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:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

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 - F2x.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30622-caa25a75db) Lines: 1536 1838 83.6 % Date: 2026-01-22 09:18:00 Functions: 191 214 89.3 % Legend: Lines: hit not hit

Function Name	Hit count
F2xC_to_FlxC	0
F2xXV_to_F2xM	0
F2xX_F2x_add	0
F2xX_to_F2xC	0
F2xXn_red	0
F2xY_F2xq_evalx	0
F2x_deflate	0
F2x_recip	0
F2x_recip_raw	0
F2xqXM_F2xqX_mul2	0
F2xqXM_mul2	0
F2xqX_F2xqXM_qmul	0
F2xqX_addmulmul	0
F2xqX_extgcd_halfgcd	0
F2xqX_halfgcd	0
F2xqX_halfres	0
F2xqX_halfres_split	0
F2xqX_halfres_update	0
F2xqX_invBarrett_basecase	0
F2xqX_powu	0
_F2xqX_sqr	0
matJ2_F2xXM	0
matid2_F2xXM	0
F2xqV_roots_to_deg1	7
F2xqV_roots_to_pol	7
F2xqXQ_inv	7
F2xqXQ_invsafe	7
F2xqXQ_pow	7
F2xqXV_prod	7
F2xqX_halfgcd_all	7
F2xqX_halfgcd_all_i	7
F2xqX_halfres_basecase	7
F2xqX_halfres_i	7
F2xq_conjvec	7
_F2xqXQ_zero	7
F2xqX_disc	14
F2xqX_extgcd	14
F2xqX_extgcd_basecase	14
F2xq_log_Coppersmith	14
F2xq_log_index	14
F2xq_pow_init	14
check_kernel	14
smallirred_F2x	14
F2xqX_resultant	21
F2xqX_resultant_basecase	21
F2xn_div1	28
F2xn_inv	28
F2xq_log_Coppersmith_rec	28
F2x_recip1	42
F2xn_div	42
F2xn_inv1	42
F2xn_inv_basecase1	42
F2xqX_invBarrett	45
F2xqX_invBarrett_Newton	45
F2xn_mul	46
F2xq_powu	49
F2xX_to_FlxX	56
F2xqXQV_red	63
F2xq_log_find_rel	65
monomial_F2x	70
F2xq_log_from_rel	71
F2xn_red	83
F2xq_log_Coppersmith_d	95
F2x_mulspec_mulii	132
int_to_F2x	132
gener_F2xq	161
F2x_degreespec	264
F2x_to_int	264
F2x_to_F2xX	378
FlxXC_to_F2xXC	394
F2xq_order	399
_F2xq_inv	413
polx_F2xX	439
_F2xq_s	693
_F2xq_neg	798
_F2xqX_mul	882
FlxX_to_F2xX	908
F2x_halfgcd	960
F2x_halfgcd_i	960
_F2xq_equal0	973
F2x_shiftneg	1108
F2xXC_to_ZXXC	1119
F2xX_addspec	1186
F2xqX_divrem_Barrett	1186
F2xqX_divrem_Barrettspec	1189
RgX_to_F2x	1400
F2xX_to_ZXX	1430
get_F2xq_field	1701
F2xq_log_Coppersmith_worker	2045
F2xX_recipspec	2423
F2xqXQ_auttrace	2723
random_F2xqX	2842
F2xqX_mulspec	3019
F2xX_lgrenormalizespec	3337
F2xC_to_ZXC	3842
F2xqXQ_auttrace_sqr	4893
ZXX_to_F2xX	4968
F2xq_pow_table	5244
F2xX_to_Kronecker_spec	6038
F2xqX_F2xq_mul	6993
F2xqXQ_auttrace_mul	7182
F2xqXQ_powers	7712
F2xq_sqrtn	8324
_F2xq_rand	9639
F2x_eval	13370
F2xqX_F2xqXQV_eval	14413
F2xq_autpow_mul	14690
F2x_factorel	15004
_F2xq_rmul	15890
FlxC_to_F2xC	16519
F2x_is_x	19245
F2xq_autpow	19252
mkF2	27006
F2xq_autpow_sqr	29318
F2xV_to_FlxV_inplace	32615
F2x_valrem	32787
F2xqX_divrem	33217
F2xqXQ_autpow_mul	33243
_F2xqXQ_sqr	33250
F2x_issquare	35483
F2xq_sqrt	38705
F2x_F2xq_eval	44735
F2x_addshift	46908
F2x_even_odd	61298
F2xq_sqrt_fast	61298
F2xqXQ_autpow	70432
F2x_addspec	73287
F2xX_deriv	80463
F2xqXQ_autpow_sqr	88807
F2xqXQ_sqr	104277
F2xqX_sqr	105348
_F2xqXQ_mul	114184
F2xqXQ_mul	114240
F2xqX_F2xqXQ_eval	122050
F2x_to_Flx	130351
F2xY_F2xqV_evalx	136414
rel_Coppersmith	147421
Flx_to_F2x	151818
F2xqX_mul	155228
Kronecker_to_F2xqX	158247
F2xqX_gcd_basecase	169357
F2xqX_gcd	169742
F2x_pow2n	175467
F2x_1_add	189927
F2xqX_F2xq_mul_to_monic	205983
F2xqX_normalize	205997
F2xY_degreex	206443
F2xq_Artin_Schreier	211610
Z_to_F2x	213088
F2x_get_red	218645
F2xqX_get_red	219967
F2x_sqrt	232997
F2xq_matrix_pow	233596
F2xV_to_F2m	233598
F2x_matFrobenius	233598
F2x_is_smooth	236530
_F2xq_zero	259292
F2x_is_smooth_squarefree	271772
F2x_shiftpos	274777
F2x_shift	275881
F2xX_to_Kronecker	310456
_F2xqXQ_add	345030
_F2xqXQ_red	351244
F2xq_powers	362828
_F2xqXQ_one	374767
F2xX_add	423367
pol1_F2xX	446179
F2xq_trace	456809
F2xX_F2x_mul	481486
_F2xqXQ_cmul	481486
F2xq_log	541004
F2xqX_divrem_basecase	545205
F2xq_easylog	556659
F2xq_div	558225
_F2xq_red	582165
F2x_F2xqV_eval	610480
F2x_Frobenius	637151
F2xqX_rem	750115
get_F2xqX_red	783332
_F2xq_one	923717
F2xqX_red	1004020
Rg_to_F2xq	1164228
_F2xq_sqr	1207107
F2x_to_ZX	1221050
F2x_deriv	1249364
F2xV_to_ZXV_inplace	1295492
F2x_to_F2v	1550753
F2x_slice	1609211
_F2xq_add	1691136
F2xq_inv	2038561
F2x_extgcd	2038568
F2xq_invsafe	2038568
_F2xq_cmul	2079044
_F2xq_mul	2178596
_F2xq_pow	2386727
F2xq_pow	2429984
F2xX_renormalize	2711078
ZX_to_F2x	3000011
F2x_gcd	3797095
F2x_mulspec_basecase	3819686
F2xq_sqr	8714518
F2x_sqr	9060478
F2xq_mul	10042834
F2x_divrem	11655834
F2x_mul1	20080941
F2x_shiftip	23933066
F2x_mul	28341669
F2x_mulspec	28405811
F2x_add	30999113
F2x_rem	48891261
F2x_degree	80258711
F2x_addshiftip	135581211
F2x_addshiftipspec	163190220
F2x_degree_lg	267617776

Generated by: LCOV version 1.16