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 - Flx.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30733-eb2d773d38) Lines: 2553 2925 87.3 %
Date: 2026-03-03 09:24:12 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 450467
Fl2_inv_pre 197582
Fl2_mul_pre 1955628
Fl2_norm_pre 127620
Fl2_pow_pre 672521
Fl2_sqr_pre 4917505
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76110
Fl_Flxq_log 35558
Fl_Xp1_powu 0
Fl_to_Flx 21964997
Flm_to_FlxV 2772
FlvV_polint_tree 2587838
Flv_Flm_polint 104562
Flv_inv 1744686
Flv_invVandermonde 153445
Flv_inv_i 1756698
Flv_inv_indir 52214
Flv_inv_inplace 12017
Flv_inv_pre 9644
Flv_inv_pre_indir 21171587
Flv_inv_pre_inplace 19442036
Flv_polint 1485404
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745887
Flv_roots_to_pol 842255
Flv_to_Flx 25492979
FlxC_Fl_translate 0
FlxC_FlxqV_eval 0
FlxC_FlxqV_eval_pre 0
FlxC_Flxq_eval 0
FlxC_Flxq_eval_pre 0
FlxC_eval_powers_pre 325158
FlxC_neg 0
FlxC_sub 0
FlxC_to_ZXC 104060
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_Flx_mul2 26000
FlxM_eval_powers_pre 22302
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_mul2 7099
FlxM_mul_Kronecker_i 81591
FlxM_neg 0
FlxM_pack_ZM 46835
FlxM_pack_ZM_bits 116259
FlxM_sub 0
FlxM_to_FlxXV 0
FlxM_to_ZXM 2485
FlxT_red 295151
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28977
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171857
FlxV_to_Flm_lg 12971819
FlxV_to_FlxX 397987
FlxV_to_ZXV 606004
FlxV_to_ZXV_inplace 3031976
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9846222
Flx_Fl_mul 7317390
Flx_Fl_mul_pre 18067394
Flx_Fl_mul_to_monic 11854534
Flx_Fl_sub 151692
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786189
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13170803
Flx_Flxq_eval 791153
Flx_Flxq_eval_pre 2444273
Flx_Frobenius 86619
Flx_Frobenius_pre 13818700
Flx_Laplace 27493
Flx_Newton 54393
Flx_add 66010822
Flx_addmulmul 358982
Flx_addshift 3704685
Flx_addspec 7210782
Flx_blocks 528075
Flx_blocks_Flm 12971262
Flx_composedprod 0
Flx_composedsum 27699
Flx_convol 0
Flx_deflate 421242
Flx_deriv 22987559
Flx_diff1 14448
Flx_digits 0
Flx_div_by_X_x 36627597
Flx_divrem 30198274
Flx_divrem_Barrett 604857
Flx_divrem_Barrettspec 906673
Flx_divrem_basecase 61166016
Flx_divrem_pre 78354321
Flx_double 2299328
Flx_equal 26866910
Flx_eval 20437563
Flx_eval2BILspec 603321
Flx_eval_powers_pre 48688620
Flx_eval_pre 136188569
Flx_extgcd 856983
Flx_extgcd_basecase 6166447
Flx_extgcd_halfgcd 126067
Flx_extgcd_pre 6166444
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109548
Flx_gcd 35028388
Flx_gcd_basecase 85823287
Flx_gcd_pre 87484754
Flx_get_red 14509144
Flx_get_red_pre 97060254
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1088096
Flx_halfgcd_all_pre 1088096
Flx_halfgcd_pre 872980
Flx_halfres_basecase 1095173
Flx_halfres_i 1115141
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160688
Flx_integ 0
Flx_integXn 423394
Flx_invBarrett 0
Flx_invBarrett_Newton 23161
Flx_invBarrett_basecase 134386
Flx_invBarrett_pre 158848
Flx_invLaplace 54658
Flx_is_l_pow 8215
Flx_is_smooth 74256
Flx_is_smooth_pre 119308
Flx_is_smooth_squarefree 127515
Flx_is_squarefree 9181793
Flx_lgrenormalizespec 2135225
Flx_matFrobenius 0
Flx_matFrobenius_pre 86553
Flx_mod_Xn1 31529
Flx_mod_Xnm1 4907381
Flx_mul 26565394
Flx_mul_pre 377058174
Flx_mulhigh_i 950642
Flx_mullimb 1186238939
Flx_mullimb_ok 3353351203
Flx_mulspec 382609898
Flx_mulspec_Kronecker 7333987
Flx_mulspec_basecase 344900545
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10147
Flx_mulspec_mulii_inflate 294059
Flx_mulspec_quartmulii 97167
Flx_neg 3263393
Flx_neg_inplace 1767818
Flx_negspec 3263379
Flx_normalize 64863138
Flx_powu 0
Flx_powu_pre 3932
Flx_recip 0
Flx_recipspec 7289071
Flx_red 1882271
Flx_rem 42224979
