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 30773-2078653b96) Lines: 509 578 88.1 %
Date: 2026-04-01 09:27:34 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 1491
RgC_RgV_mul 1687
_RgM_red 2954
RgM_isidentity 3664
_RgM_add 3836
_RgM_one 4221
RgM_mul_QXQM 4795
RgMrow_RgC_mul 4795
RgX_is_monic_ZX 4844
RgV_neg 5145
_RgM_cmul 5796
RgM_Rg_add 7618
RgM_transmultosym 7663
RgM_liftred 12712
RgM_isscalar 18417
RgM_det_triangular 22848
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 58160
RgV_zm_mul 59062
RgMrow_zc_mul 70028
RgM_zc_mul 71981
RgV_zc_mul 83454
RgM_sub 174533
RgM_zc_mul_i 243824
RgV_zc_mul_i 293728
RgM_Rg_sub_shallow 317027
RgM_ZM_mul 356417
RgV_sub 381197
RgV_RgM_mul 425210
RgV_prod 455002
RgV_kill0 483805
RgM_neg 542310
RgM_Rg_div 604747
RgM_add 690886
scalarcol 786165
scalarmat 872958
RgV_dotproduct 1028071
RgC_neg 1048630
RgM_is_ZM 1362416
RgM_Rg_mul 1385348
scalarcol_shallow 1496346
RgM_ZC_mul_i 1942135
RgM_ZM_mul_worker 1942194
scalarcol_i 2282506
RgC_Rg_add 2519413
RgV_add 2601073
RgV_sum 3187780
_gmul 3342618
scalarmat_shallow 3374899
RgC_neg_i 4036760
RgC_Rg_div 4492316
RgM_mul_i 4723297
gram_matrix 4840584
RgC_sub 5004284
RgV_RgC_mul 5124695
RgC_sub_i 5924074
RgM_mul_fast 7624353
RgM_mul 7640130
RgMrow_zc_mul_i 8457373
matid 9179559
RgV_dotsquare 9749214
RgC_Rg_mul 12044689
fill_scalmat 13427058
RgC_add 15770616
RgV_dotproduct_i 15963161
RgC_add_i 19034381
RgM_RgC_mul 32233180
RgM_RgC_mul_fast 32233180
RgMrow_ZC_mul_i 32778868
RgM_RgC_mul_i 35170874
RgMrow_RgC_mul_i 118556701

Generated by: LCOV version 1.16