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 30744-52374ab6cf) Lines: 509 578 88.1 %
Date: 2026-03-17 09:26:37 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 58161
RgV_zm_mul 59217
RgMrow_zc_mul 70028
RgM_zc_mul 71981
RgV_zc_mul 83454
RgM_sub 174540
RgM_zc_mul_i 243818
RgV_zc_mul_i 294356
RgM_Rg_sub_shallow 317018
RgM_ZM_mul 356417
RgV_sub 381353
RgV_RgM_mul 425363
RgV_prod 454998
RgV_kill0 483803
RgM_neg 542310
RgM_Rg_div 604754
RgM_add 690886
scalarcol 786167
scalarmat 873021
RgV_dotproduct 1028068
RgC_neg 1048433
RgM_is_ZM 1362771
RgM_Rg_mul 1385412
scalarcol_shallow 1496415
RgM_ZC_mul_i 1942098
RgM_ZM_mul_worker 1942127
scalarcol_i 2282578
RgC_Rg_add 2519459
RgV_add 2602027
RgV_sum 3187774
_gmul 3342631
scalarmat_shallow 3374806
RgC_neg_i 4036563
RgC_Rg_div 4492322
RgM_mul_i 4723318
gram_matrix 4840583
RgC_sub 5004432
RgV_RgC_mul 5124555
RgC_sub_i 5924389
RgM_mul_fast 7624393
RgM_mul 7640159
RgMrow_zc_mul_i 8456796
matid 9179892
RgV_dotsquare 9749194
RgC_Rg_mul 12044539
fill_scalmat 13427464
RgC_add 15772637
RgV_dotproduct_i 15964665
RgC_add_i 19036480
RgM_RgC_mul_fast 32233145
RgM_RgC_mul 32233151
RgMrow_ZC_mul_i 32819670
RgM_RgC_mul_i 35171130
RgMrow_RgC_mul_i 118558327

Generated by: LCOV version 1.16