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 - RgV.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30862-ea47bd413c) Lines: 509 578 88.1 %
Date: 2026-05-06 09:26:47 Functions: 95 104 91.3 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
RgC_RgM_mul 0
RgM_RgV_mul 0
RgM_Rg_sub 0
RgM_multosym 0
RgM_transmul 0
RgV_sumpart 0
RgV_sumpart2 0
_RgM_sub 0
_RgM_zero 0
RgM_sqr_QXQM 7
RgM_RgC_mul_FpM 28
RgM_RgC_mul_FqM 28
RgV_is_ZMV 49
RgM_sqr_ZXQM 133
RgM_powers 168
RgM_is_QM 203
scalarmat_s 217
_RgM_sqr 238
isdiagonal 315
RgM_isdiagonal 336
RgM_sumcol 400
RgX_RgMV_eval 490
RgC_is_ei 644
RgM_Rg_add_shallow 739
_RgM_mul 763
RgM_sqr_fast 1372
RgM_sqr 1407
RgX_RgM_eval 1470
RgM_mul_ZXQM 1582
RgC_RgV_mul 1687
_RgM_red 2954
RgM_isidentity 3664
_RgM_add 3836
_RgM_one 4221
RgMrow_RgC_mul 4795
RgM_mul_QXQM 5047
RgX_is_monic_ZX 5096
RgV_neg 5271
_RgM_cmul 5796
RgM_transmultosym 7663
RgM_Rg_add 7878
RgM_liftred 13398
RgM_isscalar 18417
RgM_det_triangular 22855
RgC_Rg_sub 24155
RgM_mul_FqM 26005
Rg_RgC_sub 32766
RgV_Rg_mul 38990
RgM_mul_FpM 57148
RgM_mul_FpM_i 57148
RgM_zm_mul 58180
RgV_zm_mul 58908
RgMrow_zc_mul 70028
RgM_zc_mul 71981
RgV_zc_mul 83454
RgM_sub 174575
RgM_zc_mul_i 243870
RgV_zc_mul_i 293122
RgM_Rg_sub_shallow 317026
RgM_ZM_mul 356709
RgV_sub 381044
RgV_RgM_mul 425445
RgV_prod 455519
RgV_kill0 484897
RgM_neg 542310
RgM_Rg_div 604753
RgM_add 690886
scalarcol 787861
scalarmat 872962
RgV_dotproduct 1030126
RgC_neg 1052125
RgM_is_ZM 1362399
RgM_Rg_mul 1377529
scalarcol_shallow 1496627
RgM_ZC_mul_i 1942407
RgM_ZM_mul_worker 1942441
scalarcol_i 2284477
RgC_Rg_add 2519458
RgV_add 2604553
RgV_sum 3192967
_gmul 3342269
scalarmat_shallow 3376324
RgC_neg_i 4040258
RgC_Rg_div 4493951
RgM_mul_i 4724233
gram_matrix 4843605
RgC_sub 5004443
RgV_RgC_mul 5126095
RgC_sub_i 5924677
RgM_mul_fast 7626202
RgM_mul 7641988
RgMrow_zc_mul_i 8457800
matid 9172782
RgV_dotsquare 9755251
RgC_Rg_mul 12049032
fill_scalmat 13421641
RgC_add 15773184
RgV_dotproduct_i 15969057
RgC_add_i 19036949
RgM_RgC_mul_fast 32241294
RgM_RgC_mul 32241295
RgMrow_ZC_mul_i 32757755
RgM_RgC_mul_i 35181582
RgMrow_RgC_mul_i 118578236

Generated by: LCOV version 1.16