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 30658-0716cf3506) Lines: 2558 2925 87.5 %
Date: 2026-01-31 09:22:40 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 1116
Flxq_autpowers 1667
FlxqX_dotproduct 1918
Flx_sqrspec_sqri 2067
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 3932
Flxq_pow_table_pre 4391
Flxq_trace 4696
Flx_FlxqV_eval 5082
Flx_mulspec_halfmulii 5463
_Flxq_rand 6551
_Flxq_s 6567
Flx_FlxM_qmul 6927
FlxM_mul2 7099
gener_Flxq 7201
Flx_is_l_pow 8137
Flx_halfres_update_pre 9405
_Flxq_inv 9460
Flv_inv_pre 9644
Flx_mulspec_mulii 10136
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 12214
init_invlaplace 12514
Flx_halve 14026
Flx_diff1 14400
Flx_translate1 17059
Flx_halfres_split 19964
Flxq_autpow_msqr 20698
Flxq_sqrtn_spec_pre 21901
FlxM_eval_powers_pre 22302
Flxq_sqrtn 23094
Flx_invBarrett_Newton 23161
ZM_unpack_FlxM 23421
Flxq_lroot_pre 25053
zlx_translate1 25259
FlxM_Flx_mul2 26000
Flx_Laplace 27346
Flx_composedsum 27551
FlxV_composedsum 28963
Flx_translate1_basecase 29149
Flx_mod_Xn1 31509
FlxV_Flc_mul 34480
Fl_Flxq_log 35554
Flxq_sqrtl_spec_pre 37666
Flxq_sumautsum_msqr 40915
translate_basecase 42315
kron_unpack_Flx 42785
Flxq_minpoly 45937
FlxM_pack_ZM 46835
Flxq_autpow_sqr 47320
Flv_inv_indir 52213
kron_pack_Flx_spec 53168
Flx_Newton 54101
Flx_invLaplace 54369
Flxn_div 56335
Flxn_div_pre 56348
ZM_unpack_FlxM_bits 58160
Fl2_sqrt_pre 65849
get_Flxq_field 68902
set_Flxq 68922
_Flxq_equal0 69139
Flxq_autpow_pre 69453
Flx_to_FlxX 71405
Flx_is_smooth 74256
Flxn_mul 75840
Fl2_sqrtn_pre 76146
FlxM_mul_Kronecker_i 81581
FlxqM_mul_Kronecker 81581
FlxqM_red_pre 81581
Flx_matFrobenius_pre 86568
Flx_Frobenius 86617
Flx_mulspec_quartmulii 97166
Flxq_order 97328
Flxq_autsum_pre 98771
FlxC_to_ZXC 104060
Flv_Flm_polint 104559
Flxq_autsum_sqr 105113
int_to_Flx_quart 107384
Flx_fromNewton 109397
Flxn_expint 109399
Flxq_autsum_mul 112475
FlxqV_dotproduct_pre 113589
Flxq_lroot_fast_pre 113589
_Fl2_rand 113980
FlxM_pack_ZM_bits 116239
Flx_is_smooth_pre 118013
Flx_is_smooth_squarefree 126116
Fl2_norm_pre 127654
Flx_invBarrett_basecase 134391
Flx_extgcd_halfgcd 146644
Flx_splitting 147435
Flx_Fl_sub 151682
Flv_invVandermonde 153445
Flx_invBarrett_pre 158852
Flx_inflate 160208
Flxq_log 164210
Flxq_matrix_pow_pre 170662
FlxV_to_Flm 171870
Fl2_inv_pre 197564
Flx_to_int_quartspec 204550
Flxq_sumautsum_pre 210713
Flxn_recip 217355
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_powers 232013
FlxqC_red_pre 234845
Flxq_div 237891
get_Flxq_star 283438
Flx_mulspec_mulii_inflate 294057
FlxT_red 295176
Flxq_sumautsum_sqr 295314
Z_mod2BIL_Flx 305871
Z_mod2BIL_Flx_2 308801
FlxC_eval_powers_pre 325151
Flxq_inv 335773
Flx_sqr 354698
_Flxq_neg 366572
_Flxq_add 389834
bounded_order 395377
FlxV_to_FlxX 397977
Flxq_issquare 404492
Flx_addmulmul 416787
Flx_deflate 420774
Flx_integXn 422761
Flxq_norm 443141
Fl2_equal1 450463
Flx_to_int_halfspec 468590
Flxq_powu 488340
int_to_Flx_half 507058
Flxq_easylog 519371
Flxn_mulhigh 526024
Flx_blocks 526107
Flx_eval2BILspec 603317
Flx_divrem_Barrett 604850
FlxV_to_ZXV 606840
Flxq_auttrace_sqr 652855
Flxq_invsafe 669600
_Fl2_pow 672496
