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 30617-dd5c93fb0e) Lines: 2553 2925 87.3 %
Date: 2026-01-20 09:21:06 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 450294
Fl2_inv_pre 197484
Fl2_mul_pre 1954595
Fl2_norm_pre 127629
Fl2_pow_pre 672275
Fl2_sqr_pre 4910533
Fl2_sqrt_pre 65849
Fl2_sqrtn_pre 76156
Fl_Flxq_log 35563
Fl_Xp1_powu 0
Fl_to_Flx 21920492
Flm_to_FlxV 2772
FlvV_polint_tree 2586944
Flv_Flm_polint 104558
Flv_inv 1744377
Flv_invVandermonde 153445
Flv_inv_i 1756383
Flv_inv_indir 52206
Flv_inv_inplace 12017
Flv_inv_pre 9643
Flv_inv_pre_indir 20962848
Flv_inv_pre_inplace 19231050
Flv_polint 1485096
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745611
Flv_roots_to_pol 841823
Flv_to_Flx 25484515
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 325155
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 22301
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_mul2 7099
FlxM_mul_Kronecker_i 81581
FlxM_neg 0
FlxM_pack_ZM 46835
FlxM_pack_ZM_bits 116239
FlxM_sub 0
FlxM_to_FlxXV 0
FlxM_to_ZXM 2485
FlxT_red 296176
FlxV_Flc_mul 34481
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28965
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171868
FlxV_to_Flm_lg 12966532
FlxV_to_FlxX 397977
FlxV_to_ZXV 606746
FlxV_to_ZXV_inplace 3031549
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9843726
Flx_Fl_mul 7327107
Flx_Fl_mul_pre 18291192
Flx_Fl_mul_to_monic 11856891
Flx_Fl_sub 151687
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1785893
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13165239
Flx_Flxq_eval 791316
Flx_Flxq_eval_pre 2444556
Flx_Frobenius 86617
Flx_Frobenius_pre 13810724
Flx_Laplace 27355
Flx_Newton 54099
Flx_add 66070226
Flx_addmulmul 416796
Flx_addshift 3724675
Flx_addspec 7250880
Flx_blocks 516822
Flx_blocks_Flm 12965950
Flx_composedprod 0
Flx_composedsum 27550
Flx_convol 0
Flx_deflate 420792
Flx_deriv 22980303
Flx_diff1 14403
Flx_digits 0
Flx_div_by_X_x 36513033
Flx_divrem 30445049
Flx_divrem_Barrett 605141
Flx_divrem_Barrettspec 906684
Flx_divrem_basecase 62268478
Flx_divrem_pre 79706881
Flx_double 2443925
Flx_equal 26625075
Flx_eval 20386898
Flx_eval2BILspec 603309
Flx_eval_powers_pre 48519008
Flx_eval_pre 136064769
Flx_extgcd 856694
Flx_extgcd_basecase 6285266
Flx_extgcd_halfgcd 146648
Flx_extgcd_pre 6285275
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109404
Flx_gcd 35004427
Flx_gcd_basecase 85746131
Flx_gcd_pre 87399547
Flx_get_red 14501286
Flx_get_red_pre 96789996
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1127329
Flx_halfgcd_all_pre 1127337
Flx_halfgcd_pre 873174
Flx_halfres_basecase 1134408
Flx_halfres_i 1154376
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160753
Flx_integ 0
Flx_integXn 422745
Flx_invBarrett 0
Flx_invBarrett_Newton 23161
Flx_invBarrett_basecase 134393
Flx_invBarrett_pre 158854
Flx_invLaplace 54379
Flx_is_l_pow 8184
Flx_is_smooth 74256
Flx_is_smooth_pre 119091
Flx_is_smooth_squarefree 127257
Flx_is_squarefree 9180501
Flx_lgrenormalizespec 2135612
Flx_matFrobenius 0
Flx_matFrobenius_pre 86568
Flx_mod_Xn1 31507
Flx_mod_Xnm1 4907764
Flx_mul 27814646
Flx_mul_pre 378284274
Flx_mulhigh_i 938593
Flx_mullimb 1186142433
Flx_mullimb_ok 3352733019
Flx_mulspec 383848040
Flx_mulspec_Kronecker 7349118
Flx_mulspec_basecase 346369851
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10137
Flx_mulspec_mulii_inflate 294053
Flx_mulspec_quartmulii 97163
Flx_neg 3264621
Flx_neg_inplace 1777875
Flx_negspec 3264618
Flx_normalize 64785588
Flx_powu 0
Flx_powu_pre 3947
Flx_recip 0
Flx_recipspec 7289095
Flx_red 1881746
Flx_rem 42210619
