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 30605-980f9eb85c) Lines: 839 988 84.9 %
Date: 2026-01-11 09:21:30 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 29897317
QM_QC_mul 126986
QM_mul 558714
QM_sqr 700
RgM_check_ZM 598160
RgM_issquare 42
RgV_check_ZV 1501242
ZC_Q_mul 2758062
ZC_ZV_mul 0
ZC_Z_add 366774
ZC_Z_div 3677012
ZC_Z_divexact 5779415
ZC_Z_mul 36167838
ZC_Z_sub 0
ZC_add 27086581
ZC_add_i 37116447
ZC_copy 18147052
ZC_divexactu 2261
ZC_hnfdivrem 10697103
ZC_hnfdivrem_i 11323905
ZC_is_ei 174398
ZC_lincomb 34823600
ZC_lincomb1 16037522
ZC_lincomb1_inplace 64124405
ZC_lincomb1_inplace_i 75181443
ZC_lincomb_1 757559
ZC_modhnf 280
ZC_neg 6357368
ZC_reducemodlll 97979
ZC_reducemodmatrix 112289
ZC_reducemodmatrix_i 112289
ZC_sub 9094282
ZC_sub_i 9427490
ZC_z_mul 64349
ZMV_to_zmV 49
ZM_Q_mul 1140904
ZM_ZC_mul 25801093
ZM_ZC_mul_i 77637260
ZM_ZV_divrem 0
ZM_Z_div 19308
ZM_Z_divexact 530245
ZM_Z_mul 3381250
ZM_add 844494
ZM_copy 667223
ZM_det_triangular 4147742
ZM_diag_mul 578776
ZM_divexactu 441
ZM_equal 3499368
ZM_equal0 32292
ZM_hnfdivrem 491781
ZM_hnfdivrem_i 491797
ZM_isdiagonal 625496
ZM_ishnf 826602
ZM_isidentity 658033
ZM_isscalar 161808
ZM_max_expi 0
ZM_max_expi_i 0
ZM_max_lg 22661
ZM_max_lg_i 27713995
ZM_modhnf 14
ZM_mul 20963693
ZM_mul_classical 13780889
ZM_mul_diag 21
ZM_mul_fast 839
ZM_mul_i 21360919
ZM_mul_slice 1104
ZM_mul_sw 76375
ZM_mul_worker 1104
ZM_multosym 0
ZM_nc_mul_i 0
ZM_neg 1733933
ZM_nm_mul 0
ZM_pow 0
ZM_powu 23618
ZM_reducemodlll 0
ZM_reducemodmatrix 239846
ZM_reducemodmatrix_i 239846
ZM_sqr 25221
ZM_sqr_fast 0
ZM_sqr_i 25221
ZM_sqr_slice 0
ZM_sqr_worker 0
ZM_sub 157038
ZM_supnorm 4260
ZM_to_zm 1022
ZM_togglesign 0
ZM_transmul 2289
ZM_transmultosym 532221
ZM_zc_mul 17958877
ZM_zc_mul_i 20028171
ZM_zm_mul 977058
ZMrow_ZC_mul 137949095
ZMrow_ZC_mul_i 599807328
ZMrow_equal0 16231
ZRED 1170517
ZV_ZM_mul 231238
ZV_ZV_divrem 7
ZV_abscmp 19747
ZV_cmp 3253678
ZV_content 300477
ZV_dotproduct 16640177
ZV_dotproduct_i 19470996
ZV_dotsquare 6859158
ZV_equal 293349
ZV_equal0 14714530
ZV_equal_lg 6517750
ZV_max_expi 0
ZV_max_expi_i 0
ZV_max_lg 10640
ZV_max_lg_i 111641854
ZV_neg_inplace 391015
ZV_prod 8855801
ZV_sum 77
ZV_to_nv 496482
ZV_togglesign 5125583
ZV_zc_mul 2229556
Z_ZC_sub 584352
ZincrementalGS 1279160
Zupdate_row 402335
_ZM_mul 280
_ZM_sqr 24143
_mulii 319217930
add_slices 611000
check_ZV 1937468
matmodhnf 49
matmodhnf_check 98
nm_Z_mul 0
subtract_slices 534625
sw_bound 13857259
vecsmall_prod 14694393
zmV_to_ZMV 126
zm_to_Flm 22694
zm_to_ZM 158162
zvV_equal 1638
zv_ZM_mul 2408
zv_abs 77
zv_canon_inplace 22921521
zv_content 19538807
zv_dotproduct 196399119
zv_equal 31000362
zv_equal0 23113193
zv_neg 51864
zv_neg_inplace 126
zv_prod 950932
zv_prod_Z 1922690
zv_sum 16516
zv_sumpart 0
zv_to_Flv 366646
zv_z_mul 28662

Generated by: LCOV version 1.16