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 30370-b9c4b6d044) Lines: 743 970 76.6 %
Date: 2025-07-05 09:22:59 Functions: 110 138 79.7 %
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 51194
Flm_Fl_mul 82649
Flm_Fl_mul_OK 8647232
Flm_Fl_mul_inplace 0
Flm_Fl_mul_pre 26092681
Flm_Fl_mul_pre_i 17527881
Flm_Fl_sub 3724
Flm_Flc_mul 1086754
Flm_Flc_mul_i 93806151
Flm_Flc_mul_i_2 339427
Flm_Flc_mul_i_SMALL 83235042
Flm_Flc_mul_pre 6791
Flm_Flc_mul_pre_Flx 7810947
Flm_add 29322
Flm_center 11347
Flm_mul 14273377
Flm_mul_classical 28367536
Flm_mul_i 28374486
Flm_mul_pre 13949076
Flm_mul_sw 8288
Flm_neg 324988
Flm_powers 847
Flm_powu 51360
Flm_sqr 92727
Flm_sub 26076614
Flm_to_mod 59694
Flm_transpose 735507
Flmrow_Flc_mul_SMALL 769287476
Flmrow_Flc_mul_i 548585188
Flv_Fl_div 4692
Flv_Fl_div_inplace 0
Flv_Fl_mul 1754383
Flv_Fl_mul_inplace 0
Flv_Fl_mul_part_inplace 7908869
Flv_add 1812477
Flv_add_inplace 509520
Flv_center 164710
Flv_dotproduct 730736
Flv_dotproduct_pre 65924
Flv_dotproductspec_SMALL 9621720
Flv_dotproductspec_i 741854
Flv_neg 4102736
Flv_neg_inplace 6545
Flv_sub 236806670
Flv_sub_inplace 0
Flv_sum 3871
Flx_dotproduct 0
Flx_dotproduct_pre 9636256
FpC_FpV_mul 5875
FpC_Fp_mul 973024
FpC_add 283601
FpC_center 7061844
FpC_center_inplace 0
FpC_red 31217217
FpC_sub 965634
FpC_to_mod 105
FpM_FpC_mul 1762549
FpM_FpC_mul_FpX 1234390
FpM_FpC_mul_i 1762548
FpM_Fp_mul 766401
FpM_add 0
FpM_center 2809804
FpM_center_inplace 42
FpM_mul 1645418
FpM_powu 0
FpM_red 5524533
FpM_sub 0
FpM_to_mod 226
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 68967
FpV_add 0
FpV_dotproduct 8684187
FpV_dotsquare 0
FpV_red 420
FpV_sub 0
FpV_to_mod 36495
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 4007
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 13234192
ZMrow_ZC_mul_i 18945770
ZVV_to_FlvV 14722
ZV_to_Flv 57287225
ZV_zMs_mul 0
ZlM_gauss 0
ZpMs_ZpCs_solve 0
_F3C_center_inplace 7
_Flm_mul 21403
_Flm_one 847
_Flm_sqr 92727
_FpC_center_inplace 42
_FpM_mul 0
_FpM_sqr 0
__Flm_Flc_mul_i 98198834
__Flm_Flc_mul_i_SMALL 86525042
add_slices 33152
add_slices_ip 66303
gen_FpM_Wiedemann 147
gen_ZpM_Dixon_Wiedemann 0
gen_matid 2464
matid_F2xqM 35
matid_Flm 1440803
matid_FlxqM 56
random_Flv 41429
random_FpC 924
random_FpV 147
scalar_Flm 42
subtract_slices 58016
to_intmod 18978300
vecprow 23038
wrap_relcomb 0
wrap_relcomb_modp 0
wrap_relker 68820
zCs_to_ZC 0
zMs_ZC_mul 0
zMs_to_ZM 0
zm_mul 2114
zm_zc_mul 6450565
zmrow_zc_mul 97688616

Generated by: LCOV version 1.16