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 30603-c72b2decfc) Lines: 2553 2925 87.3 %
Date: 2026-01-07 09:21:48 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 135
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_composedsum 3882
Flx_powu_pre 3996
Flxq_pow_table_pre 4392
Flxq_trace 4696
Flx_FlxqV_eval 5082
Flx_mulspec_halfmulii 5463
_Flxq_rand 6549
_Flxq_s 6567
Flx_FlxM_qmul 6927
FlxM_mul2 7099
gener_Flxq 7201
Flx_is_l_pow 8091
Flx_halfres_update_pre 9405
_Flxq_inv 9460
Flv_inv_pre 9644
Flx_mulspec_mulii 10138
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 12216
init_invlaplace 12514
Flx_halve 14026
Flx_diff1 14446
Flx_translate1 17106
Flx_halfres_split 19964
Flxq_autpow_msqr 20696
Flxq_sqrtn_spec_pre 21901
FlxM_eval_powers_pre 22302
Flxq_sqrtn 23095
Flx_invBarrett_Newton 23160
ZM_unpack_FlxM 23421
Flxq_lroot_pre 25053
zlx_translate1 25259
FlxM_Flx_mul2 26000
Flx_Laplace 27343
Flx_composedsum 27547
FlxV_composedsum 28971
Flx_translate1_basecase 29200
Flx_mod_Xn1 31508
FlxV_Flc_mul 34482
Fl_Flxq_log 35535
Flxq_sqrtl_spec_pre 37667
Flxq_sumautsum_msqr 40915
translate_basecase 42365
kron_unpack_Flx 42785
Flxq_minpoly 45937
FlxM_pack_ZM 46835
Flxq_autpow_sqr 47313
Flv_inv_indir 52216
kron_pack_Flx_spec 53168
Flx_Newton 54105
Flx_invLaplace 54359
Flxn_div 55188
Flxn_div_pre 55199
ZM_unpack_FlxM_bits 58160
Fl2_sqrt_pre 65849
get_Flxq_field 68902
set_Flxq 68922
_Flxq_equal0 69139
Flxq_autpow_pre 69448
Flx_to_FlxX 71405
Flx_is_smooth 74256
Flxn_mul 75848
Fl2_sqrtn_pre 76065
FlxM_mul_Kronecker_i 81581
FlxqM_mul_Kronecker 81581
FlxqM_red_pre 81581
Flx_matFrobenius_pre 86566
Flx_Frobenius 86619
Flx_mulspec_quartmulii 97166
Flxq_order 97328
Flxq_autsum_pre 98768
FlxC_to_ZXC 104060
Flv_Flm_polint 104558
Flxq_autsum_sqr 105110
int_to_Flx_quart 107385
Flx_fromNewton 109401
Flxn_expint 109401
Flxq_autsum_mul 112472
FlxqV_dotproduct_pre 113589
Flxq_lroot_fast_pre 113589
_Fl2_rand 113831
FlxM_pack_ZM_bits 116239
Flx_is_smooth_pre 117612
Flx_is_smooth_squarefree 125713
Fl2_norm_pre 127605
Flx_invBarrett_basecase 134389
Flx_extgcd_halfgcd 146650
Flx_splitting 147894
Flx_Fl_sub 151682
Flv_invVandermonde 153445
Flx_invBarrett_pre 158849
Flx_inflate 160538
Flxq_log 164210
Flxq_matrix_pow_pre 170665
FlxV_to_Flm 171888
Fl2_inv_pre 197277
Flx_to_int_quartspec 204550
Flxq_sumautsum_pre 210713
Flxn_recip 217364
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_powers 232033
FlxqC_red_pre 234845
Flxq_div 237864
get_Flxq_star 283439
Flx_mulspec_mulii_inflate 294045
Flxq_sumautsum_sqr 295314
FlxT_red 299242
Z_mod2BIL_Flx 305859
Z_mod2BIL_Flx_2 308789
FlxC_eval_powers_pre 325154
Flxq_inv 335766
Flx_sqr 354774
_Flxq_neg 366572
_Flxq_add 389834
bounded_order 395373
FlxV_to_FlxX 397977
Flxq_issquare 404492
Flx_addmulmul 416799
Flx_deflate 420768
Flx_integXn 422742
Flxq_norm 443140
Fl2_equal1 449692
Flx_to_int_halfspec 468589
Flxq_powu 488340
int_to_Flx_half 507058
Flxn_mulhigh 516921
Flx_blocks 516999
Flxq_easylog 519356
Flx_eval2BILspec 603293
Flx_divrem_Barrett 605984
FlxV_to_ZXV 606762
Flxq_auttrace_sqr 652735
Flxq_invsafe 670208
_Fl2_pow 671469
Fl2_pow_pre 671482
