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: 2026-02-01 09:23:44 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 2519219
RgC_Rg_div 4492179
RgC_Rg_mul 11944735
RgC_Rg_sub 24155
RgC_add 15676448
RgC_add_i 18940208
RgC_is_ei 644
RgC_neg 1036151
RgC_neg_i 4024284
RgC_sub 5004048
RgC_sub_i 5926435
RgM_RgC_mul 32238943
RgM_RgC_mul_FpM 28
RgM_RgC_mul_FqM 28
RgM_RgC_mul_fast 32238894
RgM_RgC_mul_i 35174022
RgM_RgV_mul 0
RgM_Rg_add 7618
RgM_Rg_add_shallow 739
RgM_Rg_div 604665
RgM_Rg_mul 1384948
RgM_Rg_sub 0
RgM_Rg_sub_shallow 317083
RgM_ZC_mul_i 1940882
RgM_ZM_mul 356137
RgM_ZM_mul_worker 1940929
RgM_add 690886
RgM_det_triangular 22848
RgM_is_QM 203
RgM_is_ZM 1310751
RgM_isdiagonal 336
RgM_isidentity 3664
RgM_isscalar 18417
RgM_liftred 12712
RgM_mul 7640612
RgM_mul_FpM 57148
RgM_mul_FpM_i 57148
RgM_mul_FqM 26005
RgM_mul_QXQM 4795
RgM_mul_ZXQM 1491
RgM_mul_fast 7624835
RgM_mul_i 4723838
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 174778
RgM_sumcol 400
RgM_transmul 0
RgM_transmultosym 7663
RgM_zc_mul 71981
RgM_zc_mul_i 244298
RgM_zm_mul 58369
RgMrow_RgC_mul 4795
RgMrow_RgC_mul_i 118619518
RgMrow_ZC_mul_i 32817847
RgMrow_zc_mul 70028
RgMrow_zc_mul_i 8482804
RgV_RgC_mul 5122332
RgV_RgM_mul 296772
RgV_Rg_mul 38955
RgV_add 2601420
RgV_dotproduct 1026874
RgV_dotproduct_i 14173821
RgV_dotsquare 9751572
RgV_is_ZMV 49
RgV_kill0 482048
RgV_neg 4795
RgV_prod 454715
RgV_sub 356296
RgV_sum 3187475
RgV_sumpart 0
RgV_sumpart2 0
RgV_zc_mul 83454
RgV_zc_mul_i 209847
RgV_zm_mul 34160
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 3340168
fill_scalmat 13191645
gram_matrix 4841766
isdiagonal 315
matid 8944038
scalarcol 786066
scalarcol_i 2280855
scalarcol_shallow 1494789
scalarmat 872995
scalarmat_s 217
scalarmat_shallow 3374696

Generated by: LCOV version 1.16