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 30674-be81ecfdd4) Lines: 2553 2925 87.3 %
Date: 2026-02-13 09:23:38 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 197384
Fl2_mul_pre 1954370
Fl2_norm_pre 127635
Fl2_pow_pre 671869
Fl2_sqr_pre 4914577
Fl2_sqrt_pre 65849
Fl2_sqrtn_pre 76109
Fl_Flxq_log 35557
Fl_Xp1_powu 0
Fl_to_Flx 21950366
Flm_to_FlxV 2772
FlvV_polint_tree 2587538
Flv_Flm_polint 104559
Flv_inv 1744482
Flv_invVandermonde 153445
Flv_inv_i 1756497
Flv_inv_indir 52214
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 21112490
Flv_inv_pre_inplace 19380363
Flv_polint 1485201
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745682
Flv_roots_to_pol 842096
Flv_to_Flx 25488438
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 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 293158
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28959
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171878
FlxV_to_Flm_lg 12968988
FlxV_to_FlxX 397977
FlxV_to_ZXV 606836
FlxV_to_ZXV_inplace 3031579
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9844353
Flx_Fl_mul 7327188
Flx_Fl_mul_pre 18292047
Flx_Fl_mul_to_monic 11857281
Flx_Fl_sub 151679
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1785990
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13167851
Flx_Flxq_eval 791302
Flx_Flxq_eval_pre 2444599
Flx_Frobenius 86619
Flx_Frobenius_pre 13813682
Flx_Laplace 27355
Flx_Newton 54115
Flx_add 66130481
Flx_addmulmul 416803
Flx_addshift 3729093
Flx_addspec 7259598
Flx_blocks 526491
Flx_blocks_Flm 12968322
Flx_composedprod 0
Flx_composedsum 27556
Flx_convol 0
Flx_deflate 420794
Flx_deriv 22982043
Flx_diff1 14447
Flx_digits 0
Flx_div_by_X_x 36582358
Flx_divrem 30446544
Flx_divrem_Barrett 604292
Flx_divrem_Barrettspec 905879
Flx_divrem_basecase 62290763
Flx_divrem_pre 79736638
Flx_double 2443925
Flx_equal 27270469
Flx_eval 20435436
Flx_eval2BILspec 603309
Flx_eval_powers_pre 48596219
Flx_eval_pre 136180837
Flx_extgcd 856790
Flx_extgcd_basecase 6286286
Flx_extgcd_halfgcd 146655
Flx_extgcd_pre 6286293
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109402
Flx_gcd 35011175
Flx_gcd_basecase 85778073
Flx_gcd_pre 87436588
Flx_get_red 14504331
Flx_get_red_pre 97439227
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1127349
Flx_halfgcd_all_pre 1127340
Flx_halfgcd_pre 873238
Flx_halfres_basecase 1134422
Flx_halfres_i 1154393
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160216
Flx_integ 0
Flx_integXn 422828
Flx_invBarrett 0
Flx_invBarrett_Newton 23161
Flx_invBarrett_basecase 134392
Flx_invBarrett_pre 158853
Flx_invLaplace 54388
Flx_is_l_pow 8200
Flx_is_smooth 74256
Flx_is_smooth_pre 118778
Flx_is_smooth_squarefree 126994
Flx_is_squarefree 9181053
Flx_lgrenormalizespec 2133940
Flx_matFrobenius 0
Flx_matFrobenius_pre 86568
Flx_mod_Xn1 31509
Flx_mod_Xnm1 4907441
Flx_mul 27796121
Flx_mul_pre 380012117
Flx_mulhigh_i 948694
Flx_mullimb 1193309037
Flx_mullimb_ok 3362173844
Flx_mulspec 385611188
Flx_mulspec_Kronecker 7355180
Flx_mulspec_basecase 347889885
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10136
Flx_mulspec_mulii_inflate 294053
Flx_mulspec_quartmulii 97167
Flx_neg 3264107
Flx_neg_inplace 1780025
Flx_negspec 3264100
Flx_normalize 64853124
Flx_powu 0
Flx_powu_pre 3895
Flx_recip 0
Flx_recipspec 7288337
Flx_red 1879095
Flx_rem 42221614