Fl2_pow_pre 672540
kron_pack_Flx_spec_half 688104
Flx_sqrspec_Kronecker 695101
Flxq_auttrace_mul 780126
Flx_Flxq_eval 791300
Flxq_minpoly_pre 809716
Flv_roots_to_pol 841814
Flx_extgcd 856806
Flx_halfgcd_pre 873250
Flx_subspec 898862
Flx_divrem_Barrettspec 905596
monomial_Flx 941327
Flx_mulhigh_i 947908
Flxq_pow 948270
Flxq_auttrace_pre 959974
Flx_triple 1049261
Flx_halfgcd_all_i 1126856
Flx_halfgcd_all_pre 1126861
Flx_halfres_basecase 1133933
Flx_halfres_i 1153901
_Flxq_rmul 1461838
Flv_polint 1485138
_Flxq_red 1550928
Rg_to_F2 1710164
Flv_inv 1744401
Flv_producttree 1745628
Flxq_transmul_init 1746466
Flv_inv_i 1756413
Flx_neg_inplace 1780025
Flx_Flv_multieval_tree 1785904
Flx_red 1880893
_Fl2_mul 1925392
Fl2_mul_pre 1954464
Flx_lgrenormalizespec 2135083
RgX_to_Flx 2249934
Flxq_div_pre 2416846
Flx_double 2443925
Flx_Flxq_eval_pre 2444597
FlvV_polint_tree 2587225
random_Flx 2646095
Flxq_sqr 2763152
FlxV_to_ZXV_inplace 3031482
Flx_neg 3264518
Flx_negspec 3264523
Rg_to_Flxq 3588247
Flx_addshift 3729093
ZXT_to_FlxT 3813276
Flxq_transmul 4212847
Flxq_inv_pre 4286511
Flx_val 4475426
Flx_resultant 4730212
Flx_mod_Xnm1 4908075
_Fl2_sqr 4910564
Fl2_sqr_pre 4910623
Flxn_mul_pre 5179575
Flxq_invsafe_pre 5428664
kron_unpack_Flx_bits_narrow 5664199
kron_unpack_Flx_bits_wide 5669742
Flx_extgcd_pre 6285407
Flx_extgcd_basecase 6285411
Flxn_red 6360814
zx_to_Flx 6401783
Flx_addspec 7259598
Flx_recipspec 7289279
mkF2 7325733
Flx_Fl_mul 7326760
Flx_mulspec_Kronecker 7356440
Z_to_Flx 7556392
maxbitcoeffpol 8485081
Flx_is_squarefree 9181173
Flx_Fl_add 9847647
_Flx_mul 11779665
Flx_Fl_mul_to_monic 11858007
Flx_blocks_Flm 12968349
FlxV_to_Flm_lg 12968883
Flx_FlxqV_eval_pre 13167800
Flxq_mul 13192319
Flx_Frobenius_pre 13813123
Flx_get_red 14503983
Flx_resultant_basecase_pre 14593866
Flx_resultant_pre 14596071
Flx_Fl_mul_pre 18288400
Flv_inv_pre_inplace 19314540
Flx_eval 20438843
kron_pack_Flx_spec_bits 21000054
Flv_inv_pre_indir 21062199
Fl_to_Flx 21949222
_Flxq_pow 22140516
Flxq_pow_Frobenius 22147924
Flxq_powers_pre 22437579
_Flxq_one 22437807
_Flxq_powu_i 22924470
Flx_deriv 22980109
Flxq_pow_pre 23211345
Flxq_powu_pre 24178548
Flv_to_Flx 25487687
Flx_equal 26639946
Flx_shift 27398065
Flx_mul 27806770
Flx_valrem 28478670
Flx_divrem 30449497
Flx_gcd 35021039
Flx_div_by_X_x 36563748
Flx_to_ZX_inplace 36574357
Flx_to_ZX 38300013
Flx_rem 42227823
Flx_eval_powers_pre 48606934
Flx_divrem_basecase 62269433
Flx_normalize 64809439
Flx_add 66123759
Flx_to_Flv 66645303
set_Flxq_pre 69129052
Rg_to_Fl 73207857
Flx_divrem_pre 79713446
Flx_gcd_basecase 85782121
Flx_gcd_pre 87445368
Flx_get_red_pre 96881122
Flx_eval_pre 136168453
Flx_sub 138630943
_Flxq_mul 146430300
ZX_to_Flx 170987153
Flxq_mul_pre 187635362
_Flxq_sqr 267302362
Flxq_sqr_pre 275152123
Flx_sqrspec_basecase 275502785
Flx_sqr_pre 276130221
Flx_sqrspec 276266533
Flx_mulspec_basecase 346752294
Flx_mul_pre 378890800
Flx_mulspec 384472904
Flx_shiftip 631411468
Flx_rem_basecase 798122757
Flx_rem_pre 922208521
get_Flx_red 986247250
Flx_mullimb 1188398913
Flx_renormalize 2150067342
get_Fl_threshold 2323470647
Flx_mullimb_ok 3362424256

Generated by: LCOV version 1.16