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 30862-ea47bd413c) Lines: 2553 2925 87.3 %
Date: 2026-05-06 09:26:47 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 450049
Fl2_inv_pre 197388
Fl2_mul_pre 17092889
Fl2_norm_pre 97118590
Fl2_pow_pre 671960
Fl2_sqr_pre 4911297
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76083
Fl_Flxq_log 35566
Fl_Xp1_powu 0
Fl_to_Flx 21949419
Flm_to_FlxV 2772
FlvV_polint_tree 2587616
Flv_Flm_polint 104562
Flv_inv 1744774
Flv_invVandermonde 153445
Flv_inv_i 1756784
Flv_inv_indir 52215
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 21075275
Flv_inv_pre_inplace 19345987
Flv_polint 1485498
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745980
Flv_roots_to_pol 842072
Flv_to_Flx 25497621
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 325149
FlxC_neg 0
FlxC_sub 0
FlxC_to_ZXC 104060
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_Flx_mul2 26382
FlxM_eval_powers_pre 22302
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_mul2 7279
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 295159
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28991
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171855
FlxV_to_Flm_lg 12974225
FlxV_to_FlxX 397987
FlxV_to_ZXV 610607
FlxV_to_ZXV_inplace 3034494
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9844293
Flx_Fl_mul 9423764
Flx_Fl_mul_pre 20216276
Flx_Fl_mul_to_monic 11864235
Flx_Fl_sub 151828
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786284
Flx_FlxM_qmul 7107
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13173035
Flx_Flxq_eval 791473
Flx_Flxq_eval_pre 2445016
Flx_Frobenius 86618
Flx_Frobenius_pre 13828332
Flx_Laplace 27492
Flx_Newton 54391
Flx_add 73820464
Flx_addmulmul 360116
Flx_addshift 3768888
Flx_addspec 7339173
Flx_blocks 527815
Flx_blocks_Flm 12973557
Flx_composedprod 0
Flx_composedsum 27705
Flx_convol 0
Flx_deflate 421312
Flx_deriv 22905601
Flx_diff1 660618
Flx_digits 0
Flx_div_by_X_x 36563739
Flx_divrem 30470361
Flx_divrem_Barrett 610135
Flx_divrem_Barrettspec 912076
Flx_divrem_basecase 61307650
Flx_divrem_pre 78747202
Flx_double 1179459
Flx_equal 25810564
Flx_eval 20410589
Flx_eval2BILspec 603315
Flx_eval_powers_pre 48584306
Flx_eval_pre 136175916
Flx_extgcd 859504
Flx_extgcd_basecase 6194230
Flx_extgcd_halfgcd 126132
Flx_extgcd_pre 6194222
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109557
Flx_gcd 35060196
Flx_gcd_basecase 85856998
Flx_gcd_pre 87523173
Flx_get_red 14517457
Flx_get_red_pre 96808679
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1088253
Flx_halfgcd_all_pre 1088254
Flx_halfgcd_pre 873423
Flx_halfres_basecase 1095512
Flx_halfres_i 1115679
Flx_halfres_pre 1044
Flx_halfres_split 20166
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160631
Flx_integ 0
Flx_integXn 423426
Flx_invBarrett 0
Flx_invBarrett_Newton 23249
Flx_invBarrett_basecase 134452
Flx_invBarrett_pre 159001
Flx_invLaplace 54662
Flx_is_l_pow 8179
Flx_is_smooth 74256
Flx_is_smooth_pre 118604
Flx_is_smooth_squarefree 126826
Flx_is_squarefree 9221223
Flx_lgrenormalizespec 2149088
Flx_matFrobenius 0
Flx_matFrobenius_pre 86554
Flx_mod_Xn1 31631
Flx_mod_Xnm1 4907358
Flx_mul 26762423
Flx_mul_pre 380339991
Flx_mulhigh_i 950300
Flx_mullimb 1185139710
Flx_mullimb_ok 3340825197
Flx_mulspec 385977404
Flx_mulspec_Kronecker 7385625
Flx_mulspec_basecase 346037032
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10135
Flx_mulspec_mulii_inflate 294056
Flx_mulspec_quartmulii 98885
Flx_neg 4175680
Flx_neg_inplace 1799912
Flx_negspec 4175662
Flx_normalize 64827890
Flx_powu 0
Flx_powu_pre 3932
Flx_recip 0
Flx_recipspec 7302272
