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
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 2068
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 3923
Flxq_pow_table_pre 4393
Flxq_trace 4724
Flx_FlxqV_eval 5082
Flx_mulspec_halfmulii 5463
_Flxq_s 6567
_Flxq_rand 6578
Flx_FlxM_qmul 7107
gener_Flxq 7201
FlxM_mul2 7279
Flx_is_l_pow 8212
Flx_halfres_update_pre 9405
_Flxq_inv 9460
Flv_inv_pre 9645
Flx_mulspec_mulii 10142
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri_inflate 11814
Flv_inv_inplace 12017
zl_Xp1_powu 12017
int_to_Flx 12217
init_invlaplace 12521
Flx_halve 14026
Flx_halfres_split 20166
Flxq_autpow_msqr 20696
Flxq_sqrtn_spec_pre 21914
FlxM_eval_powers_pre 22302
Flxq_sqrtn 23108
Flx_invBarrett_Newton 23252
ZM_unpack_FlxM 23421
Flxq_lroot_pre 25053
zlx_translate1 25259
FlxM_Flx_mul2 26382
Flx_Laplace 27482
Flx_composedsum 27697
FlxV_composedsum 28990
Flx_mod_Xn1 31633
FlxV_Flc_mul 34482
Fl_Flxq_log 35577
Flxq_sqrtl_spec_pre 37674
Flxq_sumautsum_msqr 40869
kron_unpack_Flx 42785
Flxq_minpoly 45944
FlxM_pack_ZM 46835
Flxq_autpow_sqr 47278
Flv_inv_indir 52212
kron_pack_Flx_spec 53168
Flx_Newton 54389
Flx_invLaplace 54657
Flxn_div 56623
Flxn_div_pre 56634
ZM_unpack_FlxM_bits 58170
Fl2_sqrt_pre 65848
get_Flxq_field 68902
set_Flxq 68922
_Flxq_equal0 69139
Flxq_autpow_pre 69428
Flx_to_FlxX 71405
Flx_is_smooth 74256
Flxn_mul 75987
Fl2_sqrtn_pre 76130
FlxM_mul_Kronecker_i 81591
FlxqM_mul_Kronecker 81591
FlxqM_red_pre 81591
Flx_matFrobenius_pre 86555
Flx_Frobenius 86619
Flxq_order 97322
Flxq_autsum_pre 98579
Flx_mulspec_quartmulii 98864
FlxC_to_ZXC 104060
Flv_Flm_polint 104560
Flxq_autsum_sqr 104900
int_to_Flx_quart 109082
Flxn_expint 109547
Flx_fromNewton 109550
Flxq_autsum_mul 112115
FlxqV_dotproduct_pre 113589
Flxq_lroot_fast_pre 113589
_Fl2_rand 113921
FlxM_pack_ZM_bits 116259
Flx_is_smooth_pre 119167
Flx_extgcd_halfgcd 126127
Flx_is_smooth_squarefree 127426
Flx_invBarrett_basecase 134453
Flx_splitting 147382
Flx_Fl_sub 151828
Flv_invVandermonde 153445
Flx_invBarrett_pre 159004
Flx_inflate 160694
Flxq_log 164217
Flxq_matrix_pow_pre 170646
FlxV_to_Flm 171866
Fl2_inv_pre 197355
Flx_to_int_quartspec 207946
Flxq_sumautsum_pre 210702
Flxn_recip 218063
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_powers 232114
FlxqC_red_pre 234855
get_Flxq_star 283453
Flx_mulspec_mulii_inflate 294066
FlxT_red 294683
Flxq_sumautsum_sqr 295253
Z_mod2BIL_Flx 305880
Z_mod2BIL_Flx_2 308810
FlxC_eval_powers_pre 325152
Flxq_inv 335783
Flx_addmulmul 360110
_Flxq_neg 366572
Flx_sqr 370252
_Flxq_add 389834
bounded_order 394032
FlxV_to_FlxX 397987
Flxq_issquare 404606
Flx_deflate 421333
Flx_integXn 423402
Flxq_norm 443261
Fl2_equal1 449972
Flx_to_int_halfspec 468590
Flxq_powu 488498
int_to_Flx_half 507058
Flxq_easylog 519467
Flxn_mulhigh 527581
Flx_blocks 527655
Flx_triple 551294
Flx_eval2BILspec 603335
Flx_divrem_Barrett 609983
FlxV_to_ZXV 610602
Flxq_auttrace_sqr 652667
Flx_diff1 660677
Flx_translate1 663340
Flxq_invsafe 670720
_Fl2_pow 671882
Fl2_pow_pre 671897
Flx_sqrspec_Kronecker 672009
Flx_translate1_basecase 675422
kron_pack_Flx_spec_half 688104
