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 30849-48ff4d246c) Lines: 509 578 88.1 %
Date: 2026-05-01 09:26:53 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 5145
_RgM_cmul 5796
RgM_Rg_add 7618
RgM_transmultosym 7663
RgM_liftred 13398
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 58190
RgV_zm_mul 58956
RgMrow_zc_mul 70028
RgM_zc_mul 71981
RgV_zc_mul 83454
RgM_sub 174622
RgM_zc_mul_i 243872
RgV_zc_mul_i 293362
RgM_Rg_sub_shallow 317069
RgM_ZM_mul 356410
RgV_sub 381091
RgV_RgM_mul 425082
RgV_prod 455252
RgV_kill0 483814
RgM_neg 542310
RgM_Rg_div 604753
RgM_add 690886
scalarcol 787562
scalarmat 872877
RgV_dotproduct 1028321
RgC_neg 1048466
RgM_is_ZM 1362438
RgM_Rg_mul 1375745
scalarcol_shallow 1496311
RgM_ZC_mul_i 1942009
RgM_ZM_mul_worker 1942025
scalarcol_i 2283872
RgC_Rg_add 2519441
RgV_add 2601668
RgV_sum 3187772
_gmul 3342429
scalarmat_shallow 3374784
RgC_neg_i 4036597
RgC_Rg_div 4492405
RgM_mul_i 4723981
gram_matrix 4841125
RgC_sub 5004365
RgV_RgC_mul 5124685
RgC_sub_i 5924997
RgM_mul_fast 7625953
RgM_mul 7641739
RgMrow_zc_mul_i 8452717
matid 9172333
RgV_dotsquare 9750284
RgC_Rg_mul 12044370
fill_scalmat 13419700
RgC_add 15770312
RgV_dotproduct_i 15962849
RgC_add_i 19034075
RgM_RgC_mul 32232994
RgM_RgC_mul_fast 32232996
RgMrow_ZC_mul_i 32745675
RgM_RgC_mul_i 35172639
RgMrow_RgC_mul_i 118548912

Generated by: LCOV version 1.16