Flx_red 1882259
Flx_rem 42227320
Flx_rem_basecase 796440532
Flx_rem_pre 922580764
Flx_renormalize 2161136017
Flx_rescale 1117
Flx_resultant 4609823
Flx_resultant_basecase_pre 14476503
Flx_resultant_pre 14478476
Flx_shift 27410579
Flx_shiftip 628382121
Flx_splitting 147435
Flx_sqr 370267
Flx_sqr_pre 274055831
Flx_sqrspec 274146798
Flx_sqrspec_Kronecker 672020
Flx_sqrspec_basecase 273421307
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2066
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136775763
Flx_subspec 904488
Flx_to_Flv 66677286
Flx_to_FlxX 71405
Flx_to_ZX 38412331
Flx_to_ZX_inplace 36586804
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 207988
Flx_translate1 663293
Flx_translate1_basecase 675375
Flx_triple 551294
Flx_unscale 0
Flx_val 4477041
Flx_valrem 28466920
Flxn_div 56648
Flxn_div_pre 56667
Flxn_exp 0
Flxn_expint 109553
Flxn_inv 1037
Flxn_mul 75991
Flxn_mul_pre 5185142
Flxn_mulhigh 527751
Flxn_recip 218133
Flxn_red 6369883
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 20699
Flxq_autpow_pre 69439
Flxq_autpow_sqr 47293
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112143
Flxq_autsum_pre 98590
Flxq_autsum_sqr 104923
Flxq_auttrace 0
Flxq_auttrace_mul 779902
Flxq_auttrace_pre 960723
Flxq_auttrace_sqr 652642
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 1167600
Flxq_div_pre 2313669
Flxq_easylog 519438
Flxq_inv 335792
Flxq_inv_pre 4183803
Flxq_invsafe 670729
Flxq_invsafe_pre 5334736
Flxq_is2npower 0
Flxq_issquare 404606
Flxq_log 164217
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_lroot_fast_pre 113589
Flxq_lroot_pre 25053
Flxq_matrix_pow 399
Flxq_matrix_pow_pre 170643
Flxq_minpoly 45944
Flxq_minpoly_pre 809850
Flxq_mul 18080034
Flxq_mul_pre 190774168
Flxq_norm 443250
Flxq_order 97322
Flxq_pow 933250
Flxq_pow_Frobenius 22047574
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23096216
Flxq_pow_table 0
Flxq_pow_table_pre 4394
Flxq_powers 232118
Flxq_powers_pre 22459021
Flxq_powu 488490
Flxq_powu_pre 24195226
Flxq_sqr 2763491
Flxq_sqr_pre 273076082
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_sqrtl_spec_pre 37674
Flxq_sqrtn 23109
Flxq_sqrtn_spec_pre 21915
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210702
Flxq_sumautsum_sqr 295253
Flxq_trace 4724
Flxq_transmul 4213387
Flxq_transmul_init 1746835
RgXV_to_FlxV 7
RgX_to_Flx 2210275
Rg_to_F2 1715136
Rg_to_Fl 73089724
Rg_to_Flxq 3465676
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3798603
ZXV_to_FlxV 0
ZX_to_Flx 171168220
Z_mod2BIL_Flx 305870
Z_mod2BIL_Flx_2 308800
Z_mod2BIL_Flx_3 0
Z_to_Flx 7610211
ZpX_invLaplace_init 504
_Fl2_mul 1924518
_Fl2_pow 671948
_Fl2_rand 113816
_Fl2_sqr 4911272
_Flx_add 0
_Flx_composedsum 3889
_Flx_divrem 0
_Flx_mul 11780464
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 146249242
_Flxq_neg 366572
_Flxq_one 22458164
_Flxq_pow 22040157
_Flxq_powu 68
_Flxq_powu_i 22941376
_Flxq_rand 6592
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 266744179
bounded_order 394057
gener_Flxq 7201
get_Fl_threshold 2314574342
get_Flx_red 985577100
get_Flxq_field 68902
get_Flxq_star 283454
init_invlaplace 12521
int_to_Flx 12214
int_to_Flx_half 507058
int_to_Flx_quart 109103
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 21036348
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 5642563
kron_unpack_Flx_bits_wide 5697834
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8493811
mkF2 27668670
monomial_Flx 941560
random_Flx 2647033
set_Flxq 68922
set_Flxq_pre 69048601
translate_basecase 688547
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6407123

Generated by: LCOV version 1.16