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 30775-9d8a55740a) Lines: 2553 2925 87.3 %
Date: 2026-04-05 09:26:48 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449915
Fl2_inv_pre 197349
Fl2_mul_pre 17093117
Fl2_norm_pre 97118586
Fl2_pow_pre 671797
Fl2_sqr_pre 4912659
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76098
Fl_Flxq_log 35568
Fl_Xp1_powu 0
Fl_to_Flx 21931249
Flm_to_FlxV 2772
FlvV_polint_tree 2587821
Flv_Flm_polint 104558
Flv_inv 1744732
Flv_invVandermonde 153445
Flv_inv_i 1756744
Flv_inv_indir 52215
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 21083075
Flv_inv_pre_inplace 19354089
Flv_polint 1485444
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745927
Flv_roots_to_pol 842104
Flv_to_Flx 25490163
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 325154
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 297681
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28989
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171855
FlxV_to_Flm_lg 12970867
FlxV_to_FlxX 397987
FlxV_to_ZXV 609490
FlxV_to_ZXV_inplace 3032565
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9844166
Flx_Fl_mul 9423256
Flx_Fl_mul_pre 20197356
Flx_Fl_mul_to_monic 11859176
Flx_Fl_sub 151693
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786235
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13169139
Flx_Flxq_eval 791466
Flx_Flxq_eval_pre 2444858
Flx_Frobenius 86614
Flx_Frobenius_pre 13815753
Flx_Laplace 27483
Flx_Newton 54392
Flx_add 73802000
Flx_addmulmul 358987
Flx_addshift 3768149
Flx_addspec 7337710
Flx_blocks 527494
Flx_blocks_Flm 12969538
Flx_composedprod 0
Flx_composedsum 27697
Flx_convol 0
Flx_deflate 421317
Flx_deriv 23013625
Flx_diff1 660659
Flx_digits 0
Flx_div_by_X_x 36561488
Flx_divrem 30442571
Flx_divrem_Barrett 605567
Flx_divrem_Barrettspec 906834
Flx_divrem_basecase 61230546
Flx_divrem_pre 78657350
Flx_double 1179459
Flx_equal 27122706
Flx_eval 20423801
Flx_eval2BILspec 603317
Flx_eval_powers_pre 48613156
Flx_eval_pre 136160484
Flx_extgcd 857076
Flx_extgcd_basecase 6183950
Flx_extgcd_halfgcd 126071
Flx_extgcd_pre 6183952
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109545
Flx_gcd 35021842
Flx_gcd_basecase 85776571
Flx_gcd_pre 87433694
Flx_get_red 14505943
Flx_get_red_pre 98005482
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1087579
Flx_halfgcd_all_pre 1087577
Flx_halfgcd_pre 873161
Flx_halfres_basecase 1094650
Flx_halfres_i 1114623
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160572
Flx_integ 0
Flx_integXn 423315
Flx_invBarrett 0
Flx_invBarrett_Newton 23161
Flx_invBarrett_basecase 134388
Flx_invBarrett_pre 158849
Flx_invLaplace 54647
Flx_is_l_pow 8130
Flx_is_smooth 74256
Flx_is_smooth_pre 118107
Flx_is_smooth_squarefree 126222
Flx_is_squarefree 9200881
Flx_lgrenormalizespec 2136082
Flx_matFrobenius 0
Flx_matFrobenius_pre 86555
Flx_mod_Xn1 31528
Flx_mod_Xnm1 4907931
Flx_mul 26708404
Flx_mul_pre 382191691
Flx_mulhigh_i 949818
Flx_mullimb 1185936975
Flx_mullimb_ok 3376712059
Flx_mulspec 387936173
Flx_mulspec_Kronecker 7370910
Flx_mulspec_basecase 348316498
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10141
Flx_mulspec_mulii_inflate 294057
Flx_mulspec_quartmulii 97163
Flx_neg 4176264
Flx_neg_inplace 1799550
Flx_negspec 4176271
Flx_normalize 64819795
Flx_powu 0
Flx_powu_pre 3972
Flx_recip 0
Flx_recipspec 7289857
Flx_red 1884476
Flx_rem 42220656
Flx_rem_basecase 800433324
Flx_rem_pre 925877804
Flx_renormalize 2168732662
Flx_rescale 1117
Flx_resultant 4740133
Flx_resultant_basecase_pre 14605899
Flx_resultant_pre 14608018
Flx_shift 27401297
Flx_shiftip 631611573
Flx_splitting 147722
Flx_sqr 370309
Flx_sqr_pre 274319070
Flx_sqrspec 274664173
Flx_sqrspec_Kronecker 670327
Flx_sqrspec_basecase 274917381
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2069
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136554628
Flx_subspec 899103
Flx_to_Flv 66646723
Flx_to_FlxX 71405
Flx_to_ZX 38375265
Flx_to_ZX_inplace 36530186
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204547
Flx_translate1 663330
Flx_translate1_basecase 675414
Flx_triple 551294
Flx_unscale 0
Flx_val 4478293
Flx_valrem 28454769
Flxn_div 56594
Flxn_div_pre 56626
Flxn_exp 0
Flxn_expint 109544
Flxn_inv 1037
Flxn_mul 75984
Flxn_mul_pre 5182580
Flxn_mulhigh 527402
Flxn_recip 218036
Flxn_red 6366855
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 69419
Flxq_autpow_sqr 47250
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112087
Flxq_autsum_pre 98572
Flxq_autsum_sqr 104886
Flxq_auttrace 0
Flxq_auttrace_mul 779475
Flxq_auttrace_pre 960094
Flxq_auttrace_sqr 652249
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 1167600
Flxq_div_pre 2313669
Flxq_easylog 519429
Flxq_inv 335792
Flxq_inv_pre 4183760
Flxq_invsafe 670540
Flxq_invsafe_pre 5326897
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 170647
Flxq_minpoly 45937
Flxq_minpoly_pre 809670
Flxq_mul 18079970
Flxq_mul_pre 192949618
Flxq_norm 443243
Flxq_order 97322
Flxq_pow 932854
Flxq_pow_Frobenius 23299131
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 24347363
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232122
Flxq_powers_pre 22440169
Flxq_powu 488367
Flxq_powu_pre 24177663
Flxq_sqr 2763468
Flxq_sqr_pre 273321959
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_sqrtl_spec_pre 37666
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 4212115
Flxq_transmul_init 1746291
RgXV_to_FlxV 7
RgX_to_Flx 2209608
Rg_to_F2 1715191
Rg_to_Fl 73085376
Rg_to_Flxq 3461361
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3798533
ZXV_to_FlxV 0
ZX_to_Flx 171013070
Z_mod2BIL_Flx 305871
Z_mod2BIL_Flx_2 308801
Z_mod2BIL_Flx_3 0
Z_to_Flx 7593671
ZpX_invLaplace_init 497
_Fl2_mul 1924743
_Fl2_pow 671787
_Fl2_rand 113850
_Fl2_sqr 4912676
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11778335
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 148527770
_Flxq_neg 366572
_Flxq_one 22437825
_Flxq_pow 23291724
_Flxq_powu 68
_Flxq_powu_i 22924691
_Flxq_rand 6564
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 267121324
bounded_order 394012
gener_Flxq 7201
get_Fl_threshold 2323893756
get_Flx_red 988850042
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 21005264
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 5626304
kron_unpack_Flx_bits_wide 5697123
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8475802
mkF2 27670002
monomial_Flx 941251
random_Flx 2646089
set_Flxq 68922
set_Flxq_pre 70258467
translate_basecase 688583
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6416532

Generated by: LCOV version 1.16