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 30773-2078653b96) Lines: 2553 2925 87.3 %
Date: 2026-03-30 09:27:24 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449952
Fl2_inv_pre 197304
Fl2_mul_pre 17095224
Fl2_norm_pre 97118633
Fl2_pow_pre 671825
Fl2_sqr_pre 4919278
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76156
Fl_Flxq_log 35566
Fl_Xp1_powu 0
Fl_to_Flx 21943639
Flm_to_FlxV 2772
FlvV_polint_tree 2587842
Flv_Flm_polint 104561
Flv_inv 1744764
Flv_invVandermonde 153445
Flv_inv_i 1756774
Flv_inv_indir 52212
Flv_inv_inplace 12017
Flv_inv_pre 9646
Flv_inv_pre_indir 21050359
Flv_inv_pre_inplace 19309732
Flv_polint 1485476
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745966
Flv_roots_to_pol 842169
Flv_to_Flx 25491172
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 294131
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28982
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171870
FlxV_to_Flm_lg 12971218
FlxV_to_FlxX 397987
FlxV_to_ZXV 609498
FlxV_to_ZXV_inplace 3032535
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9842131
Flx_Fl_mul 9422720
Flx_Fl_mul_pre 20197104
Flx_Fl_mul_to_monic 11859307
Flx_Fl_sub 151687
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786261
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13170125
Flx_Flxq_eval 791457
Flx_Flxq_eval_pre 2444917
Flx_Frobenius 86617
Flx_Frobenius_pre 13818866
Flx_Laplace 27481
Flx_Newton 54396
Flx_add 73781830
Flx_addmulmul 358985
Flx_addshift 3768149
Flx_addspec 7337710
Flx_blocks 527519
Flx_blocks_Flm 12970540
Flx_composedprod 0
Flx_composedsum 27700
Flx_convol 0
Flx_deflate 421329
Flx_deriv 23015338
Flx_diff1 660638
Flx_digits 0
Flx_div_by_X_x 36570836
Flx_divrem 30453174
Flx_divrem_Barrett 604576
Flx_divrem_Barrettspec 906236
Flx_divrem_basecase 61239874
Flx_divrem_pre 78681449
Flx_double 1179459
Flx_equal 26090643
Flx_eval 20415914
Flx_eval2BILspec 603293
Flx_eval_powers_pre 48596528
Flx_eval_pre 136175301
Flx_extgcd 857096
Flx_extgcd_basecase 6183996
Flx_extgcd_halfgcd 126067
Flx_extgcd_pre 6184008
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109538
Flx_gcd 35030530
Flx_gcd_basecase 85807046
Flx_gcd_pre 87469509
Flx_get_red 14508894
Flx_get_red_pre 97008665
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1087766
Flx_halfgcd_all_pre 1087769
Flx_halfgcd_pre 873164
Flx_halfres_basecase 1094845
Flx_halfres_i 1114811
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160315
Flx_integ 0
Flx_integXn 423277
Flx_invBarrett 0
Flx_invBarrett_Newton 23161
Flx_invBarrett_basecase 134385
Flx_invBarrett_pre 158847
Flx_invLaplace 54651
Flx_is_l_pow 8163
Flx_is_smooth 74256
Flx_is_smooth_pre 118417
Flx_is_smooth_squarefree 126542
Flx_is_squarefree 9201029
Flx_lgrenormalizespec 2134260
Flx_matFrobenius 0
Flx_matFrobenius_pre 86556
Flx_mod_Xn1 31527
Flx_mod_Xnm1 4906828
Flx_mul 26711068
Flx_mul_pre 380395298
Flx_mulhigh_i 949586
Flx_mullimb 1185855579
Flx_mullimb_ok 3344232798
Flx_mulspec 386015327
Flx_mulspec_Kronecker 7368486
Flx_mulspec_basecase 346077922
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10140
Flx_mulspec_mulii_inflate 294045
Flx_mulspec_quartmulii 97160
Flx_neg 4175444
Flx_neg_inplace 1799550
Flx_negspec 4175463
Flx_normalize 64810681
Flx_powu 0
Flx_powu_pre 3914
Flx_recip 0
Flx_recipspec 7288970
Flx_red 1881281
Flx_rem 42220390
Flx_rem_basecase 797870815
Flx_rem_pre 923902517
Flx_renormalize 2163698899
Flx_rescale 1117
