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 30608-ad1edb9ceb) Lines: 2553 2925 87.3 %
Date: 2026-01-13 09:22:00 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl_Xp1_powu 0
Flv_prod 0
FlxC_Fl_translate 0
FlxC_FlxqV_eval 0
FlxC_FlxqV_eval_pre 0
FlxC_Flxq_eval 0
FlxC_Flxq_eval_pre 0
FlxC_neg 0
FlxC_sub 0
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_neg 0
FlxM_sub 0
FlxM_to_FlxXV 0
FlxV_Flx_fromdigits 0
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_composedprod 0
Flx_convol 0
Flx_digits 0
Flx_halfgcd 0
Flx_integ 0
Flx_invBarrett 0
Flx_matFrobenius 0
Flx_powu 0
Flx_recip 0
Flx_unscale 0
Flxn_exp 0
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqM_Flxq_mul 0
FlxqV_dotproduct 0
Flxq_autsum 0
Flxq_auttrace 0
Flxq_is2npower 0
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_pow_init 0
Flxq_pow_table 0
ZXV_to_FlxV 0
Z_mod2BIL_Flx_3 0
_Flx_add 0
_Flx_divrem 0
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
kron_pack_Flx_spec_3 0
kron_unpack_Flx_3 0
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
Flxq_autpow 7
RgXV_to_FlxV 7
matJ2_FlxM 13
Flxq_conjvec 20
Flxq_pow_init_pre 28
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
_Flxq_powu 68
Flx_sqrspec_halfsqri 136
Flx_halfgcd_all 154
Flxq_matrix_pow 399
ZpX_invLaplace_init 497
matid2_FlxM 911
Flxn_inv 1037
Flx_halfres_pre 1044
Flx_rescale 1117
Flxq_autpowers 1667
FlxqX_dotproduct 1918
Flx_sqrspec_sqri 2070
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxM_to_ZXM 2485
Flm_to_FlxV 2772
kron_unpack_Flx_2 2930
kron_pack_Flx_spec_2 3389
Flxq_charpoly 3625
Flv_prod_pre 3719
_Flx_composedsum 3882
Flx_powu_pre 3907
Flxq_pow_table_pre 4393
Flxq_trace 4696
Flx_FlxqV_eval 5082
Flx_mulspec_halfmulii 5463
_Flxq_s 6567
_Flxq_rand 6570
Flx_FlxM_qmul 6927
FlxM_mul2 7099
gener_Flxq 7201
Flx_is_l_pow 8200
Flx_halfres_update_pre 9405
_Flxq_inv 9460
Flv_inv_pre 9646
Flx_mulspec_mulii 10145
Flx_sqrspec_quartsqri 10218
Flx_Fl2_eval_pre 10773
Flx_sqrspec_sqri_inflate 11814
Flv_inv_inplace 12017
zl_Xp1_powu 12017
int_to_Flx 12216
init_invlaplace 12514
Flx_halve 14026
Flx_diff1 14428
Flx_translate1 17087
Flx_halfres_split 19963
Flxq_autpow_msqr 20696
Flxq_sqrtn_spec_pre 21901
FlxM_eval_powers_pre 22302
Flxq_sqrtn 23095
Flx_invBarrett_Newton 23161
ZM_unpack_FlxM 23421
Flxq_lroot_pre 25053
zlx_translate1 25259
FlxM_Flx_mul2 26000
Flx_Laplace 27344
Flx_composedsum 27553
FlxV_composedsum 28960
Flx_translate1_basecase 29179
Flx_mod_Xn1 31509
FlxV_Flc_mul 34482
Fl_Flxq_log 35550
Flxq_sqrtl_spec_pre 37667
Flxq_sumautsum_msqr 40915
translate_basecase 42346
