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 30831-19b50a36d0) Lines: 2553 2925 87.3 %
Date: 2026-04-20 09:27:00 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 1117
Flxq_autpowers 1667
FlxqX_dotproduct 1918
Flx_sqrspec_sqri 2070
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 3980
Flxq_pow_table_pre 4392
Flxq_trace 4724
Flx_FlxqV_eval 5082
Flx_mulspec_halfmulii 5463
_Flxq_s 6567
_Flxq_rand 6581
Flx_FlxM_qmul 6927
FlxM_mul2 7099
gener_Flxq 7201
Flx_is_l_pow 8145
Flx_halfres_update_pre 9405
_Flxq_inv 9460
Flv_inv_pre 9644
Flx_mulspec_mulii 10146
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri_inflate 11814
Flv_inv_inplace 12017
zl_Xp1_powu 12017
int_to_Flx 12217
init_invlaplace 12514
Flx_halve 14026
Flx_halfres_split 19963
Flxq_autpow_msqr 20698
Flxq_sqrtn_spec_pre 21901
FlxM_eval_powers_pre 22301
Flxq_sqrtn 23095
Flx_invBarrett_Newton 23160
ZM_unpack_FlxM 23421
Flxq_lroot_pre 25053
zlx_translate1 25259
FlxM_Flx_mul2 25998
Flx_Laplace 27496
Flx_composedsum 27697
FlxV_composedsum 28990
Flx_mod_Xn1 31627
FlxV_Flc_mul 34480
Fl_Flxq_log 35563
Flxq_sqrtl_spec_pre 37667
Flxq_sumautsum_msqr 40869
kron_unpack_Flx 42785
Flxq_minpoly 45937
FlxM_pack_ZM 46835
Flxq_autpow_sqr 47250
Flv_inv_indir 52212
kron_pack_Flx_spec 53168
Flx_Newton 54385
Flx_invLaplace 54659
Flxn_div 56604
Flxn_div_pre 56626
ZM_unpack_FlxM_bits 58170
Fl2_sqrt_pre 65848
get_Flxq_field 68902
set_Flxq 68922
_Flxq_equal0 69139
Flxq_autpow_pre 69418
Flx_to_FlxX 71405
Flx_is_smooth 74256
Flxn_mul 75989
Fl2_sqrtn_pre 76081
FlxM_mul_Kronecker_i 81591
FlxqM_mul_Kronecker 81591
FlxqM_red_pre 81591
Flx_matFrobenius_pre 86554
Flx_Frobenius 86619
Flx_mulspec_quartmulii 97166
Flxq_order 97322
Flxq_autsum_pre 98572
FlxC_to_ZXC 104060
Flv_Flm_polint 104560
Flxq_autsum_sqr 104886
int_to_Flx_quart 107385
Flxn_expint 109547
Flx_fromNewton 109549
Flxq_autsum_mul 112087
FlxqV_dotproduct_pre 113589
Flxq_lroot_fast_pre 113589
_Fl2_rand 113886
FlxM_pack_ZM_bits 116259
Flx_is_smooth_pre 118266
Flx_extgcd_halfgcd 126089
Flx_is_smooth_squarefree 126363
Flx_invBarrett_basecase 134410
Flx_splitting 147777
Flx_Fl_sub 151685
Flv_invVandermonde 153444
Flx_invBarrett_pre 158871
Flx_inflate 160718
Flxq_log 164210
Flxq_matrix_pow_pre 170639
FlxV_to_Flm 171860
Fl2_inv_pre 197364
Flx_to_int_quartspec 204550
Flxq_sumautsum_pre 210695
Flxn_recip 218063
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_powers 232118
FlxqC_red_pre 234855
get_Flxq_star 283433
Flx_mulspec_mulii_inflate 294049
Flxq_sumautsum_sqr 295218
FlxT_red 298182
Z_mod2BIL_Flx 305863
Z_mod2BIL_Flx_2 308793
FlxC_eval_powers_pre 325146
Flxq_inv 335787
Flx_addmulmul 359008
_Flxq_neg 366572
Flx_sqr 370324
_Flxq_add 389834
bounded_order 394028
FlxV_to_FlxX 397987
Flxq_issquare 404606
Flx_deflate 421305
Flx_integXn 423304
Flxq_norm 443243
Fl2_equal1 449955
Flx_to_int_halfspec 468590
Flxq_powu 488356
int_to_Flx_half 507058
Flxq_easylog 519440
Flxn_mulhigh 527458
Flx_blocks 527573
Flx_triple 551294
Flx_eval2BILspec 603301
Flx_divrem_Barrett 605729
FlxV_to_ZXV 609488
Flxq_auttrace_sqr 652378
Flx_diff1 660432
Flx_translate1 663088
Flx_sqrspec_Kronecker 670349
Flxq_invsafe 670381
_Fl2_pow 671774
Fl2_pow_pre 671793
