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 30764-6b81f1f3fa) Lines: 2553 2925 87.3 %
Date: 2026-03-23 09:27:26 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 450283
Fl2_inv_pre 197485
Fl2_mul_pre 17093834
Fl2_norm_pre 97118617
Fl2_pow_pre 672197
Fl2_sqr_pre 4913903
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76065
Fl_Flxq_log 35571
Fl_Xp1_powu 0
Fl_to_Flx 21966170
Flm_to_FlxV 2772
FlvV_polint_tree 2587870
Flv_Flm_polint 104562
Flv_inv 1744739
Flv_invVandermonde 153445
Flv_inv_i 1756754
Flv_inv_indir 52214
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 21142830
Flv_inv_pre_inplace 19397417
Flv_polint 1485455
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745939
Flv_roots_to_pol 842148
Flv_to_Flx 25493211
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 325151
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 295209
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 171869
FlxV_to_Flm_lg 12972089
FlxV_to_FlxX 397987
FlxV_to_ZXV 609501
FlxV_to_ZXV_inplace 3032582
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9845131
Flx_Fl_mul 7327880
Flx_Fl_mul_pre 18100256
Flx_Fl_mul_to_monic 11859891
Flx_Fl_sub 151687
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786244
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13170993
Flx_Flxq_eval 791497
Flx_Flxq_eval_pre 2444918
Flx_Frobenius 86619
Flx_Frobenius_pre 13819759
Flx_Laplace 27488
Flx_Newton 54392
Flx_add 66011533
Flx_addmulmul 358981
Flx_addshift 3704783
Flx_addspec 7210978
Flx_blocks 527897
Flx_blocks_Flm 12971738
Flx_composedprod 0
Flx_composedsum 27701
Flx_convol 0
Flx_deflate 421319
Flx_deriv 23016602
Flx_diff1 660514
Flx_digits 0
Flx_div_by_X_x 36600148
Flx_divrem 30453355
Flx_divrem_Barrett 604855
Flx_divrem_Barrettspec 906417
Flx_divrem_basecase 61236952
Flx_divrem_pre 78684791
Flx_double 2299328
Flx_equal 26742638
Flx_eval 20447359
Flx_eval2BILspec 603311
Flx_eval_powers_pre 48598390
Flx_eval_pre 136204618
Flx_extgcd 857096
Flx_extgcd_basecase 6182964
Flx_extgcd_halfgcd 126071
Flx_extgcd_pre 6182974
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109537
Flx_gcd 35046197
Flx_gcd_basecase 85847948
Flx_gcd_pre 87508482
Flx_get_red 14511024
Flx_get_red_pre 96894333
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1087632
Flx_halfgcd_all_pre 1087635
Flx_halfgcd_pre 873269
Flx_halfres_basecase 1094710
Flx_halfres_i 1114676
Flx_halfres_pre 1044
Flx_halfres_split 19963
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160376
Flx_integ 0
Flx_integXn 423357
Flx_invBarrett 0
Flx_invBarrett_Newton 23160
Flx_invBarrett_basecase 134387
Flx_invBarrett_pre 158846
Flx_invLaplace 54664
Flx_is_l_pow 8127
Flx_is_smooth 74256
Flx_is_smooth_pre 118060
Flx_is_smooth_squarefree 126234
Flx_is_squarefree 9200704
Flx_lgrenormalizespec 2134994
Flx_matFrobenius 0
Flx_matFrobenius_pre 86557
Flx_mod_Xn1 31529
Flx_mod_Xnm1 4907647
Flx_mul 26707902
Flx_mul_pre 376984298
Flx_mulhigh_i 950422
Flx_mullimb 1186903936
Flx_mullimb_ok 3346239908
Flx_mulspec 382565139
Flx_mulspec_Kronecker 7334532
Flx_mulspec_basecase 344935767
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10147
Flx_mulspec_mulii_inflate 294054
Flx_mulspec_quartmulii 97162
Flx_neg 3264780
Flx_neg_inplace 1767867
Flx_negspec 3264778
Flx_normalize 64881983
Flx_powu 0
Flx_powu_pre 3930
Flx_recip 0
Flx_recipspec 7290350
Flx_red 1882335
Flx_rem 42229060
Flx_rem_basecase 798477193
Flx_rem_pre 922481162
Flx_renormalize 2143594426
