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: 2026-03-25 09:26:52 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 450033
Fl2_inv_pre 197412
Fl2_mul_pre 17092373
Fl2_norm_pre 97118583
Fl2_pow_pre 671892
Fl2_sqr_pre 4911018
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76034
Fl_Flxq_log 35572
Fl_Xp1_powu 0
Fl_to_Flx 21957138
Flm_to_FlxV 2772
FlvV_polint_tree 2587618
Flv_Flm_polint 104561
Flv_inv 1744758
Flv_invVandermonde 153445
Flv_inv_i 1756774
Flv_inv_indir 52217
Flv_inv_inplace 12017
Flv_inv_pre 9644
Flv_inv_pre_indir 21171461
Flv_inv_pre_inplace 19439516
Flv_polint 1485479
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745958
Flv_roots_to_pol 842099
Flv_to_Flx 25493635
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 325159
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 293168
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28973
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171867
FlxV_to_Flm_lg 12972368
FlxV_to_FlxX 397987
FlxV_to_ZXV 609489
FlxV_to_ZXV_inplace 3032538
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9844251
Flx_Fl_mul 7327802
Flx_Fl_mul_pre 18101096
Flx_Fl_mul_to_monic 11859384
Flx_Fl_sub 151689
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786260
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13171316
Flx_Flxq_eval 791478
Flx_Flxq_eval_pre 2444928
Flx_Frobenius 86618
Flx_Frobenius_pre 13819875
Flx_Laplace 27493
Flx_Newton 54384
Flx_add 66001453
Flx_addmulmul 358985
Flx_addshift 3704783
Flx_addspec 7210978
Flx_blocks 527937
Flx_blocks_Flm 12971979
Flx_composedprod 0
Flx_composedsum 27694
Flx_convol 0
Flx_deflate 421321
Flx_deriv 23017507
Flx_diff1 660683
Flx_digits 0
Flx_div_by_X_x 36599626
Flx_divrem 30453341
Flx_divrem_Barrett 604294
Flx_divrem_Barrettspec 904100
Flx_divrem_basecase 61241934
Flx_divrem_pre 78685908
Flx_double 2299328
Flx_equal 26818354
Flx_eval 20449346
Flx_eval2BILspec 603309
Flx_eval_powers_pre 48626349
Flx_eval_pre 136210197
Flx_extgcd 857095
Flx_extgcd_basecase 6182983
Flx_extgcd_halfgcd 126067
Flx_extgcd_pre 6182987
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109545
Flx_gcd 35049136
Flx_gcd_basecase 85849864
Flx_gcd_pre 87515048
Flx_get_red 14510898
Flx_get_red_pre 96979207
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1087670
Flx_halfgcd_all_pre 1087671
Flx_halfgcd_pre 873181
Flx_halfres_basecase 1094749
Flx_halfres_i 1114714
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160298
Flx_integ 0
Flx_integXn 423387
Flx_invBarrett 0
Flx_invBarrett_Newton 23161
Flx_invBarrett_basecase 134388
Flx_invBarrett_pre 158849
Flx_invLaplace 54654
Flx_is_l_pow 8182
Flx_is_smooth 74256
Flx_is_smooth_pre 118501
Flx_is_smooth_squarefree 126720
Flx_is_squarefree 9200877
Flx_lgrenormalizespec 2133701
Flx_matFrobenius 0
Flx_matFrobenius_pre 86557
Flx_mod_Xn1 31527
Flx_mod_Xnm1 4906999
Flx_mul 26708514
Flx_mul_pre 377096939
Flx_mulhigh_i 950604
Flx_mullimb 1189652291
Flx_mullimb_ok 3340470111
Flx_mulspec 382692267
Flx_mulspec_Kronecker 7331660
Flx_mulspec_basecase 345058145
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10147
Flx_mulspec_mulii_inflate 294053
Flx_mulspec_quartmulii 97179
Flx_neg 3264209
Flx_neg_inplace 1767867
Flx_negspec 3264197
Flx_normalize 64870921
Flx_powu 0
Flx_powu_pre 3899
Flx_recip 0
Flx_recipspec 7288375
Flx_red 1880546
Flx_rem 42231904
Flx_rem_basecase 798790383
Flx_rem_pre 922812560
Flx_renormalize 2144464205
Flx_rescale 1117
Flx_resultant 4740402
Flx_resultant_basecase_pre 14607041
Flx_resultant_pre 14608967
Flx_shift 27407447
Flx_shiftip 629704819
Flx_splitting 147213
Flx_sqr 370226
Flx_sqr_pre 276072244
Flx_sqrspec 276160637
Flx_sqrspec_Kronecker 676922
Flx_sqrspec_basecase 275356531
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2070
Flx_sqrspec_sqri_inflate 11814
Flx_sub 137108026
Flx_subspec 898128
Flx_to_Flv 66658377
Flx_to_FlxX 71405
Flx_to_ZX 38314667
Flx_to_ZX_inplace 36551842
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204576
Flx_translate1 663342
Flx_translate1_basecase 675437
Flx_triple 984021
Flx_unscale 0
Flx_val 4475983
Flx_valrem 28525435
Flxn_div 56627
Flxn_div_pre 56640
Flxn_exp 0
Flxn_expint 109542
Flxn_inv 1037
Flxn_mul 75980
Flxn_mul_pre 5185902
Flxn_mulhigh 527905
Flxn_recip 218125
Flxn_red 6371247
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 779544
Flxq_auttrace_pre 960262
Flxq_auttrace_sqr 652288
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237947
Flxq_div_pre 2313081
Flxq_easylog 519433
Flxq_inv 335766
Flxq_inv_pre 4182761
Flxq_invsafe 670531
Flxq_invsafe_pre 5325905
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 170648
Flxq_minpoly 45937
Flxq_minpoly_pre 809781
Flxq_mul 13194226
Flxq_mul_pre 187666211
Flxq_norm 443253
Flxq_order 97322
Flxq_pow 932913
Flxq_pow_Frobenius 22225331
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23273599
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232123
Flxq_powers_pre 22448496
Flxq_powu 488366
Flxq_powu_pre 24186956
Flxq_sqr 2763427
Flxq_sqr_pre 275060887
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 4212419
Flxq_transmul_init 1746340
RgXV_to_FlxV 7
RgX_to_Flx 2208858
Rg_to_F2 1715095
Rg_to_Fl 73080314
Rg_to_Flxq 3589495
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3797695
ZXV_to_FlxV 0
ZX_to_Flx 171078558
Z_mod2BIL_Flx 305867
Z_mod2BIL_Flx_2 308797
Z_mod2BIL_Flx_3 0
Z_to_Flx 7593856
ZpX_invLaplace_init 497
_Fl2_mul 1924019
_Fl2_pow 671883
_Fl2_rand 113785
_Fl2_sqr 4911013
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11786904
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 146690193
_Flxq_neg 366572
_Flxq_one 22450579
_Flxq_pow 22217922
_Flxq_powu 68
_Flxq_powu_i 22933752
_Flxq_rand 6565
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 267405449
bounded_order 394008
gener_Flxq 7201
get_Fl_threshold 2320847150
get_Flx_red 985818885
get_Flxq_field 68902
get_Flxq_star 283433
init_invlaplace 12514
int_to_Flx 12217
int_to_Flx_half 507058
int_to_Flx_quart 107397
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 20933298
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 5622460
kron_unpack_Flx_bits_wide 5668291
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8442079
mkF2 27667736
monomial_Flx 941275
random_Flx 2646290
set_Flxq 68922
set_Flxq_pre 69212507
translate_basecase 688602
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6415987

Generated by: LCOV version 1.16