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 30483-b6b1f87815) Lines: 737 964 76.5 %
Date: 2025-09-12 09:24:16 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 51190
Flm_Fl_mul 82649
Flm_Fl_mul_OK 8648299
Flm_Fl_mul_inplace 0
Flm_Fl_mul_pre 26095683
Flm_Fl_mul_pre_i 17529903
Flm_Fl_sub 3724
Flm_Flc_mul 1086781
Flm_Flc_mul_i 93880722
Flm_Flc_mul_i_2 339415
Flm_Flc_mul_i_SMALL 83611156
Flm_Flc_mul_pre 6791
Flm_Flc_mul_pre_Flx 7729889
Flm_add 29322
Flm_center 11347
Flm_mul 14556445
Flm_mul_classical 28651440
Flm_mul_i 28658576
Flm_mul_pre 13950451
Flm_mul_sw 8288
Flm_neg 324988
Flm_powers 847
Flm_powu 51360
Flm_sqr 92727
Flm_sub 26078786
Flm_to_mod 59694
Flm_transpose 735463
Flmrow_Flc_mul_SMALL 771357670
Flmrow_Flc_mul_i 549320730
Flv_Fl_div 4706
Flv_Fl_div_inplace 0
Flv_Fl_mul 1754392
Flv_Fl_mul_inplace 0
Flv_Fl_mul_part_inplace 7910459
Flv_add 1812502
Flv_add_inplace 509556
Flv_center 164710
Flv_dotproduct 730736
Flv_dotproduct_pre 66256
Flv_dotproductspec_SMALL 9623587
Flv_dotproductspec_i 741860
Flv_neg 4102730
Flv_neg_inplace 6578
Flv_sub 236784770
Flv_sub_inplace 0
Flv_sum 3871
Flx_dotproduct 0
Flx_dotproduct_pre 9637603
FpC_FpV_mul 5875
FpC_Fp_mul 973026
FpC_add 283601
FpC_center 7062154
FpC_center_inplace 0
FpC_red 31527084
FpC_sub 965634
FpC_to_mod 105
FpM_FpC_mul 1762550
FpM_FpC_mul_FpX 1234390
FpM_FpC_mul_i 1762547
FpM_Fp_mul 766439
FpM_add 0
FpM_center 2809905
FpM_center_inplace 42
FpM_mul 2062889
FpM_powu 0
FpM_red 5655506
FpM_sub 0
FpM_to_mod 226
FpMrow_FpC_mul_i 18946834
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 68994
FpV_add 0
FpV_dotproduct 8684236
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 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 13779032
ZVV_to_FlvV 14722
ZV_to_Flv 58662672
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 98244340
__Flm_Flc_mul_i_SMALL 86835071
add_slices 33152
add_slices_ip 66304
gen_FpM_Wiedemann 147
gen_ZpM_Dixon_Wiedemann 0
gen_matid 2464
matid_F2xqM 35
matid_Flm 1440857
matid_FlxqM 56
random_Flv 41416
random_FpC 924
random_FpV 147
scalar_Flm 42
subtract_slices 58014
to_intmod 18978300
vecprow 23047
wrap_relcomb 0
wrap_relcomb_modp 0
wrap_relker 68847
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