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 30497-174c393803) Lines: 839 988 84.9 %
Date: 2025-09-15 09:23:33 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 29900874
QM_QC_mul 126986
QM_mul 558714
QM_sqr 700
RgM_check_ZM 598281
RgM_issquare 42
RgV_check_ZV 1501236
ZC_Q_mul 2758006
ZC_ZV_mul 0
ZC_Z_add 366839
ZC_Z_div 3676704
ZC_Z_divexact 5780927
ZC_Z_mul 36159365
ZC_Z_sub 0
ZC_add 27083307
ZC_add_i 37113544
ZC_copy 18145546
ZC_divexactu 2261
ZC_hnfdivrem 10690339
ZC_hnfdivrem_i 11317107
ZC_is_ei 174398
ZC_lincomb 34787400
ZC_lincomb1 16020750
ZC_lincomb1_inplace 64126051
ZC_lincomb1_inplace_i 75184752
ZC_lincomb_1 757590
ZC_modhnf 280
ZC_neg 6356124
ZC_reducemodlll 97981
ZC_reducemodmatrix 112284
ZC_reducemodmatrix_i 112284
ZC_sub 9092652
ZC_sub_i 9425217
ZC_z_mul 64281
ZMV_to_zmV 49
ZM_Q_mul 1140799
ZM_ZC_mul 25787345
ZM_ZC_mul_i 77614398
ZM_ZV_divrem 0
ZM_Z_div 19308
ZM_Z_divexact 530439
ZM_Z_mul 3381219
ZM_add 844628
ZM_copy 667282
ZM_det_triangular 4146433
ZM_diag_mul 578907
ZM_divexactu 441
ZM_equal 3499140
ZM_equal0 32292
ZM_hnfdivrem 491873
ZM_hnfdivrem_i 491888
ZM_isdiagonal 625742
ZM_ishnf 826751
ZM_isidentity 658127
ZM_isscalar 160990
ZM_max_expi 0
ZM_max_expi_i 0
ZM_max_lg 22780
ZM_max_lg_i 27706629
ZM_modhnf 14
ZM_mul 20956458
ZM_mul_classical 13777209
ZM_mul_diag 21
ZM_mul_fast 839
ZM_mul_i 21353632
ZM_mul_slice 1104
ZM_mul_sw 76382
ZM_mul_worker 1104
ZM_multosym 0
ZM_nc_mul_i 0
ZM_neg 1733084
ZM_nm_mul 0
ZM_pow 0
ZM_powu 23631
ZM_reducemodlll 0
ZM_reducemodmatrix 239851
ZM_reducemodmatrix_i 239852
ZM_sqr 25235
ZM_sqr_fast 0
ZM_sqr_i 25235
ZM_sqr_slice 0
ZM_sqr_worker 0
ZM_sub 156877
ZM_supnorm 4260
ZM_to_zm 1022
ZM_togglesign 0
ZM_transmul 2289
ZM_transmultosym 532221
ZM_zc_mul 17385732
ZM_zc_mul_i 19454348
ZM_zm_mul 976889
ZMrow_ZC_mul 135942078
ZMrow_ZC_mul_i 597788750
ZMrow_equal0 16231
ZRED 1170473
ZV_ZM_mul 231238
ZV_ZV_divrem 7
ZV_abscmp 19747
ZV_cmp 3252531
ZV_content 300492
ZV_dotproduct 16639252
ZV_dotproduct_i 19470947
ZV_dotsquare 6857803
ZV_equal 293288
ZV_equal0 14714791
ZV_equal_lg 6517285
ZV_max_expi 0
ZV_max_expi_i 0
ZV_max_lg 10640
ZV_max_lg_i 111623088
ZV_neg_inplace 391078
ZV_prod 8855973
ZV_sum 77
ZV_to_nv 496669
ZV_togglesign 5133261
ZV_zc_mul 2229556
Z_ZC_sub 584550
ZincrementalGS 1279184
Zupdate_row 402327
_ZM_mul 280
_ZM_sqr 24157
_mulii 319217583
add_slices 611056
check_ZV 1937434
matmodhnf 49
matmodhnf_check 98
nm_Z_mul 0
subtract_slices 534674
sw_bound 13853597
vecsmall_prod 14694393
zmV_to_ZMV 126
zm_to_Flm 22694
zm_to_ZM 157992
zvV_equal 1638
zv_ZM_mul 2408
zv_abs 77
zv_canon_inplace 22921521
zv_content 18614758
zv_dotproduct 196399119
zv_equal 30996397
zv_equal0 23113192
zv_neg 51872
zv_neg_inplace 126
zv_prod 951000
zv_prod_Z 1922704
zv_sum 16504
zv_sumpart 0
zv_to_Flv 366646
zv_z_mul 28667

Generated by: LCOV version 1.16