_mulii 319218147
ZMrow_ZC_mul_i 599817549

Generated by: LCOV version 1.16