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 30391-f41a6adeb0) Lines: 839 988 84.9 %
Date: 2025-07-14 09:22:41 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 29894036
QM_QC_mul 126986
QM_mul 558644
QM_sqr 700
RgM_check_ZM 644151
RgM_issquare 42
RgV_check_ZV 1499104
ZC_Q_mul 2757762
ZC_ZV_mul 0
ZC_Z_add 366852
ZC_Z_div 3676691
ZC_Z_divexact 5780740
ZC_Z_mul 36137471
ZC_Z_sub 0
ZC_add 27071674
ZC_add_i 37101753
ZC_copy 18129262
ZC_divexactu 2261
ZC_hnfdivrem 10681719
ZC_hnfdivrem_i 11308589
ZC_is_ei 174398
ZC_lincomb 34779912
ZC_lincomb1 16020695
ZC_lincomb1_inplace 64088439
ZC_lincomb1_inplace_i 75145410
ZC_lincomb_1 757548
ZC_modhnf 280
ZC_neg 6354894
ZC_reducemodlll 97982
ZC_reducemodmatrix 112286
ZC_reducemodmatrix_i 112286
ZC_sub 9086110
ZC_sub_i 9418015
ZC_z_mul 64254
ZMV_to_zmV 49
ZM_Q_mul 1140683
ZM_ZC_mul 25779018
ZM_ZC_mul_i 77620787
ZM_ZV_divrem 0
ZM_Z_div 19308
ZM_Z_divexact 530399
ZM_Z_mul 3378898
ZM_add 844554
ZM_copy 667048
ZM_det_triangular 4141808
ZM_diag_mul 578866
ZM_divexactu 441
ZM_equal 3494826
ZM_equal0 73997
ZM_hnfdivrem 491844
ZM_hnfdivrem_i 491859
ZM_isdiagonal 625693
ZM_ishnf 826669
ZM_isidentity 658097
ZM_isscalar 160977
ZM_max_expi 0
ZM_max_expi_i 0
ZM_max_lg 22781
ZM_max_lg_i 27756834
ZM_modhnf 14
ZM_mul 20986397
ZM_mul_classical 13802379
ZM_mul_diag 21
ZM_mul_fast 839
ZM_mul_i 21383689
ZM_mul_slice 1104
ZM_mul_sw 76382
ZM_mul_worker 1104
ZM_multosym 0
ZM_nc_mul_i 0
ZM_neg 1732246
ZM_nm_mul 0
ZM_pow 0
ZM_powu 23632
ZM_reducemodlll 0
ZM_reducemodmatrix 239851
ZM_reducemodmatrix_i 239851
ZM_sqr 25235
ZM_sqr_fast 0
ZM_sqr_i 25235
ZM_sqr_slice 0
ZM_sqr_worker 0
ZM_sub 156696
ZM_supnorm 4260
ZM_to_zm 1022
ZM_togglesign 0
ZM_transmul 2289
ZM_transmultosym 532221
ZM_zc_mul 17289633
ZM_zc_mul_i 19357325
ZM_zm_mul 976578
ZMrow_ZC_mul 135846189
ZMrow_ZC_mul_i 597635077
ZMrow_equal0 16231
ZRED 1170445
ZV_ZM_mul 231175
ZV_ZV_divrem 7
ZV_abscmp 19747
ZV_cmp 3249935
ZV_content 300440
ZV_dotproduct 16636325
ZV_dotproduct_i 19469068
ZV_dotsquare 6856122
ZV_equal 293273
ZV_equal0 14707495
ZV_equal_lg 6510725
ZV_max_expi 0
ZV_max_expi_i 0
ZV_max_lg 10640
ZV_max_lg_i 111679687
ZV_neg_inplace 391040
ZV_prod 8855919
ZV_sum 77
ZV_to_nv 496660
ZV_togglesign 5126875
ZV_zc_mul 2229528
Z_ZC_sub 584540
ZincrementalGS 1279130
Zupdate_row 402271
_ZM_mul 280
_ZM_sqr 24157
_mulii 319217462
add_slices 611056
check_ZV 2029191
matmodhnf 49
matmodhnf_check 98
nm_Z_mul 0
subtract_slices 534674
sw_bound 13878732
vecsmall_prod 14694393
zmV_to_ZMV 126
zm_to_Flm 22694
zm_to_ZM 157807
zvV_equal 1638
zv_ZM_mul 2408
zv_abs 77
zv_canon_inplace 22921521
zv_content 18464234
zv_dotproduct 196399119
zv_equal 30996340
zv_equal0 23113174
zv_neg 51867
zv_neg_inplace 126
zv_prod 950987
zv_prod_Z 1933130
zv_sum 16507
zv_sumpart 0
zv_to_Flv 366646
zv_z_mul 28668

Generated by: LCOV version 1.16