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 30480-572da319a6) Lines: 839 988 84.9 %
Date: 2025-08-27 09:24:05 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 29896067
QM_QC_mul 126986
QM_mul 558707
QM_sqr 700
RgM_check_ZM 598284
RgM_issquare 42
RgV_check_ZV 1499105
ZC_Q_mul 2757975
ZC_ZV_mul 0
ZC_Z_add 366840
ZC_Z_div 3676709
ZC_Z_divexact 5780927
ZC_Z_mul 36144244
ZC_Z_sub 0
ZC_add 27075462
ZC_add_i 37105741
ZC_copy 18132869
ZC_divexactu 2261
ZC_hnfdivrem 10681801
ZC_hnfdivrem_i 11308640
ZC_is_ei 174398
ZC_lincomb 34779996
ZC_lincomb1 16020714
ZC_lincomb1_inplace 64104556
ZC_lincomb1_inplace_i 75159533
ZC_lincomb_1 757541
ZC_modhnf 280
ZC_neg 6355063
ZC_reducemodlll 97982
ZC_reducemodmatrix 112291
ZC_reducemodmatrix_i 112291
ZC_sub 9086044
ZC_sub_i 9418012
ZC_z_mul 64252
ZMV_to_zmV 49
ZM_Q_mul 1140729
ZM_ZC_mul 25780467
ZM_ZC_mul_i 77599389
ZM_ZV_divrem 0
ZM_Z_div 19308
ZM_Z_divexact 530421
ZM_Z_mul 3379158
ZM_add 844663
ZM_copy 667094
ZM_det_triangular 4142006
ZM_diag_mul 578890
ZM_divexactu 441
ZM_equal 3494944
ZM_equal0 32292
ZM_hnfdivrem 491854
ZM_hnfdivrem_i 491872
ZM_isdiagonal 625691
ZM_ishnf 826744
ZM_isidentity 658059
ZM_isscalar 161004
ZM_max_expi 0
ZM_max_expi_i 0
ZM_max_lg 22781
ZM_max_lg_i 27699504
ZM_modhnf 14
ZM_mul 20948593
ZM_mul_classical 13773581
ZM_mul_diag 21
ZM_mul_fast 839
ZM_mul_i 21345852
ZM_mul_slice 1105
ZM_mul_sw 76382
ZM_mul_worker 1105
ZM_multosym 0
ZM_nc_mul_i 0
ZM_neg 1732796
ZM_nm_mul 0
ZM_pow 0
ZM_powu 23632
ZM_reducemodlll 0
ZM_reducemodmatrix 239855
ZM_reducemodmatrix_i 239855
ZM_sqr 25235
ZM_sqr_fast 0
ZM_sqr_i 25235
ZM_sqr_slice 0
ZM_sqr_worker 0
ZM_sub 156747
ZM_supnorm 4260
ZM_to_zm 1022
ZM_togglesign 0
ZM_transmul 2289
ZM_transmultosym 532221
ZM_zc_mul 17383505
ZM_zc_mul_i 19451520
ZM_zm_mul 976763
ZMrow_ZC_mul 135931168
ZMrow_ZC_mul_i 597694787
ZMrow_equal0 16231
ZRED 1170518
ZV_ZM_mul 231224
ZV_ZV_divrem 7
ZV_abscmp 19747
ZV_cmp 3251295
ZV_content 300489
ZV_dotproduct 16638097
ZV_dotproduct_i 19469899
ZV_dotsquare 6857701
ZV_equal 293278
ZV_equal0 14708144
ZV_equal_lg 6510975
ZV_max_expi 0
ZV_max_expi_i 0
ZV_max_lg 10640
ZV_max_lg_i 111598966
ZV_neg_inplace 391080
ZV_prod 8855962
ZV_sum 77
ZV_to_nv 496679
ZV_togglesign 5129529
ZV_zc_mul 2229556
Z_ZC_sub 584552
ZincrementalGS 1279197
Zupdate_row 402293
_ZM_mul 280
_ZM_sqr 24157
_mulii 319217413
add_slices 611056
check_ZV 1937441
matmodhnf 49
matmodhnf_check 98
nm_Z_mul 0
subtract_slices 534674
sw_bound 13849962
vecsmall_prod 14694393
zmV_to_ZMV 126
zm_to_Flm 22694
zm_to_ZM 157867
zvV_equal 1638
zv_ZM_mul 2408
zv_abs 77
zv_canon_inplace 22921521
zv_content 18614385
zv_dotproduct 196399119
zv_equal 30996415
zv_equal0 23113166
zv_neg 51870
zv_neg_inplace 126
zv_prod 951001
zv_prod_Z 1933163
zv_sum 16504
zv_sumpart 0
zv_to_Flv 366646
zv_z_mul 28670

Generated by: LCOV version 1.16