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 30802-b11b770002) Lines: 737 989 74.5 %
Date: 2026-04-12 09:26:48 Functions: 110 139 79.1 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Flm_Fl_mul_inplace 0
Flv_Fl_div_inplace 0
Flv_Fl_mul_inplace 0
Flv_sub_inplace 0
Flx_dotproduct 0
FpC_center_inplace 0
FpM_add 0
FpM_powu 0
FpM_sub 0
FpMs_FpC_mul 0
FpMs_FpCs_solve 0
FpMs_FpCs_solve_safe 0
FpV_add 0
FpV_dotsquare 0
FpV_sub 0
FpXC_to_mod_raw 0
FpXM_to_mod 0
ZV_zMs_mul 0
ZlM_gauss 0
ZpMs_ZpCs_solve 0
_FpM_mul 0
_FpM_sqr 0
gen_ZpM_Dixon_Wiedemann 0
wrap_relcomb 0
wrap_relcomb_modp 0
zCs_to_ZC 0
zMs_ZC_mul 0
zMs_compress 0
zMs_to_ZM 0
FpXQC_to_mod 7
_F3C_center_inplace 7
Flc_Flv_mul 14
Flc_to_mod 28
FqC_to_mod 28
matid_F2xqM 35
FpM_center_inplace 42
FpMs_leftkernel_elt 42
_FpC_center_inplace 42
scalar_Flm 42
matid_FlxqM 56
FpC_to_mod 105
FpMs_leftkernel_elt_col 147
FpMs_structelim_back 147
gen_FpM_Wiedemann 147
random_FpV 147
Fp_center_inplace 168
FpM_to_mod 226
FpV_red 420
FpVV_to_mod 574
Flm_powers 840
_Flm_one 840
random_FpC 924
zm_mul 2114
gen_matid 2464
Flm_Fl_sub 3710
Flv_sum 3871
Flv_Fl_div 4706
Fp_to_mod 4814
ZMV_to_FlmV 4940
FpC_FpV_mul 5854
Flv_neg_inplace 6411
Flm_Flc_mul_pre 6791
Flm_mul_sw 8288
Flm_center 11347
ZVV_to_FlvV 14722
_Flm_mul 21403
vecprow 23035
FqM_to_mod 26145
Flm_add 29322
add_slices 33152
FpV_to_mod 36404
random_Flv 41416
Flm_Fl_add 51170
Flm_powu 51360
subtract_slices 58016
Flm_to_mod 59694
Flv_dotproduct_pre 62202
add_slices_ip 66303
wrap_relker 68811
FpV_FpMs_mul 68958
Flm_Fl_mul 82642
FpXC_to_mod 84035
Flm_sqr 92727
_Flm_sqr 92727
FqC_to_mod_raw 107975
Flv_center 164710
FpC_add 283601
Flm_neg 324998
Flm_Flc_mul_i_2 339424
Flv_add_inplace 509540
Fl_to_intmod 578850
Fq_to_mod_raw 582533
Flv_dotproduct 730750
Flm_transpose 735531
Flv_dotproductspec_i 748652
FpM_Fp_mul 766297
FpC_sub 965634
FpC_Fp_mul 973037
FpX_to_mod_raw 997283
Flm_Flc_mul 1086747
FpM_FpC_mul_FpX 1234381
FpX_to_mod 1261141
matid_Flm 1440297
Flv_Fl_mul 1754403
FpM_FpC_mul_i 1762421
FpM_FpC_mul 1762422
FpM_mul 2062743
FpM_center 2812550
Flv_neg 4103155
FpM_red 5709139
zm_zc_mul 6450565
FpC_center 7064268
Flm_Flc_mul_pre_Flx 7672013
Flv_Fl_mul_part_inplace 7911486
Flm_Fl_mul_OK 8650464
FpV_dotproduct 8684121
Flv_dotproductspec_SMALL 9600754
Flx_dotproduct_pre 9625101
ZM_to_Flm 13853436
Flm_mul_pre 13953123
Flm_mul 14556888
Flm_Fl_mul_pre_i 17525608
FpMrow_FpC_mul_i 18946063
to_intmod 18961850
Flm_sub 26079701
Flm_Fl_mul_pre 26093390
Flm_mul_classical 28655404
Flm_mul_i 28662148
FpC_red 31792364
ZV_to_Flv 58888933
Flm_Flc_mul_i_SMALL 83606482
__Flm_Flc_mul_i_SMALL 86776080
Flm_Flc_mul_i 94034803
zmrow_zc_mul 97688616
__Flm_Flc_mul_i 98361648
Flv_sub 236928426
Flmrow_Flc_mul_i 550924458
Flv_add 569672340
Flmrow_Flc_mul_SMALL 770530727

Generated by: LCOV version 1.16