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 30616-7aa4fb0184) Lines: 737 989 74.5 %
Date: 2026-01-17 09:22:32 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
Fp_to_mod 3845
Flv_sum 3871
Flv_Fl_div 4706
ZMV_to_FlmV 4940
FpC_FpV_mul 5854
Flv_neg_inplace 6398
Flm_Flc_mul_pre 6791
Flm_mul_sw 8288
Flm_center 11347
ZVV_to_FlvV 14722
_Flm_mul 21403
vecprow 23037
FqM_to_mod 26145
Flm_add 29322
add_slices 33152
FpV_to_mod 36278
random_Flv 41402
Flm_Fl_add 51180
Flm_powu 51360
subtract_slices 58016
Flm_to_mod 59694
Flv_dotproduct_pre 62203
add_slices_ip 66304
wrap_relker 68817
FpV_FpMs_mul 68964
Flm_Fl_mul 82642
FpXC_to_mod 84021
Flm_sqr 92727
_Flm_sqr 92727
FqC_to_mod_raw 107975
Flv_center 164710
FpC_add 283601
Flm_neg 324903
Flm_Flc_mul_i_2 339412
Flv_add_inplace 509491
Fl_to_intmod 578850
Fq_to_mod_raw 582533
Flv_dotproduct 730750
Flm_transpose 735346
Flv_dotproductspec_i 748652
FpM_Fp_mul 766101
FpC_sub 965634
FpC_Fp_mul 972984
FpX_to_mod_raw 997269
Flm_Flc_mul 1086723
FpM_FpC_mul_FpX 1234383
FpX_to_mod 1260826
matid_Flm 1439973
Flv_Fl_mul 1754260
FpM_FpC_mul_i 1762462
FpM_FpC_mul 1762463
Flv_add 1813543
FpM_mul 2062597
FpM_center 2811757
Flv_neg 4102086
FpM_red 5657421
zm_zc_mul 6450565
FpC_center 7062462
Flm_Flc_mul_pre_Flx 7666396
Flv_Fl_mul_part_inplace 7910865
Flm_Fl_mul_OK 8647052
FpV_dotproduct 8684140
Flv_dotproductspec_SMALL 9603964
Flx_dotproduct_pre 9628574
ZM_to_Flm 13773776
Flm_mul_pre 13946358
Flm_mul 14553745
Flm_Fl_mul_pre_i 17518671
FpMrow_FpC_mul_i 18946157
to_intmod 18978083
Flm_sub 26069396
Flm_Fl_mul_pre 26083208
Flm_mul_classical 28644523
Flm_mul_i 28651738
FpC_red 31544286
ZV_to_Flv 58582130
Flm_Flc_mul_i_SMALL 83591126
__Flm_Flc_mul_i_SMALL 86753563
Flm_Flc_mul_i 93913455
zmrow_zc_mul 97688616
__Flm_Flc_mul_i 98244217
Flv_sub 236632818
Flmrow_Flc_mul_i 550299206
Flmrow_Flc_mul_SMALL 770326264

Generated by: LCOV version 1.16