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 30674-be81ecfdd4) Lines: 2553 2925 87.3 %
Date: 2026-02-10 09:23:17 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 2069
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_powu_pre 3875
_Flx_composedsum 3882
Flxq_pow_table_pre 4393
Flxq_trace 4696
Flx_FlxqV_eval 5082
Flx_mulspec_halfmulii 5463
_Flxq_s 6567
_Flxq_rand 6578
Flx_FlxM_qmul 6927
FlxM_mul2 7099
gener_Flxq 7201
Flx_is_l_pow 8122
Flx_halfres_update_pre 9405
_Flxq_inv 9460
Flv_inv_pre 9644
Flx_mulspec_mulii 10140
Flx_sqrspec_quartsqri 10218
Flx_Fl2_eval_pre 10773
Flx_sqrspec_sqri_inflate 11814
Flv_inv_inplace 12017
zl_Xp1_powu 12017
int_to_Flx 12213
init_invlaplace 12514
Flx_halve 14026
Flx_diff1 14399
Flx_translate1 17060
Flx_halfres_split 19963
Flxq_autpow_msqr 20698
Flxq_sqrtn_spec_pre 21900
FlxM_eval_powers_pre 22302
Flxq_sqrtn 23093
Flx_invBarrett_Newton 23161
ZM_unpack_FlxM 23421
Flxq_lroot_pre 25053
zlx_translate1 25259
FlxM_Flx_mul2 26000
Flx_Laplace 27353
Flx_composedsum 27558
FlxV_composedsum 28956
Flx_translate1_basecase 29149
Flx_mod_Xn1 31509
FlxV_Flc_mul 34482
Fl_Flxq_log 35555
Flxq_sqrtl_spec_pre 37666
Flxq_sumautsum_msqr 40915
translate_basecase 42318
kron_unpack_Flx 42785
Flxq_minpoly 45937
FlxM_pack_ZM 46835
Flxq_autpow_sqr 47317
Flv_inv_indir 52214
kron_pack_Flx_spec 53168
Flx_Newton 54109
Flx_invLaplace 54380
Flxn_div 56347
Flxn_div_pre 56354
ZM_unpack_FlxM_bits 58160
Fl2_sqrt_pre 65849
get_Flxq_field 68902
set_Flxq 68922
_Flxq_equal0 69139
Flxq_autpow_pre 69449
Flx_to_FlxX 71405
Flx_is_smooth 74256
Flxn_mul 75836
Fl2_sqrtn_pre 76178
FlxM_mul_Kronecker_i 81581
FlxqM_mul_Kronecker 81581
FlxqM_red_pre 81581
Flx_matFrobenius_pre 86567
Flx_Frobenius 86619
Flx_mulspec_quartmulii 97161
Flxq_order 97328
Flxq_autsum_pre 98768
FlxC_to_ZXC 104060
Flv_Flm_polint 104562
Flxq_autsum_sqr 105110
int_to_Flx_quart 107384
Flx_fromNewton 109397
Flxn_expint 109399
Flxq_autsum_mul 112472
FlxqV_dotproduct_pre 113589
Flxq_lroot_fast_pre 113589
_Fl2_rand 114109
FlxM_pack_ZM_bits 116239
Flx_is_smooth_pre 117907
Flx_is_smooth_squarefree 126078
Fl2_norm_pre 127671
Flx_invBarrett_basecase 134390
Flx_extgcd_halfgcd 146656
Flx_splitting 147037
Flx_Fl_sub 151680
Flv_invVandermonde 153445
Flx_invBarrett_pre 158852
Flx_inflate 159995
Flxq_log 164210
Flxq_matrix_pow_pre 170659
FlxV_to_Flm 171883
Fl2_inv_pre 197580
Flx_to_int_quartspec 204544
Flxq_sumautsum_pre 210713
Flxn_recip 217432
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_powers 232012
FlxqC_red_pre 234845
Flxq_div 237891
get_Flxq_star 283437
FlxT_red 291545
Flx_mulspec_mulii_inflate 294049
Flxq_sumautsum_sqr 295314
Z_mod2BIL_Flx 305863
Z_mod2BIL_Flx_2 308793
FlxC_eval_powers_pre 325154
Flxq_inv 335767
Flx_sqr 354620
_Flxq_neg 366572
_Flxq_add 389834
bounded_order 395397
FlxV_to_FlxX 397977
Flxq_issquare 404492
Flx_addmulmul 416803
Flx_deflate 420775
Flx_integXn 422820
Flxq_norm 443128
Fl2_equal1 450636
Flx_to_int_halfspec 468590
Flxq_powu 488340
int_to_Flx_half 507058
Flxq_easylog 519365
Flxn_mulhigh 526386
Flx_blocks 526437
Flx_eval2BILspec 603301
Flx_divrem_Barrett 603876
FlxV_to_ZXV 606840
Flxq_auttrace_sqr 652697
Flxq_invsafe 670467