kron_unpack_Flx 42785
Flxq_minpoly 45937
FlxM_pack_ZM 46835
Flxq_autpow_sqr 47313
Flv_inv_indir 52212
kron_pack_Flx_spec 53168
Flx_Newton 54091
Flx_invLaplace 54368
Flxn_div 55161
Flxn_div_pre 55187
ZM_unpack_FlxM_bits 58160
Fl2_sqrt_pre 65849
get_Flxq_field 68902
set_Flxq 68922
_Flxq_equal0 69139
Flxq_autpow_pre 69449
Flx_to_FlxX 71405
Flx_is_smooth 74256
Flxn_mul 75847
Fl2_sqrtn_pre 76097
FlxM_mul_Kronecker_i 81581
FlxqM_mul_Kronecker 81581
FlxqM_red_pre 81581
Flx_matFrobenius_pre 86565
Flx_Frobenius 86619
Flx_mulspec_quartmulii 97179
Flxq_order 97328
Flxq_autsum_pre 98768
FlxC_to_ZXC 104060
Flv_Flm_polint 104561
Flxq_autsum_sqr 105110
int_to_Flx_quart 107397
Flxn_expint 109394
Flx_fromNewton 109400
Flxq_autsum_mul 112472
FlxqV_dotproduct_pre 113589
Flxq_lroot_fast_pre 113589
_Fl2_rand 113936
FlxM_pack_ZM_bits 116239
Flx_is_smooth_pre 118735
Flx_is_smooth_squarefree 126980
Fl2_norm_pre 127625
Flx_invBarrett_basecase 134390
Flx_extgcd_halfgcd 146651
Flx_splitting 147266
Flx_Fl_sub 151683
Flv_invVandermonde 153445
Flx_invBarrett_pre 158852
Flx_inflate 160199
Flxq_log 164210
Flxq_matrix_pow_pre 170666
FlxV_to_Flm 171885
Fl2_inv_pre 197194
Flx_to_int_quartspec 204576
Flxq_sumautsum_pre 210713
Flxn_recip 217318
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_powers 232011
FlxqC_red_pre 234845
Flxq_div 237864
get_Flxq_star 283439
FlxT_red 293610
Flx_mulspec_mulii_inflate 294053
Flxq_sumautsum_sqr 295314
Z_mod2BIL_Flx 305867
Z_mod2BIL_Flx_2 308797
FlxC_eval_powers_pre 325152
Flxq_inv 335770
Flx_sqr 354666
_Flxq_neg 366572
_Flxq_add 389834
bounded_order 395389
FlxV_to_FlxX 397977
Flxq_issquare 404492
Flx_addmulmul 416794
Flx_deflate 420793
Flx_integXn 422749
Flxq_norm 443125
Fl2_equal1 449614
Flx_to_int_halfspec 468590
Flxq_powu 488341
int_to_Flx_half 507058
Flxn_mulhigh 516869
Flx_blocks 516941
Flxq_easylog 519350
Flx_eval2BILspec 603309
Flx_divrem_Barrett 604435
FlxV_to_ZXV 606741
Flxq_auttrace_sqr 652771
Flxq_invsafe 670245
_Fl2_pow 671307
Fl2_pow_pre 671330
kron_pack_Flx_spec_half 688104
Flx_sqrspec_Kronecker 695058
Flxq_auttrace_mul 780110
Flx_Flxq_eval 791314
Flxq_minpoly_pre 809693
Flv_roots_to_pol 842021
Flx_extgcd 856683
Flx_halfgcd_pre 873261
Flx_subspec 898356
Flx_divrem_Barrettspec 906005
Flx_mulhigh_i 938568
monomial_Flx 941331
Flxq_pow 948268
Flxq_auttrace_pre 959894
Flx_triple 1049261
Flx_halfgcd_all_i 1127337
Flx_halfgcd_all_pre 1127343
Flx_halfres_basecase 1134412
Flx_halfres_i 1154379
_Flxq_rmul 1461838
Flv_polint 1485174
_Flxq_red 1550928
Rg_to_F2 1710331
Flv_inv 1744444
Flv_producttree 1745663