Flx_rem_basecase 798469139
Flx_rem_pre 922510993
Flx_renormalize 2140431787
Flx_rescale 1117
Flx_resultant 4732486
Flx_resultant_basecase_pre 14598251
Flx_resultant_pre 14600370
Flx_shift 27406237
Flx_shiftip 629937283
Flx_splitting 147017
Flx_sqr 354474
Flx_sqr_pre 276247031
Flx_sqrspec 276403595
Flx_sqrspec_Kronecker 676949
Flx_sqrspec_basecase 275617376
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2067
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136330442
Flx_subspec 899063
Flx_to_Flv 66658178
Flx_to_FlxX 71405
Flx_to_ZX 38070179
Flx_to_ZX_inplace 36273515
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204552
Flx_translate1 17108
Flx_translate1_basecase 29202
Flx_triple 983881
Flx_unscale 0
Flx_val 4480827
Flx_valrem 28511834
Flxn_div 56634
Flxn_div_pre 56652
Flxn_exp 0
Flxn_expint 109546
Flxn_inv 1037
Flxn_mul 75984
Flxn_mul_pre 5186378
Flxn_mulhigh 528016
Flxn_recip 218151
Flxn_red 6372104
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqC_red_pre 234855
FlxqM_Flxq_mul 0
FlxqM_mul_Kronecker 81591
FlxqM_red_pre 81591
FlxqV_dotproduct 0
FlxqV_dotproduct_pre 113169
FlxqX_dotproduct 1918
Flxq_autpow 7
Flxq_autpow_msqr 20696
Flxq_autpow_pre 69348
Flxq_autpow_sqr 47106
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112090
Flxq_autsum_pre 98575
Flxq_autsum_sqr 104889
Flxq_auttrace 0
Flxq_auttrace_mul 779945
Flxq_auttrace_pre 960092
Flxq_auttrace_sqr 652659
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237513
Flxq_div_pre 2312647
Flxq_easylog 519428
Flxq_inv 320037
Flxq_inv_pre 4166339
Flxq_invsafe 670543
Flxq_invsafe_pre 5309478
Flxq_is2npower 0
Flxq_issquare 404459
Flxq_log 164210
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_lroot_fast_pre 113169
Flxq_lroot_pre 24983
Flxq_matrix_pow 399
Flxq_matrix_pow_pre 170634
Flxq_minpoly 45867
Flxq_minpoly_pre 809577
Flxq_mul 13190894
Flxq_mul_pre 187850906
Flxq_norm 443040
Flxq_order 97322
Flxq_pow 932762
Flxq_pow_Frobenius 22312756
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23360838
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 231176
Flxq_powers_pre 22444471
Flxq_powu 488158
Flxq_powu_pre 24189360
Flxq_sqr 2762175
Flxq_sqr_pre 275301330
Flxq_sqrt 230527
Flxq_sqrt_pre 230527
Flxq_sqrtl_spec_pre 37667
Flxq_sqrtn 23094
Flxq_sqrtn_spec_pre 21901
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210695
Flxq_sumautsum_sqr 295218
Flxq_trace 4696
Flxq_transmul 4211972
Flxq_transmul_init 1745948
RgXV_to_FlxV 7
RgX_to_Flx 2193535
Rg_to_F2 1710393
Rg_to_Fl 72887876
Rg_to_Flxq 3587090
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3764529
ZXV_to_FlxV 0
ZX_to_Flx 169964425
Z_mod2BIL_Flx 305873
Z_mod2BIL_Flx_2 308803
Z_mod2BIL_Flx_3 0
Z_to_Flx 7576382
ZpX_invLaplace_init 497
_Fl2_mul 1926571
_Fl2_pow 672512
_Fl2_rand 113891
_Fl2_sqr 4917506
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11795934
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 146870656
_Flxq_neg 366572
_Flxq_one 22445662
_Flxq_pow 22305347
_Flxq_powu 68
_Flxq_powu_i 22936509
_Flxq_rand 6571
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 267621485
bounded_order 394022
gener_Flxq 7201
get_Fl_threshold 2319967763
get_Flx_red 985421928
get_Flxq_field 68902
get_Flxq_star 283432
init_invlaplace 12514
int_to_Flx 12216
int_to_Flx_half 507058
int_to_Flx_quart 107385
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 20938285
kron_pack_Flx_spec_half 688104
kron_unpack_Flx 42785
kron_unpack_Flx_2 2930
kron_unpack_Flx_3 0
kron_unpack_Flx_bits_narrow 5624241
kron_unpack_Flx_bits_wide 5669388
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8445012
mkF2 7333738
monomial_Flx 941071
random_Flx 2645687
set_Flxq 68922
set_Flxq_pre 69296463
translate_basecase 42367
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6423825

Generated by: LCOV version 1.16