_Fl2_pow 672701
Fl2_pow_pre 672712
kron_pack_Flx_spec_half 688104
Flx_sqrspec_Kronecker 695043
Flxq_auttrace_mul 779980
Flx_Flxq_eval 791322
Flxq_minpoly_pre 809688
Flv_roots_to_pol 842078
Flx_extgcd 856783
Flx_halfgcd_pre 873223
Flx_subspec 897777
Flx_divrem_Barrettspec 905322
monomial_Flx 941304
Flxq_pow 948256
Flx_mulhigh_i 948601
Flxq_auttrace_pre 959926
Flx_triple 1049261
Flx_halfgcd_all_i 1126820
Flx_halfgcd_all_pre 1126822
Flx_halfres_basecase 1133898
Flx_halfres_i 1153864
_Flxq_rmul 1461838
Flv_polint 1485177
_Flxq_red 1550928
Rg_to_F2 1710078
Flv_inv 1744457
Flv_producttree 1745659
Flxq_transmul_init 1746421
Flv_inv_i 1756464
Flx_neg_inplace 1780025
Flx_Flv_multieval_tree 1785964
Flx_red 1877684
_Fl2_mul 1928290
Fl2_mul_pre 1957329
Flx_lgrenormalizespec 2132882
RgX_to_Flx 2205413
Flxq_div_pre 2416846
Flx_double 2443925
Flx_Flxq_eval_pre 2444617
FlvV_polint_tree 2587487
random_Flx 2646060
Flxq_sqr 2763146
FlxV_to_ZXV_inplace 3031533
Flx_negspec 3263773
Flx_neg 3263790
Rg_to_Flxq 3588285
Flx_addshift 3729093
ZXT_to_FlxT 3812337
Flxq_transmul 4212692
Flxq_inv_pre 4286509
Flx_val 4463740
Flx_resultant 4731804
Flx_mod_Xnm1 4907267
Fl2_sqr_pre 4921304
_Fl2_sqr 4921323
Flxn_mul_pre 5181660
Flxq_invsafe_pre 5429560
kron_unpack_Flx_bits_narrow 5661238
kron_unpack_Flx_bits_wide 5669392
Flx_extgcd_basecase 6286326
Flx_extgcd_pre 6286331
Flxn_red 6364422
zx_to_Flx 6390813
Flx_addspec 7259598
Flx_recipspec 7287127
Flx_Fl_mul 7327216
mkF2 7339705
Flx_mulspec_Kronecker 7353197
Z_to_Flx 7556598
maxbitcoeffpol 8481747
Flx_is_squarefree 9180931
Flx_Fl_add 9844559
_Flx_mul 11785301
Flx_Fl_mul_to_monic 11856163
Flx_blocks_Flm 12968361
FlxV_to_Flm_lg 12968767
Flx_FlxqV_eval_pre 13167574
Flxq_mul 13192560
Flx_Frobenius_pre 13813269
Flx_get_red 14504126
Flx_resultant_basecase_pre 14596875
Flx_resultant_pre 14598827
Flx_Fl_mul_pre 18290470
Flv_inv_pre_inplace 19325750
Flx_eval 20434385
kron_pack_Flx_spec_bits 20993745
Flv_inv_pre_indir 21056934
Fl_to_Flx 21953352
Flxq_powers_pre 22437255
_Flxq_one 22437478
_Flxq_powu_i 22922333
Flx_deriv 22980821
_Flxq_pow 23402046
Flxq_pow_Frobenius 23409453
Flxq_powu_pre 24176718
Flxq_pow_pre 24472891
Flv_to_Flx 25487460
Flx_shift 27400607
Flx_mul 27786790
Flx_equal 27961542
Flx_valrem 28502816
Flx_divrem 30446708
Flx_gcd 35019118
Flx_to_ZX_inplace 36548156
Flx_div_by_X_x 36583095
Flx_to_ZX 38300408
Flx_rem 42226761
Flx_eval_powers_pre 48497841
Flx_divrem_basecase 62278975
Flx_normalize 64828436
Flx_add 66134419
Flx_to_Flv 66649620
set_Flxq_pre 70387960
Rg_to_Fl 72937357
Flx_divrem_pre 79721788
Flx_gcd_basecase 85779273
Flx_gcd_pre 87434791
Flx_get_red_pre 98141464
Flx_eval_pre 136185836
Flx_sub 138644017
_Flxq_mul 148949797
ZX_to_Flx 170996385
Flxq_mul_pre 190155923
_Flxq_sqr 268581330
Flxq_sqr_pre 276441645
Flx_sqrspec_basecase 276667060
Flx_sqr_pre 277402399
Flx_sqrspec 277486169
Flx_mulspec_basecase 349301927
Flx_mul_pre 381462784
Flx_mulspec 387039475
Flx_shiftip 635116495
Flx_rem_basecase 801987201
Flx_rem_pre 926047278
get_Flx_red 990056289
Flx_mullimb 1186886988
Flx_renormalize 2159056421
get_Fl_threshold 2336854699
Flx_mullimb_ok 3406730184

Generated by: LCOV version 1.16