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 - FpV.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30604-e5d817ee12) Lines: 737 989 74.5 %
Date: 2026-01-09 09:21:43 Functions: 110 139 79.1 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl_to_intmod 578850
Flc_Flv_mul 14
Flc_to_mod 28
Flm_Fl_add 51178
Flm_Fl_mul 82642
Flm_Fl_mul_OK 8646808
Flm_Fl_mul_inplace 0
Flm_Fl_mul_pre 26078238
Flm_Fl_mul_pre_i 17514090
Flm_Fl_sub 3710
Flm_Flc_mul 1086772
Flm_Flc_mul_i 93905146
Flm_Flc_mul_i_2 339413
Flm_Flc_mul_i_SMALL 83590050
Flm_Flc_mul_pre 6790
Flm_Flc_mul_pre_Flx 7670064
Flm_add 29322
Flm_center 11347
Flm_mul 14553628
Flm_mul_classical 28642557
Flm_mul_i 28649375
Flm_mul_pre 13944250
Flm_mul_sw 8288
Flm_neg 324904
Flm_powers 840
Flm_powu 51360
Flm_sqr 92727
Flm_sub 26066206
Flm_to_mod 59694
Flm_transpose 735282
Flmrow_Flc_mul_SMALL 770382308
Flmrow_Flc_mul_i 549851711
Flv_Fl_div 4706
Flv_Fl_div_inplace 0
Flv_Fl_mul 1754323
Flv_Fl_mul_inplace 0
Flv_Fl_mul_part_inplace 7910975
Flv_add 1813592
Flv_add_inplace 509558
Flv_center 164710
Flv_dotproduct 730750
Flv_dotproduct_pre 62202
Flv_dotproductspec_SMALL 9602087
Flv_dotproductspec_i 748652
Flv_neg 4102091
Flv_neg_inplace 6405
Flv_sub 237101654
Flv_sub_inplace 0
Flv_sum 3871
Flx_dotproduct 0
Flx_dotproduct_pre 9626519
FpC_FpV_mul 5854
FpC_Fp_mul 972989
FpC_add 283601
FpC_center 7062363
FpC_center_inplace 0
FpC_red 31546241
FpC_sub 965634
FpC_to_mod 105
FpM_FpC_mul 1762460
FpM_FpC_mul_FpX 1234383
FpM_FpC_mul_i 1762460
FpM_Fp_mul 766048
FpM_add 0
FpM_center 2811708
FpM_center_inplace 42
FpM_mul 2062554
FpM_powu 0
FpM_red 5657437
FpM_sub 0
FpM_to_mod 226
FpMrow_FpC_mul_i 18945805
FpMs_FpC_mul 0
FpMs_FpCs_solve 0
FpMs_FpCs_solve_safe 0
FpMs_leftkernel_elt 42
FpMs_leftkernel_elt_col 147
FpMs_structelim_back 147
FpVV_to_mod 574
FpV_FpMs_mul 68991
FpV_add 0
FpV_dotproduct 8684106
FpV_dotsquare 0
FpV_red 420
FpV_sub 0
FpV_to_mod 36278
FpXC_to_mod 84021
FpXC_to_mod_raw 0
FpXM_to_mod 0
FpXQC_to_mod 7
FpX_to_mod 1260826
FpX_to_mod_raw 997269
Fp_center_inplace 168
Fp_to_mod 4005
FqC_to_mod 28
FqC_to_mod_raw 107975
FqM_to_mod 26145
Fq_to_mod_raw 582533
ZMV_to_FlmV 4940
ZM_to_Flm 13773637
ZVV_to_FlvV 14722
ZV_to_Flv 58581443
ZV_zMs_mul 0
ZlM_gauss 0
ZpMs_ZpCs_solve 0
_F3C_center_inplace 7
_Flm_mul 21403
_Flm_one 840
_Flm_sqr 92727
_FpC_center_inplace 42
_FpM_mul 0
_FpM_sqr 0
__Flm_Flc_mul_i 98321572
__Flm_Flc_mul_i_SMALL 86758799
add_slices 33152
add_slices_ip 66304
gen_FpM_Wiedemann 147
gen_ZpM_Dixon_Wiedemann 0
gen_matid 2464
matid_F2xqM 35
matid_Flm 1439912
matid_FlxqM 56
random_Flv 41414
random_FpC 924
random_FpV 147
scalar_Flm 42
subtract_slices 58015
to_intmod 18978083
vecprow 23046
wrap_relcomb 0
wrap_relcomb_modp 0
wrap_relker 68844
zCs_to_ZC 0
zMs_ZC_mul 0
zMs_compress 0
zMs_to_ZM 0
zm_mul 2114
zm_zc_mul 6450565
zmrow_zc_mul 97688616

Generated by: LCOV version 1.16