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 30499-74bdd0ac5b) Lines: 839 988 84.9 %
Date: 2025-09-16 09:24:07 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 29903110
QM_QC_mul 126986
QM_mul 558714
QM_sqr 700
RgM_check_ZM 598290
RgM_issquare 42
RgV_check_ZV 1501240
ZC_Q_mul 2758011
ZC_ZV_mul 0
ZC_Z_add 366853
ZC_Z_div 3676686
ZC_Z_divexact 5781201
ZC_Z_mul 36160320
ZC_Z_sub 0
ZC_add 27082935
ZC_add_i 37113297
ZC_copy 18144852
ZC_divexactu 2261
ZC_hnfdivrem 10690441
ZC_hnfdivrem_i 11317292
ZC_is_ei 174398
ZC_lincomb 34787021
ZC_lincomb1 16020238
ZC_lincomb1_inplace 64129522
ZC_lincomb1_inplace_i 75187140
ZC_lincomb_1 757498
ZC_modhnf 280
ZC_neg 6355728
ZC_reducemodlll 97982
ZC_reducemodmatrix 112289
ZC_reducemodmatrix_i 112289
ZC_sub 9092697
ZC_sub_i 9424872
ZC_z_mul 64277
ZMV_to_zmV 49
ZM_Q_mul 1140800
ZM_ZC_mul 25787497
ZM_ZC_mul_i 77611397
ZM_ZV_divrem 0
ZM_Z_div 19308
ZM_Z_divexact 530461
ZM_Z_mul 3381180
ZM_add 844584
ZM_copy 667207
ZM_det_triangular 4146339
ZM_diag_mul 578897
ZM_divexactu 441
ZM_equal 3499171
ZM_equal0 32292
ZM_hnfdivrem 491909
ZM_hnfdivrem_i 491924
ZM_isdiagonal 625729
ZM_ishnf 826798
ZM_isidentity 658095
ZM_isscalar 161018
ZM_max_expi 0
ZM_max_expi_i 0
ZM_max_lg 22781
ZM_max_lg_i 27705722
ZM_modhnf 14
ZM_mul 20956033
ZM_mul_classical 13776723
ZM_mul_diag 21
ZM_mul_fast 839
ZM_mul_i 21353211
ZM_mul_slice 1105
ZM_mul_sw 76382
ZM_mul_worker 1105
ZM_multosym 0
ZM_nc_mul_i 0
ZM_neg 1732952
ZM_nm_mul 0
ZM_pow 0
ZM_powu 23632
ZM_reducemodlll 0
ZM_reducemodmatrix 239851
ZM_reducemodmatrix_i 239851
ZM_sqr 25235
ZM_sqr_fast 0
ZM_sqr_i 25235
ZM_sqr_slice 0
ZM_sqr_worker 0
ZM_sub 156802
ZM_supnorm 4260
ZM_to_zm 1022
ZM_togglesign 0
ZM_transmul 2289
ZM_transmultosym 532221
ZM_zc_mul 17384993
ZM_zc_mul_i 19453238
ZM_zm_mul 976815
ZMrow_ZC_mul 135941588
ZMrow_ZC_mul_i 597769986
ZMrow_equal0 16231
ZRED 1170498
ZV_ZM_mul 231238
ZV_ZV_divrem 7
ZV_abscmp 19747
ZV_cmp 3252558
ZV_content 300486
ZV_dotproduct 16638838
ZV_dotproduct_i 19470600
ZV_dotsquare 6857747
ZV_equal 293285
ZV_equal0 14713761
ZV_equal_lg 6517261
ZV_max_expi 0
ZV_max_expi_i 0
ZV_max_lg 10640
ZV_max_lg_i 111618065
ZV_neg_inplace 391091
ZV_prod 8855986
ZV_sum 77
ZV_to_nv 496679
ZV_togglesign 5131587
ZV_zc_mul 2229556
Z_ZC_sub 584563
ZincrementalGS 1279159
Zupdate_row 402339
_ZM_mul 280
_ZM_sqr 24157
_mulii 319217536
add_slices 611056
check_ZV 1937450
matmodhnf 49
matmodhnf_check 98
nm_Z_mul 0
subtract_slices 534674
sw_bound 13853107
vecsmall_prod 14694393
zmV_to_ZMV 126
zm_to_Flm 22694
zm_to_ZM 157919
zvV_equal 1638
zv_ZM_mul 2408
zv_abs 77
zv_canon_inplace 22921521
zv_content 18614076
zv_dotproduct 196399119
zv_equal 30996277
zv_equal0 23113186
zv_neg 51876
zv_neg_inplace 126
zv_prod 950947
zv_prod_Z 1922700
zv_sum 16506
zv_sumpart 0
zv_to_Flv 366646
zv_z_mul 28668

Generated by: LCOV version 1.16