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 30672-116f3d5b0e) Lines: 509 578 88.1 %
Date: 2026-02-07 09:23:42 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
RgC_RgV_mul 1687
RgC_Rg_add 2519240
RgC_Rg_div 4492286
RgC_Rg_mul 11944764
RgC_Rg_sub 24155
RgC_add 15676440
RgC_add_i 18940200
RgC_is_ei 644
RgC_neg 1036148
RgC_neg_i 4024278
RgC_sub 5003881
RgC_sub_i 5924357
RgM_RgC_mul 32238368
RgM_RgC_mul_FpM 28
RgM_RgC_mul_FqM 28
RgM_RgC_mul_fast 32238473
RgM_RgC_mul_i 35169547
RgM_RgV_mul 0
RgM_Rg_add 7618
RgM_Rg_add_shallow 739
RgM_Rg_div 604678
RgM_Rg_mul 1384970
RgM_Rg_sub 0
RgM_Rg_sub_shallow 317024
RgM_ZC_mul_i 1940790
RgM_ZM_mul 356127
RgM_ZM_mul_worker 1940876
RgM_add 690886
RgM_det_triangular 22848
RgM_is_QM 203
RgM_is_ZM 1310645
RgM_isdiagonal 336
RgM_isidentity 3664
RgM_isscalar 18417
RgM_liftred 12712
RgM_mul 7640054
RgM_mul_FpM 57148
RgM_mul_FpM_i 57148
RgM_mul_FqM 26005
RgM_mul_QXQM 4795
RgM_mul_ZXQM 1491
RgM_mul_fast 7624275
RgM_mul_i 4723260
RgM_multosym 0
RgM_neg 542310
RgM_powers 168
RgM_sqr 1407
RgM_sqr_QXQM 7
RgM_sqr_ZXQM 133
RgM_sqr_fast 1372
RgM_sub 174620
RgM_sumcol 400
RgM_transmul 0
RgM_transmultosym 7663
RgM_zc_mul 71981
RgM_zc_mul_i 243932
RgM_zm_mul 58249
RgMrow_RgC_mul 4795
RgMrow_RgC_mul_i 118558294
RgMrow_ZC_mul_i 32821954
RgMrow_zc_mul 70028
RgMrow_zc_mul_i 8451432
RgV_RgC_mul 5122480
RgV_RgM_mul 296762
RgV_Rg_mul 38955
RgV_add 2601748
RgV_dotproduct 1026875
RgV_dotproduct_i 14173447
RgV_dotsquare 9751103
RgV_is_ZMV 49
RgV_kill0 482050
RgV_neg 4795
RgV_prod 454718
RgV_sub 356286
RgV_sum 3187457
RgV_sumpart 0
RgV_sumpart2 0
RgV_zc_mul 83454
RgV_zc_mul_i 209894
RgV_zm_mul 34150
RgX_RgMV_eval 490
RgX_RgM_eval 1470
RgX_is_monic_ZX 4844
Rg_RgC_sub 32766
_RgM_add 3836
_RgM_cmul 5796
_RgM_mul 763
_RgM_one 4221
_RgM_red 2954
_RgM_sqr 238
_RgM_sub 0
_RgM_zero 0
_gmul 3339978
fill_scalmat 13191539
gram_matrix 4841523
isdiagonal 315
matid 8944066
scalarcol 786064
scalarcol_i 2280777
scalarcol_shallow 1494707
scalarmat 872983
scalarmat_s 217
scalarmat_shallow 3374789

Generated by: LCOV version 1.16