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 30660-09c6d0ed2e) Lines: 509 578 88.1 %
Date: 2026-02-03 09:23:21 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 2519230
RgC_Rg_div 4492168
RgC_Rg_mul 11944825
RgC_Rg_sub 24155
RgC_add 15676503
RgC_add_i 18940263
RgC_is_ei 644
RgC_neg 1036196
RgC_neg_i 4024325
RgC_sub 5003944
RgC_sub_i 5926412
RgM_RgC_mul 32238199
RgM_RgC_mul_FpM 28
RgM_RgC_mul_FqM 28
RgM_RgC_mul_fast 32238203
RgM_RgC_mul_i 35173445
RgM_RgV_mul 0
RgM_Rg_add 7618
RgM_Rg_add_shallow 739
RgM_Rg_div 604670
RgM_Rg_mul 1384909
RgM_Rg_sub 0
RgM_Rg_sub_shallow 317066
RgM_ZC_mul_i 1940882
RgM_ZM_mul 356137
RgM_ZM_mul_worker 1940953
RgM_add 690886
RgM_det_triangular 22848
RgM_is_QM 203
RgM_is_ZM 1310659
RgM_isdiagonal 336
RgM_isidentity 3664
RgM_isscalar 18417
RgM_liftred 12712
RgM_mul 7640628
RgM_mul_FpM 57148
RgM_mul_FpM_i 57148
RgM_mul_FqM 26005
RgM_mul_QXQM 4795
RgM_mul_ZXQM 1491
RgM_mul_fast 7624863
RgM_mul_i 4723853
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 174707
RgM_sumcol 400
RgM_transmul 0
RgM_transmultosym 7663
RgM_zc_mul 71981
RgM_zc_mul_i 244199
RgM_zm_mul 58325
RgMrow_RgC_mul 4795
RgMrow_RgC_mul_i 118612547
RgMrow_ZC_mul_i 32809590
RgMrow_zc_mul 70028
RgMrow_zc_mul_i 8479138
RgV_RgC_mul 5122491
RgV_RgM_mul 296840
RgV_Rg_mul 38955
RgV_add 2601781
RgV_dotproduct 1026875
RgV_dotproduct_i 14174369
RgV_dotsquare 9751716
RgV_is_ZMV 49
RgV_kill0 482046
RgV_neg 4795
RgV_prod 454721
RgV_sub 356365
RgV_sum 3187480
RgV_sumpart 0
RgV_sumpart2 0
RgV_zc_mul 83454
RgV_zc_mul_i 210113
RgV_zm_mul 34230
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 3340049
fill_scalmat 13191898
gram_matrix 4841840
isdiagonal 315
matid 8944449
scalarcol 786063
scalarcol_i 2280823
scalarcol_shallow 1494753
scalarmat 872977
scalarmat_s 217
scalarmat_shallow 3374744

Generated by: LCOV version 1.16