translate_basecase 688592
Flxq_auttrace_mul 779918
Flx_Flxq_eval 791491
Flxq_minpoly_pre 809799
Flv_roots_to_pol 842043
Flx_extgcd 859519
Flx_halfgcd_pre 873436
Flx_subspec 904271
Flx_divrem_Barrettspec 911777
Flxq_pow 933282
monomial_Flx 941574
Flx_mulhigh_i 950080
Flxq_auttrace_pre 960724
Flx_halfgcd_all_i 1088602
Flx_halfgcd_all_pre 1088605
Flx_halfres_basecase 1095859
Flx_halfres_i 1116027
Flxq_div 1167600
Flx_double 1179459
_Flxq_rmul 1461838
Flv_polint 1485468
_Flxq_red 1550928
Rg_to_F2 1715128
Flv_inv 1744748
Flv_producttree 1745952
Flxq_transmul_init 1746844
Flv_inv_i 1756760
Flx_Flv_multieval_tree 1786253
Flx_neg_inplace 1799912
Flx_red 1881789
_Fl2_mul 1925915
Flx_lgrenormalizespec 2148720
RgX_to_Flx 2210275
Flxq_div_pre 2313669
Flx_Flxq_eval_pre 2445042
FlvV_polint_tree 2587599
random_Flx 2647010
Flxq_sqr 2763490
FlxV_to_ZXV_inplace 3032564
Rg_to_Flxq 3465650
Flx_addshift 3768888
ZXT_to_FlxT 3798579
Flx_negspec 4175670
Flx_neg 4175683
Flxq_inv_pre 4183824
Flxq_transmul 4213598
Flx_val 4471924
Flx_resultant 4609921
Flx_mod_Xnm1 4907402
_Fl2_sqr 4915409
Fl2_sqr_pre 4915417
Flxn_mul_pre 5184574
Flx_Fl2_eval_pre 5214706
Flxq_invsafe_pre 5334773
kron_unpack_Flx_bits_narrow 5642151
kron_unpack_Flx_bits_wide 5698147
Flx_extgcd_basecase 6194262
Flx_extgcd_pre 6194276
Flxn_red 6368733
zx_to_Flx 6406139
Flx_recipspec 7301983
Flx_addspec 7339173
Flx_mulspec_Kronecker 7385172
Z_to_Flx 7610031
maxbitcoeffpol 8493293
Flx_is_squarefree 9221271
Flx_Fl_mul 9423157
Flx_Fl_add 9843882
_Flx_mul 11771689
Flx_Fl_mul_to_monic 11863476
Flx_blocks_Flm 12973457
FlxV_to_Flm_lg 12974212
Flx_FlxqV_eval_pre 13172969
Flx_Frobenius_pre 13828090
Flx_resultant_basecase_pre 14475888
Flx_resultant_pre 14477993
Flx_get_red 14515687
Fl2_mul_pre 17094261
Flxq_mul 18080034
Flv_inv_pre_inplace 19383986
Flx_Fl_mul_pre 20216850
Flx_eval 20419134
kron_pack_Flx_spec_bits 21036031
Flv_inv_pre_indir 21113273
Fl_to_Flx 21935894
_Flxq_pow 21959537
Flxq_pow_Frobenius 21966946
_Flxq_one 22456727
Flxq_powers_pre 22458678
Flx_deriv 22906006
_Flxq_powu_i 22941992
Flxq_pow_pre 23015584
Flxq_powu_pre 24196868
Flv_to_Flx 25497612
Flx_equal 25787280
Flx_mul 26768256
Flx_shift 27409492
mkF2 27674521
Flx_valrem 28466027
Flx_divrem 30471360
Flx_gcd 35049145
Flx_div_by_X_x 36567080
Flx_to_ZX_inplace 36587777
Flx_to_ZX 38409956
Flx_rem 42225300
Flx_eval_powers_pre 48542405
Flx_divrem_basecase 61310317
Flx_normalize 64816822
Flx_to_Flv 66674632
set_Flxq_pre 68967118
Rg_to_Fl 73090785
Flx_add 73793641
Flx_divrem_pre 78753093
Flx_gcd_basecase 85848976
Flx_gcd_pre 87513164
Flx_get_red_pre 96727516
Fl2_norm_pre 97118626
Flx_eval_pre 136177574
Flx_sub 136783180
_Flxq_mul 146086278
ZX_to_Flx 171167003
Flxq_mul_pre 190615572
_Flxq_sqr 266724723
Flxq_sqr_pre 273064509
Flx_sqrspec_basecase 273440589
Flx_sqr_pre 274059580
Flx_sqrspec 274169098
Flx_mulspec_basecase 345816488
Flx_mul_pre 380083829
Flx_mulspec 385724153
Flx_shiftip 628173284
Flx_rem_basecase 796403437
Flx_rem_pre 922454693
get_Flx_red 985510076
Flx_mullimb 1185013262
Flx_renormalize 2161376103
get_Fl_threshold 2313846212
Flx_mullimb_ok 3338152741

Generated by: LCOV version 1.16