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 - gen1.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30616-7aa4fb0184) Lines: 1865 1987 93.9 % Date: 2026-01-18 09:22:29 Functions: 105 105 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
Leading_is_neg	57792799
Q_to_Fp	226838
Qdivii	141912631
Qdivis	1592284
Qdiviu	148677585
Zp_nosquare_m1	42
_serprec	7185086
addQp	4763004
addRc	307796368
addRq	1288
addTp	7
add_intmod_same	3344848
add_rfrac	3018271
add_rfrac_scal	8811940
add_scal	42809388
add_ser_scal	414401
addqf	77
addsub_frac	40598464
addsub_frac_i	14120538
addsub_polmod	7203
addsub_polmod_scal	13456508
addsub_pp	19972687
conj_i	31491045
conjvec	84
divRc	2286192
divRq	301
divTp	3674
div_T_scal	7128615
div_intmod_same	341830
div_polmod_same	37016
div_rfrac	1187237
div_rfrac_pol	262344
div_rfrac_scal	32139
div_scal_T	9265322
div_scal_pol	9257079
div_scal_rfrac	37767
div_scal_ser	19096
div_ser	774252
div_ser_scal	1343391
divcR	23352451
divfq	42
divpT	1204917
divpp	13213115
divqf	63
divrunextu	213714054
fill_ser	5715854
fix_rfrac	207739
gadd	6133443182
gaddsg	270740215
gconj	390135
gdiv	439032947
gdivgs	13001614
gdivgu	60368007
gdivgunextu	1583803
ginv	36592741
gmul	8681664040
gmul2n	143702575
gmulsg	236564171
gmulug	282637822
gred_rfrac2	44825557
gred_rfrac_simple	57796888
gsqr	1183936595
gsub	2886926917
gsubsg	3234916
init_ser	5728306
inv_polmod	189689
is_ext_qfr	98
kro_quad	35
mkpadic_mod	24593756
mulRc	354218921
mulRq	2324
mulTp	4985011
mul_gen_rfrac	161432
mul_intmod_same	2629227
mul_polmod	2674945
mul_polmod_same	8529774
mul_polmod_scal	3238985
mul_rfrac	7910299
mul_rfrac_scal	10454863
mul_scal	154322709
mul_self_scal	7646066
mul_ser_scal	321223
mulcIR	11645395
mulcc	278997826
mulcxI	15627747
mulcxmI	2985976
mulcxpowIs	5565093
mulpp	17503204
mulqf	28
mulqq	1127
mulrfrac	37789896
quad_polmod_conj	18403
quad_polmod_mul	5860209
quad_polmod_norm	18403
rfrac_denom_mul_scal	9959106
ser_add	3592942
ser_normalize	7658
setfrac	14999293
sqr_polmod	419385
sqr_ser_part	113207
sqrq	70
sub_intmod_same	1027929
transtype	154402745
utoi_sign	64530486
warn_coercion	105

Generated by: LCOV version 1.16