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 30462-6c568f4018) Lines: 839 988 84.9 %
Date: 2025-08-10 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 29900951
QM_QC_mul 126986
QM_mul 558707
QM_sqr 700
RgM_check_ZM 598282
RgM_issquare 42
RgV_check_ZV 1499104
ZC_Q_mul 2757978
ZC_ZV_mul 0
ZC_Z_add 366848
ZC_Z_div 3676720
ZC_Z_divexact 5780840
ZC_Z_mul 36144034
ZC_Z_sub 0
ZC_add 27075765
ZC_add_i 37105812
ZC_copy 18133795
ZC_divexactu 2261
ZC_hnfdivrem 10681851
ZC_hnfdivrem_i 11308784
ZC_is_ei 174398
ZC_lincomb 34780519
ZC_lincomb1 16020588
ZC_lincomb1_inplace 64112187
ZC_lincomb1_inplace_i 75167157
ZC_lincomb_1 757600
ZC_modhnf 280
ZC_neg 6355492
ZC_reducemodlll 97983
ZC_reducemodmatrix 112288
ZC_reducemodmatrix_i 112288
ZC_sub 9086068
ZC_sub_i 9418475
ZC_z_mul 64252
ZMV_to_zmV 49
ZM_Q_mul 1140742
ZM_ZC_mul 25780630
ZM_ZC_mul_i 77602377
ZM_ZV_divrem 0
ZM_Z_div 19308
ZM_Z_divexact 530419
ZM_Z_mul 3378954
ZM_add 844554
ZM_copy 667216
ZM_det_triangular 4142145
ZM_diag_mul 578864
ZM_divexactu 441
ZM_equal 3494876
ZM_equal0 32292
ZM_hnfdivrem 491873
ZM_hnfdivrem_i 491888
ZM_isdiagonal 625687
ZM_ishnf 826738
ZM_isidentity 658082
ZM_isscalar 161007
ZM_max_expi 0
ZM_max_expi_i 0
ZM_max_lg 22781
ZM_max_lg_i 27700740
ZM_modhnf 14
ZM_mul 20949135
ZM_mul_classical 13774198
ZM_mul_diag 21
ZM_mul_fast 839
ZM_mul_i 21346426
ZM_mul_slice 1105
ZM_mul_sw 76382
ZM_mul_worker 1105
ZM_multosym 0
ZM_nc_mul_i 0
ZM_neg 1732903
ZM_nm_mul 0
ZM_pow 0
ZM_powu 23631
ZM_reducemodlll 0
ZM_reducemodmatrix 239849
ZM_reducemodmatrix_i 239848
ZM_sqr 25234
ZM_sqr_fast 0
ZM_sqr_i 25235
ZM_sqr_slice 0
ZM_sqr_worker 0
ZM_sub 156832
ZM_supnorm 4260
ZM_to_zm 1022
ZM_togglesign 0
ZM_transmul 2289
ZM_transmultosym 532221
ZM_zc_mul 17383126
ZM_zc_mul_i 19451623
ZM_zm_mul 976849
ZMrow_ZC_mul 135930641
ZMrow_ZC_mul_i 597720477
ZMrow_equal0 16231
ZRED 1170439
ZV_ZM_mul 231224
ZV_ZV_divrem 7
ZV_abscmp 19747
ZV_cmp 3251297
ZV_content 300486
ZV_dotproduct 16638598
ZV_dotproduct_i 19470468
ZV_dotsquare 6857642
ZV_equal 293284
ZV_equal0 14709529
ZV_equal_lg 6510822
ZV_max_expi 0
ZV_max_expi_i 0
ZV_max_lg 10640
ZV_max_lg_i 111607148
ZV_neg_inplace 391067
ZV_prod 8855949
ZV_sum 77
ZV_to_nv 496674
ZV_togglesign 5132097
ZV_zc_mul 2229556
Z_ZC_sub 584561
ZincrementalGS 1279161
Zupdate_row 402323
_ZM_mul 280
_ZM_sqr 24156
_mulii 319218206
add_slices 611056
check_ZV 1937435
matmodhnf 49
matmodhnf_check 98
nm_Z_mul 0
subtract_slices 534674
sw_bound 13850579
vecsmall_prod 14694393
zmV_to_ZMV 126
zm_to_Flm 22694
zm_to_ZM 157953
zvV_equal 1638
zv_ZM_mul 2408
zv_abs 77
zv_canon_inplace 22921521
zv_content 18614660
zv_dotproduct 196399119
zv_equal 30996359
zv_equal0 23113176
zv_neg 51870
zv_neg_inplace 126
zv_prod 951001
zv_prod_Z 1933168
zv_sum 16503
zv_sumpart 0
zv_to_Flv 366646
zv_z_mul 28669

Generated by: LCOV version 1.16