kron_pack_Flx_spec_half 688104
Flx_sqrspec_Kronecker 695142
Flxq_auttrace_mul 780054
Flx_Flxq_eval 791332
Flxq_minpoly_pre 809622
Flv_roots_to_pol 841907
Flx_extgcd 856690
Flx_halfgcd_pre 873120
Flx_subspec 899815
Flx_divrem_Barrettspec 907358
Flx_mulhigh_i 938668
monomial_Flx 941188
Flxq_pow 948231
Flxq_auttrace_pre 959838
Flx_triple 1049261
Flx_halfgcd_all_i 1126770
Flx_halfgcd_all_pre 1126773
Flx_halfres_basecase 1133844
Flx_halfres_i 1153813
_Flxq_rmul 1461838
Flv_polint 1485235
_Flxq_red 1550928
Rg_to_F2 1710449
Flv_inv 1744512
Flv_producttree 1745718
Flxq_transmul_init 1746211
Flv_inv_i 1756526
Flx_neg_inplace 1777875
Flx_Flv_multieval_tree 1786022
Flx_red 1884459
_Fl2_mul 1923689
Fl2_mul_pre 1952739
Flx_lgrenormalizespec 2137172
RgX_to_Flx 2249938
Flxq_div_pre 2416818
Flx_double 2443925
Flx_Flxq_eval_pre 2444646
FlvV_polint_tree 2587205
random_Flx 2645842
Flxq_sqr 2763158
FlxV_to_ZXV_inplace 3031570
Flx_negspec 3265585
Flx_neg 3265591
Rg_to_Flxq 3588245
Flx_addshift 3724675
ZXT_to_FlxT 3814311
Flxq_transmul 4212450
Flxq_inv_pre 4286490
Flx_val 4467297
Flx_resultant 4733319
Flx_mod_Xnm1 4907232
_Fl2_sqr 4908543
Fl2_sqr_pre 4908550
Flxn_mul_pre 5159390
Flxq_invsafe_pre 5429267
kron_unpack_Flx_bits_narrow 5661823
kron_unpack_Flx_bits_wide 5668649
Flx_extgcd_basecase 6285951
Flx_extgcd_pre 6285958
Flxn_red 6330171
zx_to_Flx 6393303
Flx_addspec 7250880
Flx_recipspec 7290507
mkF2 7321168
Flx_Fl_mul 7327607
Flx_mulspec_Kronecker 7352112
Z_to_Flx 7556732
maxbitcoeffpol 8481562
Flx_is_squarefree 9180767
Flx_Fl_add 9842575
_Flx_mul 11767867
Flx_Fl_mul_to_monic 11854276
Flx_blocks_Flm 12966734
FlxV_to_Flm_lg 12967323
Flx_FlxqV_eval_pre 13166043
Flxq_mul 13192373
Flx_Frobenius_pre 13812054
Flx_get_red 14502651
Flx_resultant_basecase_pre 14597848
Flx_resultant_pre 14599990
Flx_Fl_mul_pre 18289377
Flv_inv_pre_inplace 19346288
Flx_eval 20434058
kron_pack_Flx_spec_bits 20992239
Flv_inv_pre_indir 21079336
Fl_to_Flx 21936135
_Flxq_one 22434101
Flxq_powers_pre 22434279
_Flxq_powu_i 22917951
Flx_deriv 22981407
_Flxq_pow 23160061
Flxq_pow_Frobenius 23167470
Flxq_powu_pre 24171831
Flxq_pow_pre 24230895
Flv_to_Flx 25486277
Flx_shift 27378287
Flx_equal 27715423
Flx_mul 27809222
Flx_valrem 28442427
Flx_divrem 30447234
Flx_gcd 35011555
Flx_div_by_X_x 36535737
Flx_to_ZX_inplace 36570770
Flx_to_ZX 38297969
Flx_rem 42228296
Flx_eval_powers_pre 48516718
Flx_divrem_basecase 62275072
Flx_normalize 64773371
Flx_add 66099987
Flx_to_Flv 66642310
set_Flxq_pre 70135310
Rg_to_Fl 73209011
Flx_divrem_pre 79715709
Flx_gcd_basecase 85760095
Flx_gcd_pre 87417939
Flx_get_red_pre 97885911
Flx_eval_pre 136183037
Flx_sub 138630575
_Flxq_mul 148344713
ZX_to_Flx 171014085
Flxq_mul_pre 189552047
_Flxq_sqr 267923795
Flxq_sqr_pre 275818939
Flx_sqrspec_basecase 276200002
Flx_sqr_pre 276779479
Flx_sqrspec 276903061
Flx_mulspec_basecase 348648429
Flx_mul_pre 380744615
Flx_mulspec 386329292
Flx_shiftip 633935040
Flx_rem_basecase 800811183
Flx_rem_pre 924817854
get_Flx_red 988817520
Flx_mullimb 1185474422
Flx_renormalize 2155605211
get_Fl_threshold 2332221040
Flx_mullimb_ok 3392260692

Generated by: LCOV version 1.16