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
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 504
matid2_FlxM 911
Flxn_inv 1037
Flx_halfres_pre 1044
Flx_rescale 1117
Flxq_autpowers 1667
FlxqX_dotproduct 1918
Flx_sqrspec_sqri 2066
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 3889
Flx_powu_pre 3932
Flxq_pow_table_pre 4394
Flxq_trace 4724
Flx_FlxqV_eval 5082
Flx_mulspec_halfmulii 5463
_Flxq_s 6567
_Flxq_rand 6592
Flx_FlxM_qmul 7107
gener_Flxq 7201
FlxM_mul2 7279
Flx_is_l_pow 8179
Flx_halfres_update_pre 9405
_Flxq_inv 9460
Flv_inv_pre 9645
Flx_mulspec_mulii 10135
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri_inflate 11814
Flv_inv_inplace 12017
zl_Xp1_powu 12017
int_to_Flx 12214
init_invlaplace 12521
Flx_halve 14026
Flx_halfres_split 20166
Flxq_autpow_msqr 20699
Flxq_sqrtn_spec_pre 21915
FlxM_eval_powers_pre 22302
Flxq_sqrtn 23109
Flx_invBarrett_Newton 23249
ZM_unpack_FlxM 23421
Flxq_lroot_pre 25053
zlx_translate1 25259
FlxM_Flx_mul2 26382
Flx_Laplace 27492
Flx_composedsum 27705
FlxV_composedsum 28991
Flx_mod_Xn1 31631
FlxV_Flc_mul 34482
Fl_Flxq_log 35566
Flxq_sqrtl_spec_pre 37674
Flxq_sumautsum_msqr 40869
kron_unpack_Flx 42785
Flxq_minpoly 45944
FlxM_pack_ZM 46835
Flxq_autpow_sqr 47293
Flv_inv_indir 52215
kron_pack_Flx_spec 53168
Flx_Newton 54391
Flx_invLaplace 54662
Flxn_div 56648
Flxn_div_pre 56667
ZM_unpack_FlxM_bits 58170
Fl2_sqrt_pre 65848
get_Flxq_field 68902
set_Flxq 68922
_Flxq_equal0 69139
Flxq_autpow_pre 69439
Flx_to_FlxX 71405
Flx_is_smooth 74256
Flxn_mul 75991
Fl2_sqrtn_pre 76083
FlxM_mul_Kronecker_i 81591
FlxqM_mul_Kronecker 81591
FlxqM_red_pre 81591
Flx_matFrobenius_pre 86554
Flx_Frobenius 86618
Flxq_order 97322
Flxq_autsum_pre 98590
Flx_mulspec_quartmulii 98885
FlxC_to_ZXC 104060
Flv_Flm_polint 104562
Flxq_autsum_sqr 104923
int_to_Flx_quart 109103
Flxn_expint 109553
Flx_fromNewton 109557
Flxq_autsum_mul 112143
FlxqV_dotproduct_pre 113589
Flxq_lroot_fast_pre 113589
_Fl2_rand 113816
FlxM_pack_ZM_bits 116259
Flx_is_smooth_pre 118604
Flx_extgcd_halfgcd 126132
Flx_is_smooth_squarefree 126826
Flx_invBarrett_basecase 134452
Flx_splitting 147435
Flx_Fl_sub 151828
Flv_invVandermonde 153445
Flx_invBarrett_pre 159001
Flx_inflate 160631
Flxq_log 164217
Flxq_matrix_pow_pre 170643
FlxV_to_Flm 171855
Fl2_inv_pre 197388
Flx_to_int_quartspec 207988
Flxq_sumautsum_pre 210702
Flxn_recip 218133
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_powers 232118
FlxqC_red_pre 234855
get_Flxq_star 283454
Flx_mulspec_mulii_inflate 294056
FlxT_red 295159
Flxq_sumautsum_sqr 295253
Z_mod2BIL_Flx 305870
Z_mod2BIL_Flx_2 308800
FlxC_eval_powers_pre 325149
Flxq_inv 335792
Flx_addmulmul 360116
_Flxq_neg 366572
Flx_sqr 370267
_Flxq_add 389834
bounded_order 394057
FlxV_to_FlxX 397987
Flxq_issquare 404606
Flx_deflate 421312
Flx_integXn 423426
Flxq_norm 443250
Fl2_equal1 450049
Flx_to_int_halfspec 468590
Flxq_powu 488490
int_to_Flx_half 507058
Flxq_easylog 519438
Flxn_mulhigh 527751
Flx_blocks 527815
Flx_triple 551294
Flx_eval2BILspec 603315
Flx_divrem_Barrett 610135
FlxV_to_ZXV 610607
Flxq_auttrace_sqr 652642
Flx_diff1 660618
Flx_translate1 663293
Flxq_invsafe 670729
_Fl2_pow 671948
Fl2_pow_pre 671960
Flx_sqrspec_Kronecker 672020