Flx_resultant 4740258
Flx_resultant_basecase_pre 14606985
Flx_resultant_pre 14608913
Flx_shift 27401842
Flx_shiftip 629031717
Flx_splitting 147324
Flx_sqr 370243
Flx_sqr_pre 274429272
Flx_sqrspec 274582712
Flx_sqrspec_Kronecker 670285
Flx_sqrspec_basecase 273888347
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2070
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136568236
Flx_subspec 898582
Flx_to_Flv 66651504
Flx_to_FlxX 71405
Flx_to_ZX 38377763
Flx_to_ZX_inplace 36546977
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204535
Flx_translate1 663301
Flx_translate1_basecase 675396
Flx_triple 551294
Flx_unscale 0
Flx_val 4473972
Flx_valrem 28458300
Flxn_div 56584
Flxn_div_pre 56618
Flxn_exp 0
Flxn_expint 109544
Flxn_inv 1037
Flxn_mul 75978
Flxn_mul_pre 5182481
Flxn_mulhigh 527454
Flxn_recip 218033
Flxn_red 6365411
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 20698
Flxq_autpow_pre 69422
Flxq_autpow_sqr 47254
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112105
Flxq_autsum_pre 98578
Flxq_autsum_sqr 104900
Flxq_auttrace 0
Flxq_auttrace_mul 779467
Flxq_auttrace_pre 960141
Flxq_auttrace_sqr 652242
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 1167600
Flxq_div_pre 2313669
Flxq_easylog 519452
Flxq_inv 335789
Flxq_inv_pre 4183786
Flxq_invsafe 670528
Flxq_invsafe_pre 5326918
Flxq_is2npower 0
Flxq_issquare 404606
Flxq_log 164210
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_lroot_fast_pre 113589
Flxq_lroot_pre 25053
Flxq_matrix_pow 399
Flxq_matrix_pow_pre 170646
Flxq_minpoly 45937
Flxq_minpoly_pre 809724
Flxq_mul 18080018
Flxq_mul_pre 191135016
Flxq_norm 443250
Flxq_order 97322
Flxq_pow 932862
Flxq_pow_Frobenius 22279891
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23328151
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232130
Flxq_powers_pre 22444492
Flxq_powu 488361
Flxq_powu_pre 24180520
Flxq_sqr 2763475
Flxq_sqr_pre 273399519
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_sqrtl_spec_pre 37667
Flxq_sqrtn 23095
Flxq_sqrtn_spec_pre 21901
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210695
Flxq_sumautsum_sqr 295218
Flxq_trace 4724
Flxq_transmul 4212261
Flxq_transmul_init 1746305
RgXV_to_FlxV 7
RgX_to_Flx 2209606
Rg_to_F2 1715115
Rg_to_Fl 73086996
Rg_to_Flxq 3461454
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3797845
ZXV_to_FlxV 0
ZX_to_Flx 171060328
Z_mod2BIL_Flx 305859
Z_mod2BIL_Flx_2 308789
Z_mod2BIL_Flx_3 0
Z_to_Flx 7593927
ZpX_invLaplace_init 497
_Fl2_mul 1926847
_Fl2_pow 671816
_Fl2_rand 114007
_Fl2_sqr 4919251
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11770803
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 146674957
_Flxq_neg 366572
_Flxq_one 22443376
_Flxq_pow 22272478
_Flxq_powu 68
_Flxq_powu_i 22927105
_Flxq_rand 6584
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 267064180
bounded_order 394036
gener_Flxq 7201
get_Fl_threshold 2317043135
get_Flx_red 986940896
get_Flxq_field 68902
get_Flxq_star 283433
init_invlaplace 12514
int_to_Flx 12214
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 21000694
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 5623308
kron_unpack_Flx_bits_wide 5699184
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8473627
mkF2 27679410
monomial_Flx 941250
random_Flx 2646198
set_Flxq 68922
set_Flxq_pre 69253788
translate_basecase 688566
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6406053

Generated by: LCOV version 1.16