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 30851-7844d7b3a5) Lines: 2553 2925 87.3 %
Date: 2026-05-02 09:26:58 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449972
Fl2_inv_pre 197355
Fl2_mul_pre 17094261
Fl2_norm_pre 97118626
Fl2_pow_pre 671897
Fl2_sqr_pre 4915417
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76130
Fl_Flxq_log 35577
Fl_Xp1_powu 0
Fl_to_Flx 21935894
Flm_to_FlxV 2772
FlvV_polint_tree 2587599
Flv_Flm_polint 104560
Flv_inv 1744748
Flv_invVandermonde 153445
Flv_inv_i 1756760
Flv_inv_indir 52212
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 21113273
Flv_inv_pre_inplace 19383986
Flv_polint 1485468
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745952
Flv_roots_to_pol 842043
Flv_to_Flx 25497612
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 325152
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 294683
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28990
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171866
FlxV_to_Flm_lg 12974212
FlxV_to_FlxX 397987
FlxV_to_ZXV 610602
FlxV_to_ZXV_inplace 3032564
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9843882
Flx_Fl_mul 9423157
Flx_Fl_mul_pre 20216850
Flx_Fl_mul_to_monic 11863476
Flx_Fl_sub 151828
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786253
Flx_FlxM_qmul 7107
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13172969
Flx_Flxq_eval 791491
Flx_Flxq_eval_pre 2445042
Flx_Frobenius 86619
Flx_Frobenius_pre 13828090
Flx_Laplace 27482
Flx_Newton 54389
Flx_add 73793641
Flx_addmulmul 360110
Flx_addshift 3768888
Flx_addspec 7339173
Flx_blocks 527655
Flx_blocks_Flm 12973457
Flx_composedprod 0
Flx_composedsum 27697
Flx_convol 0
Flx_deflate 421333
Flx_deriv 22906006
Flx_diff1 660677
Flx_digits 0
Flx_div_by_X_x 36567080
Flx_divrem 30471360
Flx_divrem_Barrett 609983
Flx_divrem_Barrettspec 911777
Flx_divrem_basecase 61310317
Flx_divrem_pre 78753093
Flx_double 1179459
Flx_equal 25787280
Flx_eval 20419134
Flx_eval2BILspec 603335
Flx_eval_powers_pre 48542405
Flx_eval_pre 136177574
Flx_extgcd 859519
Flx_extgcd_basecase 6194262
Flx_extgcd_halfgcd 126127
Flx_extgcd_pre 6194276
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109550
Flx_gcd 35049145
Flx_gcd_basecase 85848976
Flx_gcd_pre 87513164
Flx_get_red 14515687
Flx_get_red_pre 96727516
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1088602
Flx_halfgcd_all_pre 1088605
Flx_halfgcd_pre 873436
Flx_halfres_basecase 1095859
Flx_halfres_i 1116027
Flx_halfres_pre 1044
Flx_halfres_split 20166
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160694
Flx_integ 0
Flx_integXn 423402
Flx_invBarrett 0
Flx_invBarrett_Newton 23252
Flx_invBarrett_basecase 134453
Flx_invBarrett_pre 159004
Flx_invLaplace 54657
Flx_is_l_pow 8212
Flx_is_smooth 74256
Flx_is_smooth_pre 119167
Flx_is_smooth_squarefree 127426
Flx_is_squarefree 9221271
Flx_lgrenormalizespec 2148720
Flx_matFrobenius 0
Flx_matFrobenius_pre 86555
Flx_mod_Xn1 31633
Flx_mod_Xnm1 4907402
Flx_mul 26768256
Flx_mul_pre 380083829
Flx_mulhigh_i 950080
Flx_mullimb 1185013262
Flx_mullimb_ok 3338152741
Flx_mulspec 385724153
Flx_mulspec_Kronecker 7385172
Flx_mulspec_basecase 345816488
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10142
Flx_mulspec_mulii_inflate 294066
Flx_mulspec_quartmulii 98864
Flx_neg 4175683
Flx_neg_inplace 1799912
Flx_negspec 4175670
Flx_normalize 64816822
Flx_powu 0
Flx_powu_pre 3923
Flx_recip 0
Flx_recipspec 7301983
Flx_red 1881789