Flx_translate1_basecase 675375
kron_pack_Flx_spec_half 688104
translate_basecase 688547
Flxq_auttrace_mul 779902
Flx_Flxq_eval 791473
Flxq_minpoly_pre 809850
Flv_roots_to_pol 842072
Flx_extgcd 859504
Flx_halfgcd_pre 873423
Flx_subspec 904488
Flx_divrem_Barrettspec 912076
Flxq_pow 933250
monomial_Flx 941560
Flx_mulhigh_i 950300
Flxq_auttrace_pre 960723
Flx_halfgcd_all_i 1088253
Flx_halfgcd_all_pre 1088254
Flx_halfres_basecase 1095512
Flx_halfres_i 1115679
Flxq_div 1167600
Flx_double 1179459
_Flxq_rmul 1461838
Flv_polint 1485498
_Flxq_red 1550928
Rg_to_F2 1715136
Flv_inv 1744774
Flv_producttree 1745980
Flxq_transmul_init 1746835
Flv_inv_i 1756784
Flx_Flv_multieval_tree 1786284
Flx_neg_inplace 1799912
Flx_red 1882259
_Fl2_mul 1924518
Flx_lgrenormalizespec 2149088
RgX_to_Flx 2210275
Flxq_div_pre 2313669
Flx_Flxq_eval_pre 2445016
FlvV_polint_tree 2587616
random_Flx 2647033
Flxq_sqr 2763491
FlxV_to_ZXV_inplace 3034494
Rg_to_Flxq 3465676
Flx_addshift 3768888
ZXT_to_FlxT 3798603
Flx_negspec 4175662
Flx_neg 4175680
Flxq_inv_pre 4183803
Flxq_transmul 4213387
Flx_val 4477041
Flx_resultant 4609823
Flx_mod_Xnm1 4907358
_Fl2_sqr 4911272
Fl2_sqr_pre 4911297
Flxn_mul_pre 5185142
Flx_Fl2_eval_pre 5214706
Flxq_invsafe_pre 5334736
kron_unpack_Flx_bits_narrow 5642563
kron_unpack_Flx_bits_wide 5697834
Flx_extgcd_pre 6194222
Flx_extgcd_basecase 6194230
Flxn_red 6369883
zx_to_Flx 6407123
Flx_recipspec 7302272
Flx_addspec 7339173
Flx_mulspec_Kronecker 7385625
Z_to_Flx 7610211
maxbitcoeffpol 8493811
Flx_is_squarefree 9221223
Flx_Fl_mul 9423764
Flx_Fl_add 9844293
_Flx_mul 11780464
Flx_Fl_mul_to_monic 11864235
Flx_blocks_Flm 12973557
FlxV_to_Flm_lg 12974225
Flx_FlxqV_eval_pre 13173035
Flx_Frobenius_pre 13828332
Flx_resultant_basecase_pre 14476503
Flx_resultant_pre 14478476
Flx_get_red 14517457
Fl2_mul_pre 17092889
Flxq_mul 18080034
Flv_inv_pre_inplace 19345987
Flx_Fl_mul_pre 20216276
Flx_eval 20410589
kron_pack_Flx_spec_bits 21036348
Flv_inv_pre_indir 21075275
Fl_to_Flx 21949419
_Flxq_pow 22040157
Flxq_pow_Frobenius 22047574
_Flxq_one 22458164
Flxq_powers_pre 22459021
Flx_deriv 22905601
_Flxq_powu_i 22941376
Flxq_pow_pre 23096216
Flxq_powu_pre 24195226
Flv_to_Flx 25497621
Flx_equal 25810564
Flx_mul 26762423
Flx_shift 27410579
mkF2 27668670
Flx_valrem 28466920
Flx_divrem 30470361
Flx_gcd 35060196
Flx_div_by_X_x 36563739
Flx_to_ZX_inplace 36586804
Flx_to_ZX 38412331
Flx_rem 42227320
Flx_eval_powers_pre 48584306
Flx_divrem_basecase 61307650
Flx_normalize 64827890
Flx_to_Flv 66677286
set_Flxq_pre 69048601
Rg_to_Fl 73089724
Flx_add 73820464
Flx_divrem_pre 78747202
Flx_gcd_basecase 85856998
Flx_gcd_pre 87523173
Flx_get_red_pre 96808679
Fl2_norm_pre 97118590
Flx_eval_pre 136175916
Flx_sub 136775763
_Flxq_mul 146249242
ZX_to_Flx 171168220
Flxq_mul_pre 190774168
_Flxq_sqr 266744179
Flxq_sqr_pre 273076082
Flx_sqrspec_basecase 273421307
Flx_sqr_pre 274055831
Flx_sqrspec 274146798
Flx_mulspec_basecase 346037032
Flx_mul_pre 380339991
Flx_mulspec 385977404
Flx_shiftip 628382121
Flx_rem_basecase 796440532
Flx_rem_pre 922580764
get_Flx_red 985577100
Flx_mullimb 1185139710
Flx_renormalize 2161136017
get_Fl_threshold 2314574342
Flx_mullimb_ok 3340825197

Generated by: LCOV version 1.16