Flxq_transmul_init 1746480
Flv_inv_i 1756448
Flx_neg_inplace 1777875
Flx_Flv_multieval_tree 1785956
Flx_red 1879435
_Fl2_mul 1924621
Fl2_mul_pre 1953666
Flx_lgrenormalizespec 2134282
RgX_to_Flx 2249949
Flxq_div_pre 2416819
Flx_double 2443925
Flx_Flxq_eval_pre 2444600
FlvV_polint_tree 2587347
random_Flx 2646041
Flxq_sqr 2763157
FlxV_to_ZXV_inplace 3031554
Flx_neg 3264240
Flx_negspec 3264245
Rg_to_Flxq 3588264
Flx_addshift 3724675
ZXT_to_FlxT 3812872
Flxq_transmul 4212959
Flxq_inv_pre 4286482
Flx_val 4476051
Flx_resultant 4733552
Flx_mod_Xnm1 4907987
_Fl2_sqr 4911309
Fl2_sqr_pre 4911317
Flxn_mul_pre 5158973
Flxq_invsafe_pre 5429282
kron_unpack_Flx_bits_narrow 5657148
kron_unpack_Flx_bits_wide 5670223
Flx_extgcd_pre 6285937
Flx_extgcd_basecase 6285953
Flxn_red 6329166
zx_to_Flx 6397388
Flx_addspec 7250880
Flx_recipspec 7288444
mkF2 7325673
Flx_Fl_mul 7326764
Flx_mulspec_Kronecker 7349389
Z_to_Flx 7556525
maxbitcoeffpol 8478594
Flx_is_squarefree 9180661
Flx_Fl_add 9844924
_Flx_mul 11776239
Flx_Fl_mul_to_monic 11855307
Flx_blocks_Flm 12966754
FlxV_to_Flm_lg 12966904
Flx_FlxqV_eval_pre 13166143
Flxq_mul 13192508
Flx_Frobenius_pre 13812156
Flx_get_red 14502832
Flx_resultant_basecase_pre 14597820
Flx_resultant_pre 14599983
Flx_Fl_mul_pre 18290920
Flv_inv_pre_inplace 19356034
Flx_eval 20434358
kron_pack_Flx_spec_bits 20986661
Flv_inv_pre_indir 21081868
Fl_to_Flx 21937651
Flxq_powers_pre 22435302
_Flxq_one 22435404
_Flxq_pow 22732827
Flxq_pow_Frobenius 22740234
_Flxq_powu_i 22924404
Flx_deriv 22982286
Flxq_pow_pre 23803756
Flxq_powu_pre 24178084
Flv_to_Flx 25485718
Flx_equal 27294810
Flx_shift 27378972
Flx_mul 27813598
Flx_valrem 28452624
Flx_divrem 30447680
Flx_gcd 35016281
Flx_div_by_X_x 36537551
Flx_to_ZX_inplace 36572616
Flx_to_ZX 38297553
Flx_rem 42224123
Flx_eval_powers_pre 48599148
Flx_divrem_basecase 62283568
Flx_normalize 64794871
Flx_add 66103171
Flx_to_Flv 66641725
set_Flxq_pre 69715995
Rg_to_Fl 73208879
Flx_divrem_pre 79724540
Flx_gcd_basecase 85773280
Flx_gcd_pre 87430683
Flx_get_red_pre 97466523
Flx_eval_pre 136177679
Flx_sub 138637780
_Flxq_mul 147547282
ZX_to_Flx 171011694
Flxq_mul_pre 188756113
_Flxq_sqr 267688479
Flxq_sqr_pre 275567897
Flx_sqrspec_basecase 275964731
Flx_sqr_pre 276543423
Flx_sqrspec 276678199
Flx_mulspec_basecase 347829919
Flx_mul_pre 379919709
Flx_mulspec 385519893
Flx_shiftip 632937774
Flx_rem_basecase 799714112
Flx_rem_pre 923766137
get_Flx_red 987800182
Flx_mullimb 1184343031
Flx_renormalize 2153370088
get_Fl_threshold 2328392593
Flx_mullimb_ok 3384070969

Generated by: LCOV version 1.16