Flx_translate1_basecase 675157
kron_pack_Flx_spec_half 688104
translate_basecase 688339
Flxq_auttrace_mul 779657
Flx_Flxq_eval 791458
Flxq_minpoly_pre 809781
Flv_roots_to_pol 842074
Flx_extgcd 857821
Flx_halfgcd_pre 873176
Flx_subspec 899241
Flx_divrem_Barrettspec 906787
Flxq_pow 933165
monomial_Flx 941313
Flx_mulhigh_i 949829
Flxq_auttrace_pre 960243
Flx_halfgcd_all_i 1087604
Flx_halfgcd_all_pre 1087605
Flx_halfres_basecase 1094681
Flx_halfres_i 1114649
Flxq_div 1167600
Flx_double 1179459
_Flxq_rmul 1461838
Flv_polint 1485442
_Flxq_red 1550928
Rg_to_F2 1715205
Flv_inv 1744731
Flv_producttree 1745936
Flxq_transmul_init 1746315
Flv_inv_i 1756735
Flx_Flv_multieval_tree 1786234
Flx_neg_inplace 1799550
Flx_red 1884842
_Fl2_mul 1924544
Flx_lgrenormalizespec 2135980
RgX_to_Flx 2209606
Flxq_div_pre 2313669
Flx_Flxq_eval_pre 2444871
FlvV_polint_tree 2587712
random_Flx 2646256
Flxq_sqr 2763468
FlxV_to_ZXV_inplace 3032443
Rg_to_Flxq 3461437
Flx_addshift 3768149
ZXT_to_FlxT 3799050
Flx_negspec 4176554
Flx_neg 4176564
Flxq_inv_pre 4183784
Flxq_transmul 4212193
Flx_val 4460795
Flx_resultant 4609452
Flx_mod_Xnm1 4908509
Fl2_sqr_pre 4909922
_Fl2_sqr 4910046
Flxn_mul_pre 5182721
Flx_Fl2_eval_pre 5214706
Flxq_invsafe_pre 5326749
kron_unpack_Flx_bits_narrow 5626742
kron_unpack_Flx_bits_wide 5695645
Flx_extgcd_pre 6184551
Flx_extgcd_basecase 6184569
Flxn_red 6366803
zx_to_Flx 6389156
Flx_recipspec 7289981
Flx_addspec 7337710
Flx_mulspec_Kronecker 7369627
Z_to_Flx 7593714
maxbitcoeffpol 8474633
Flx_is_squarefree 9207451
Flx_Fl_mul 9423584
Flx_Fl_add 9847965
_Flx_mul 11778136
Flx_Fl_mul_to_monic 11860822
Flx_blocks_Flm 12970555
FlxV_to_Flm_lg 12971485
Flx_FlxqV_eval_pre 13169973
Flx_Frobenius_pre 13817134
Flx_resultant_basecase_pre 14474315
Flx_resultant_pre 14476755
Flx_get_red 14505845
Fl2_mul_pre 17092884
Flxq_mul 18079975
Flv_inv_pre_inplace 19298681
Flx_Fl_mul_pre 20197923
Flx_eval 20416590
kron_pack_Flx_spec_bits 21003096
Flv_inv_pre_indir 21024631
Fl_to_Flx 21938405
_Flxq_one 22437254
Flxq_powers_pre 22439774
Flx_deriv 22889476
_Flxq_powu_i 22927939
_Flxq_pow 23291817
Flxq_pow_Frobenius 23299224
Flxq_powu_pre 24181072
Flxq_pow_pre 24347756
Flv_to_Flx 25490702
Flx_mul 26712873
Flx_equal 27115628
Flx_shift 27401649
mkF2 27666487
Flx_valrem 28464883
Flx_divrem 30449545
Flx_gcd 35037450
Flx_to_ZX_inplace 36546048
Flx_div_by_X_x 36585756
Flx_to_ZX 38382584
Flx_rem 42212514
Flx_eval_powers_pre 48458974
Flx_divrem_basecase 61231972
Flx_normalize 64801535
Flx_to_Flv 66649597
set_Flxq_pre 70260354
Rg_to_Fl 73084625
Flx_add 73810863
Flx_divrem_pre 78664074
Flx_gcd_basecase 85781630
Flx_gcd_pre 87455088
Fl2_norm_pre 97118578
Flx_get_red_pre 98006254
Flx_eval_pre 136138963
Flx_sub 136554674
_Flxq_mul 148676550
ZX_to_Flx 171051006
Flxq_mul_pre 193107384
_Flxq_sqr 267722163
Flxq_sqr_pre 273902789
Flx_sqr_pre 274872704
Flx_sqrspec 275209021
Flx_sqrspec_basecase 275276346
Flx_mulspec_basecase 348418150
Flx_mul_pre 382382606
Flx_mulspec 388079101
Flx_shiftip 632195084
Flx_rem_basecase 800275710
Flx_rem_pre 926011430
get_Flx_red 988930759
Flx_mullimb 1185347813
Flx_renormalize 2169491272
get_Fl_threshold 2324839747
Flx_mullimb_ok 3381901788

Generated by: LCOV version 1.16