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 30586-ccf601f509) Lines: 839 988 84.9 %
Date: 2025-12-26 09:21:14 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 29897638
QM_QC_mul 126986
QM_mul 558714
QM_sqr 700
RgM_check_ZM 598249
RgM_issquare 42
RgV_check_ZV 1501268
ZC_Q_mul 2758065
ZC_ZV_mul 0
ZC_Z_add 366753
ZC_Z_div 3676924
ZC_Z_divexact 5779694
ZC_Z_mul 36161087
ZC_Z_sub 0
ZC_add 27086004
ZC_add_i 37116050
ZC_copy 18146164
ZC_divexactu 2261
ZC_hnfdivrem 10695725
ZC_hnfdivrem_i 11322604
ZC_is_ei 174398
ZC_lincomb 34809900
ZC_lincomb1 16035320
ZC_lincomb1_inplace 64130739
ZC_lincomb1_inplace_i 75191348
ZC_lincomb_1 757512
ZC_modhnf 280
ZC_neg 6357550
ZC_reducemodlll 97983
ZC_reducemodmatrix 112294
ZC_reducemodmatrix_i 112294
ZC_sub 9093832
ZC_sub_i 9426428
ZC_z_mul 64349
ZMV_to_zmV 49
ZM_Q_mul 1140930
ZM_ZC_mul 25793114
ZM_ZC_mul_i 77633789
ZM_ZV_divrem 0
ZM_Z_div 19308
ZM_Z_divexact 530344
ZM_Z_mul 3381346
ZM_add 844537
ZM_copy 666936
ZM_det_triangular 4146219
ZM_diag_mul 578721
ZM_divexactu 441
ZM_equal 3499397
ZM_equal0 32292
ZM_hnfdivrem 491792
ZM_hnfdivrem_i 491814
ZM_isdiagonal 625480
ZM_ishnf 826621
ZM_isidentity 658082
ZM_isscalar 160808
ZM_max_expi 0
ZM_max_expi_i 0
ZM_max_lg 22662
ZM_max_lg_i 27714547
ZM_modhnf 14
ZM_mul 20961658
ZM_mul_classical 13781232
ZM_mul_diag 21
ZM_mul_fast 839
ZM_mul_i 21358902
ZM_mul_slice 1103
ZM_mul_sw 76382
ZM_mul_worker 1103
ZM_multosym 0
ZM_nc_mul_i 0
ZM_neg 1733976
ZM_nm_mul 0
ZM_pow 0
ZM_powu 23618
ZM_reducemodlll 0
ZM_reducemodmatrix 239830
ZM_reducemodmatrix_i 239852
ZM_sqr 25221
ZM_sqr_fast 0
ZM_sqr_i 25221
ZM_sqr_slice 0
ZM_sqr_worker 0
ZM_sub 156780
ZM_supnorm 4260
ZM_to_zm 1022
ZM_togglesign 0
ZM_transmul 2289
ZM_transmultosym 532221
ZM_zc_mul 17519681
ZM_zc_mul_i 19588344
ZM_zm_mul 976811
ZMrow_ZC_mul 137349490
ZMrow_ZC_mul_i 599280847
ZMrow_equal0 16231
ZRED 1170559
ZV_ZM_mul 231238
ZV_ZV_divrem 7
ZV_abscmp 19747
ZV_cmp 3253665
ZV_content 300477
ZV_dotproduct 16640696
ZV_dotproduct_i 19471434
ZV_dotsquare 6859039
ZV_equal 293377
ZV_equal0 14714400
ZV_equal_lg 6517860
ZV_max_expi 0
ZV_max_expi_i 0
ZV_max_lg 10640
ZV_max_lg_i 111650771
ZV_neg_inplace 391066
ZV_prod 8855726
ZV_sum 77
ZV_to_nv 496486
ZV_togglesign 5127208
ZV_zc_mul 2229556
Z_ZC_sub 584371
ZincrementalGS 1279230
Zupdate_row 402286
_ZM_mul 280
_ZM_sqr 24143
_mulii 319217958
add_slices 611056
check_ZV 1937657
matmodhnf 49
matmodhnf_check 98
nm_Z_mul 0
subtract_slices 534674
sw_bound 13857586
vecsmall_prod 14694393
zmV_to_ZMV 126
zm_to_Flm 22694
zm_to_ZM 157915
zvV_equal 1638
zv_ZM_mul 2408
zv_abs 77
zv_canon_inplace 22921521
zv_content 18814875
zv_dotproduct 196399119
zv_equal 31000170
zv_equal0 23113169
zv_neg 51874
zv_neg_inplace 126
zv_prod 950951
zv_prod_Z 1922679
zv_sum 16519
zv_sumpart 0
zv_to_Flv 366646
zv_z_mul 28670

Generated by: LCOV version 1.16