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 30744-52374ab6cf) Lines: 737 989 74.5 %
Date: 2026-03-17 09:26:37 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 4792
ZMV_to_FlmV 4940
FpC_FpV_mul 5854
Flv_neg_inplace 6413
Flm_Flc_mul_pre 6791
Flm_mul_sw 8288
Flm_center 11347
ZVV_to_FlvV 14722
_Flm_mul 21403
vecprow 23044
FqM_to_mod 26145
Flm_add 29322
add_slices 33152
FpV_to_mod 36397
random_Flv 41422
Flm_Fl_add 51170
Flm_powu 51360
subtract_slices 58016
Flm_to_mod 59694
Flv_dotproduct_pre 62204
add_slices_ip 66304
wrap_relker 68838
FpV_FpMs_mul 68985
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 324997
Flm_Flc_mul_i_2 339431
Flv_add_inplace 509474
Fl_to_intmod 578850
Fq_to_mod_raw 582533
Flv_dotproduct 730750
Flm_transpose 735553
Flv_dotproductspec_i 748652
FpM_Fp_mul 766336
FpC_sub 965634
FpC_Fp_mul 973039
FpX_to_mod_raw 997283
Flm_Flc_mul 1086747
FpM_FpC_mul_FpX 1234383
FpX_to_mod 1260581
matid_Flm 1440356
Flv_Fl_mul 1754416
FpM_FpC_mul_i 1762443
FpM_FpC_mul 1762444
FpM_mul 2062764
FpM_center 2812587
Flv_neg 4103173
FpM_red 5709206
zm_zc_mul 6450565
FpC_center 7064652
Flm_Flc_mul_pre_Flx 7673459
Flv_Fl_mul_part_inplace 7911537
Flm_Fl_mul_OK 8651103
FpV_dotproduct 8684139
Flv_dotproductspec_SMALL 9602069
Flx_dotproduct_pre 9626545
ZM_to_Flm 13853787
Flm_mul_pre 13954643
Flm_mul 14559142
Flm_Fl_mul_pre_i 17529806
FpMrow_FpC_mul_i 18946380
to_intmod 18958420
Flm_sub 26082934
Flm_Fl_mul_pre 26096614
Flm_mul_classical 28657136
Flm_mul_i 28664579
FpC_red 31753081
ZV_to_Flv 58891329
Flm_Flc_mul_i_SMALL 83607909
__Flm_Flc_mul_i_SMALL 86777667
Flm_Flc_mul_i 94145953
zmrow_zc_mul 97688616
__Flm_Flc_mul_i 98532112
Flv_sub 237255365
Flmrow_Flc_mul_i 551474021
Flv_add 569672341
Flmrow_Flc_mul_SMALL 770562586

Generated by: LCOV version 1.16