Flx_rem_basecase 796941112
Flx_rem_pre 920825778
Flx_renormalize 2147688048
Flx_rescale 1117
Flx_resultant 4732214
Flx_resultant_basecase_pre 14593318
Flx_resultant_pre 14595952
Flx_shift 27377144
Flx_shiftip 630387824
Flx_splitting 147554
Flx_sqr 354716
Flx_sqr_pre 275159098
Flx_sqrspec 275415560
Flx_sqrspec_Kronecker 695055
Flx_sqrspec_basecase 275563724
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2069
Flx_sqrspec_sqri_inflate 11814
Flx_sub 138614888
Flx_subspec 899073
Flx_to_Flv 66636452
Flx_to_FlxX 71405
Flx_to_ZX 38297545
Flx_to_ZX_inplace 36565535
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204543
Flx_translate1 17065
Flx_translate1_basecase 29155
Flx_triple 1049261
Flx_unscale 0
Flx_val 4468410
Flx_valrem 28445326
Flxn_div 55151
Flxn_div_pre 55177
Flxn_exp 0
Flxn_expint 109400
Flxn_inv 1037
Flxn_mul 75845
Flxn_mul_pre 5158259
Flxn_mulhigh 516723
Flxn_recip 217337
Flxn_red 6329156
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqC_red_pre 234845
FlxqM_Flxq_mul 0
FlxqM_mul_Kronecker 81581
FlxqM_red_pre 81581
FlxqV_dotproduct 0
FlxqV_dotproduct_pre 113589
FlxqX_dotproduct 1918
Flxq_autpow 7
Flxq_autpow_msqr 20696
Flxq_autpow_pre 69448
Flxq_autpow_sqr 47313
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112472
Flxq_autsum_pre 98768
Flxq_autsum_sqr 105110
Flxq_auttrace 0
Flxq_auttrace_mul 780098
Flxq_auttrace_pre 959856
Flxq_auttrace_sqr 652788
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237891
Flxq_div_pre 2416846
Flxq_easylog 519381
Flxq_inv 335770
Flxq_inv_pre 4286517
Flxq_invsafe 669631
Flxq_invsafe_pre 5428619
Flxq_is2npower 0
Flxq_issquare 404492
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 170661
Flxq_minpoly 45937
Flxq_minpoly_pre 809666
Flxq_mul 13192341
Flxq_mul_pre 187278130
Flxq_norm 443145
Flxq_order 97328
Flxq_pow 948290
Flxq_pow_Frobenius 22077090
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23140463
Flxq_pow_table 0
Flxq_pow_table_pre 4391
Flxq_powers 232015
Flxq_powers_pre 22431723
Flxq_powu 488335
Flxq_powu_pre 24177284
Flxq_sqr 2763154
Flxq_sqr_pre 274222783
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_sqrtl_spec_pre 37666
Flxq_sqrtn 23095
Flxq_sqrtn_spec_pre 21901
Flxq_sumautsum_msqr 40915
Flxq_sumautsum_pre 210713
Flxq_sumautsum_sqr 295314
Flxq_trace 4696
Flxq_transmul 4212460
Flxq_transmul_init 1746297
RgXV_to_FlxV 7
RgX_to_Flx 2249943
Rg_to_F2 1710191
Rg_to_Fl 73208514
Rg_to_Flxq 3588194
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58160
ZXT_to_FlxT 3813494
ZXV_to_FlxV 0
ZX_to_Flx 170996573
Z_mod2BIL_Flx 305867
Z_mod2BIL_Flx_2 308797
Z_mod2BIL_Flx_3 0
Z_to_Flx 7556366
ZpX_invLaplace_init 497
_Fl2_mul 1925613
_Fl2_pow 672259
_Fl2_rand 114008
_Fl2_sqr 4910656
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11767581
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 146094294
_Flxq_neg 366572
_Flxq_one 22430613
_Flxq_pow 22069681
_Flxq_powu 68
_Flxq_powu_i 22923228
_Flxq_rand 6574
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 266352236
bounded_order 395397
gener_Flxq 7201
get_Fl_threshold 2318052324
get_Flx_red 984786396
get_Flxq_field 68902
get_Flxq_star 283439
init_invlaplace 12514
int_to_Flx 12215
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 20986667
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 5659247
kron_unpack_Flx_bits_wide 5666504
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8478535
mkF2 7324330
monomial_Flx 941242
random_Flx 2645883
set_Flxq 68922
set_Flxq_pre 69046485
translate_basecase 42322
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6401910

Generated by: LCOV version 1.16