Flx_rem 42225300
Flx_rem_basecase 796403437
Flx_rem_pre 922454693
Flx_renormalize 2161376103
Flx_rescale 1117
Flx_resultant 4609921
Flx_resultant_basecase_pre 14475888
Flx_resultant_pre 14477993
Flx_shift 27409492
Flx_shiftip 628173284
Flx_splitting 147382
Flx_sqr 370252
Flx_sqr_pre 274059580
Flx_sqrspec 274169098
Flx_sqrspec_Kronecker 672009
Flx_sqrspec_basecase 273440589
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2068
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136783180
Flx_subspec 904271
Flx_to_Flv 66674632
Flx_to_FlxX 71405
Flx_to_ZX 38409956
Flx_to_ZX_inplace 36587777
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 207946
Flx_translate1 663340
Flx_translate1_basecase 675422
Flx_triple 551294
Flx_unscale 0
Flx_val 4471924
Flx_valrem 28466027
Flxn_div 56623
Flxn_div_pre 56634
Flxn_exp 0
Flxn_expint 109547
Flxn_inv 1037
Flxn_mul 75987
Flxn_mul_pre 5184574
Flxn_mulhigh 527581
Flxn_recip 218063
Flxn_red 6368733
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 69428
Flxq_autpow_sqr 47278
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112115
Flxq_autsum_pre 98579
Flxq_autsum_sqr 104900
Flxq_auttrace 0
Flxq_auttrace_mul 779918
Flxq_auttrace_pre 960724
Flxq_auttrace_sqr 652667
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 1167600
Flxq_div_pre 2313669
Flxq_easylog 519467
Flxq_inv 335783
Flxq_inv_pre 4183824
Flxq_invsafe 670720
Flxq_invsafe_pre 5334773
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 170646
Flxq_minpoly 45944
Flxq_minpoly_pre 809799
Flxq_mul 18080034
Flxq_mul_pre 190615572
Flxq_norm 443261
Flxq_order 97322
Flxq_pow 933282
Flxq_pow_Frobenius 21966946
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23015584
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232114
Flxq_powers_pre 22458678
Flxq_powu 488498
Flxq_powu_pre 24196868
Flxq_sqr 2763490
Flxq_sqr_pre 273064509
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_sqrtl_spec_pre 37674
Flxq_sqrtn 23108
Flxq_sqrtn_spec_pre 21914
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210702
Flxq_sumautsum_sqr 295253
Flxq_trace 4724
Flxq_transmul 4213598
Flxq_transmul_init 1746844
RgXV_to_FlxV 7
RgX_to_Flx 2210275
Rg_to_F2 1715128
Rg_to_Fl 73090785
Rg_to_Flxq 3465650
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3798579
ZXV_to_FlxV 0
ZX_to_Flx 171167003
Z_mod2BIL_Flx 305880
Z_mod2BIL_Flx_2 308810
Z_mod2BIL_Flx_3 0
Z_to_Flx 7610031
ZpX_invLaplace_init 504
_Fl2_mul 1925915
_Fl2_pow 671882
_Fl2_rand 113921
_Fl2_sqr 4915409
_Flx_add 0
_Flx_composedsum 3889
_Flx_divrem 0
_Flx_mul 11771689
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 146086278
_Flxq_neg 366572
_Flxq_one 22456727
_Flxq_pow 21959537
_Flxq_powu 68
_Flxq_powu_i 22941992
_Flxq_rand 6578
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 266724723
bounded_order 394032
gener_Flxq 7201
get_Fl_threshold 2313846212
get_Flx_red 985510076
get_Flxq_field 68902
get_Flxq_star 283453
init_invlaplace 12521
int_to_Flx 12217
int_to_Flx_half 507058
int_to_Flx_quart 109082
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 21036031
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 5642151
kron_unpack_Flx_bits_wide 5698147
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8493293
mkF2 27674521
monomial_Flx 941574
random_Flx 2647010
set_Flxq 68922
set_Flxq_pre 68967118
translate_basecase 688592
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6406139

Generated by: LCOV version 1.16