Flx_rescale 1117
Flx_resultant 4740441
Flx_resultant_basecase_pre 14606634
Flx_resultant_pre 14608418
Flx_shift 27406390
Flx_shiftip 629398932
Flx_splitting 147440
Flx_sqr 370263
Flx_sqr_pre 276000701
Flx_sqrspec 276113659
Flx_sqrspec_Kronecker 677003
Flx_sqrspec_basecase 275314961
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2069
Flx_sqrspec_sqri_inflate 11814
Flx_sub 137103530
Flx_subspec 898833
Flx_to_Flv 66657908
Flx_to_FlxX 71405
Flx_to_ZX 38315461
Flx_to_ZX_inplace 36552442
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204541
Flx_translate1 663174
Flx_translate1_basecase 675280
Flx_triple 984021
Flx_unscale 0
Flx_val 4472846
Flx_valrem 28524627
Flxn_div 56649
Flxn_div_pre 56658
Flxn_exp 0
Flxn_expint 109539
Flxn_inv 1037
Flxn_mul 75987
Flxn_mul_pre 5185161
Flxn_mulhigh 527844
Flxn_recip 218144
Flxn_red 6370063
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 113589
FlxqX_dotproduct 1918
Flxq_autpow 7
Flxq_autpow_msqr 20696
Flxq_autpow_pre 69415
Flxq_autpow_sqr 47243
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112087
Flxq_autsum_pre 98572
Flxq_autsum_sqr 104886
Flxq_auttrace 0
Flxq_auttrace_mul 779507
Flxq_auttrace_pre 960228
Flxq_auttrace_sqr 652254
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237947
Flxq_div_pre 2313081
Flxq_easylog 519435
Flxq_inv 335768
Flxq_inv_pre 4182799
Flxq_invsafe 670453
Flxq_invsafe_pre 5325890
Flxq_is2npower 0
Flxq_issquare 404606
Flxq_log 164209
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_lroot_fast_pre 113589
Flxq_lroot_pre 25053
Flxq_matrix_pow 399
Flxq_matrix_pow_pre 170650
Flxq_minpoly 45937
Flxq_minpoly_pre 809805
Flxq_mul 13194208
Flxq_mul_pre 187517806
Flxq_norm 443241
Flxq_order 97322
Flxq_pow 932959
Flxq_pow_Frobenius 22140900
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23189217
Flxq_pow_table 0
Flxq_pow_table_pre 4392
Flxq_powers 232135
Flxq_powers_pre 22448218
Flxq_powu 488365
Flxq_powu_pre 24186342
Flxq_sqr 2763424
Flxq_sqr_pre 274959004
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
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 4724
Flxq_transmul 4212629
Flxq_transmul_init 1746508
RgXV_to_FlxV 7
RgX_to_Flx 2208849
Rg_to_F2 1715139
Rg_to_Fl 73079352
Rg_to_Flxq 3589463
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3798336
ZXV_to_FlxV 0
ZX_to_Flx 171082401
Z_mod2BIL_Flx 305868
Z_mod2BIL_Flx_2 308798
Z_mod2BIL_Flx_3 0
Z_to_Flx 7593923
ZpX_invLaplace_init 497
_Fl2_mul 1925466
_Fl2_pow 672189
_Fl2_rand 113882
_Fl2_sqr 4913897
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11794104
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 146535935
_Flxq_neg 366572
_Flxq_one 22450014
_Flxq_pow 22133493
_Flxq_powu 68
_Flxq_powu_i 22933550
_Flxq_rand 6579
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 267323437
bounded_order 394024
gener_Flxq 7201
get_Fl_threshold 2319941369
get_Flx_red 985450535
get_Flxq_field 68902
get_Flxq_star 283432
init_invlaplace 12514
int_to_Flx 12216
int_to_Flx_half 507058
int_to_Flx_quart 107384
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 20939096
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 5624136
kron_unpack_Flx_bits_wide 5669292
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8445084
mkF2 27672177
monomial_Flx 941362
random_Flx 2646341
set_Flxq 68922
set_Flxq_pre 69128781
translate_basecase 688452
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6404367

Generated by: LCOV version 1.16