Flx_rem_basecase 799732613
Flx_rem_pre 923765692
Flx_renormalize 2155021891
Flx_rescale 1117
Flx_resultant 4731635
Flx_resultant_basecase_pre 14596736
Flx_resultant_pre 14598731
Flx_shift 27400671
Flx_shiftip 632924540
Flx_splitting 147210
Flx_sqr 354655
Flx_sqr_pre 276530742
Flx_sqrspec 276615495
Flx_sqrspec_Kronecker 695049
Flx_sqrspec_basecase 275843282
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2070
Flx_sqrspec_sqri_inflate 11814
Flx_sub 138660661
Flx_subspec 898322
Flx_to_Flv 66650131
Flx_to_FlxX 71405
Flx_to_ZX 38300795
Flx_to_ZX_inplace 36551227
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204552
Flx_translate1 17106
Flx_translate1_basecase 29200
Flx_triple 1049261
Flx_unscale 0
Flx_val 4473052
Flx_valrem 28515374
Flxn_div 56384
Flxn_div_pre 56393
Flxn_exp 0
Flxn_expint 109401
Flxn_inv 1037
Flxn_mul 75841
Flxn_mul_pre 5181725
Flxn_mulhigh 526453
Flxn_recip 217494
Flxn_red 6365163
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 69451
Flxq_autpow_sqr 47314
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112476
Flxq_autsum_pre 98769
Flxq_autsum_sqr 105113
Flxq_auttrace 0
Flxq_auttrace_mul 780060
Flxq_auttrace_pre 959893
Flxq_auttrace_sqr 652745
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237891
Flxq_div_pre 2416845
Flxq_easylog 519365
Flxq_inv 335773
Flxq_inv_pre 4286502
Flxq_invsafe 670421
Flxq_invsafe_pre 5429520
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 170657
Flxq_minpoly 45937
Flxq_minpoly_pre 809704
Flxq_mul 13192504
Flxq_mul_pre 188701596
Flxq_norm 443140
Flxq_order 97328
Flxq_pow 948259
Flxq_pow_Frobenius 22703957
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23767362
Flxq_pow_table 0
Flxq_pow_table_pre 4394
Flxq_powers 232008
Flxq_powers_pre 22435942
Flxq_powu 488329
Flxq_powu_pre 24182119
Flxq_sqr 2763157
Flxq_sqr_pre 275544713
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_sqrtl_spec_pre 37667
Flxq_sqrtn 23092
Flxq_sqrtn_spec_pre 21901
Flxq_sumautsum_msqr 40915
Flxq_sumautsum_pre 210713
Flxq_sumautsum_sqr 295314
Flxq_trace 4696
Flxq_transmul 4212726
Flxq_transmul_init 1746433
RgXV_to_FlxV 7
RgX_to_Flx 2205404
Rg_to_F2 1710110
Rg_to_Fl 72937024
Rg_to_Flxq 3588254
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58160
ZXT_to_FlxT 3812558
ZXV_to_FlxV 0
ZX_to_Flx 170999063
Z_mod2BIL_Flx 305867
Z_mod2BIL_Flx_2 308797
Z_mod2BIL_Flx_3 0
Z_to_Flx 7556674
ZpX_invLaplace_init 497
_Fl2_mul 1925331
_Fl2_pow 671854
_Fl2_rand 113862
_Fl2_sqr 4914552
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11783493
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 147493748
_Flxq_neg 366572
_Flxq_one 22438259
_Flxq_pow 22696547
_Flxq_powu 68
_Flxq_powu_i 22926548
_Flxq_rand 6589
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 267714746
bounded_order 395412
gener_Flxq 7201
get_Fl_threshold 2329163739
get_Flx_red 987852659
get_Flxq_field 68902
get_Flxq_star 283436
init_invlaplace 12514
int_to_Flx 12216
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 20997223
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 5662539
kron_unpack_Flx_bits_wide 5669421
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8483353
mkF2 7329290
monomial_Flx 941314
random_Flx 2646039
set_Flxq 68922
set_Flxq_pre 69688306
translate_basecase 42365
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6407019

Generated by: LCOV version 1.16